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Showing posts with label shots. Show all posts
Showing posts with label shots. Show all posts
Friday, June 15, 2012
Visual Effects Tips 2
[Visual Effects Tips 1 post]
Time is important in visual effects. There’s never enough of it so make every attempt to minimize wasted time and simple mistakes.
Many of these examples are animation or compositing but most apply to the majority of visual effects work from texture or matte painting to lighting.
Checking materials
When starting a task or shot check the materials you’ve been provided.
Are all the materials correct?
Does the live action match the count sheet?
If there’s a match move is it correct?
If you’re composting are the supplied renders correct with correct alphas?
If there are problems flag them immediately. If you don’t check you may not know that there are problems until well into the shot, at which time trying to correct the mistakes will take longer and be more difficult.
After confirming everything is ok become familiar with the material. If it’s a greescreen take a look at the screen and potential problems extracting the mattes. If you’re going to roto the live action run the clip a few times to see what’s happening so you can plan your approach.
Note to visual effects companies: Make sure your contracts include explicit details for deliveries to your company. File formats, schedules, naming, file organization, size, etc. Sometimes it’s amazing the amount of incorrect material received from a client. On one project I worked on the editorial dept seemed to have a PA who was simply recopying everything onto hard drives and shipping them with no information and no organization. The visual effects company then would have to spend hours sifting through the material to determine what was new and what had changed. In other cases I’ve heard of some editorial departments constantly providing incorrect count sheets. By having this info in the contract the first time this happens flag it to the client and inform them that additional lapses that require rework or unplanned man hours correcting will be billed on a time and material basis. Additional costs seem to be one of the few ways to get a clients attention unfortunately but it also means that the meager profits will be less likely soaked up by these types of sloppiness or errors on the clients part.
Thinking
Now that you’ve reviewed the materials take a moment to think through the task at hand and how this will be accomplished. What are the critical elements, what are the steps that will need to be done, what tasks will have to be done by other departments, etc. What are the items that will likely change or that will need special care? If this a stereo shot or will be converted to stereo after the fact then you will have to consider the implications of working in real 3D space. If you’re compositing you’ll need to think of the layering process.
KISS
Keep it simple stupid. In your plan for the task try to keep it simple. You have to anticipate the areas that will need to be controlled independently and break it up accordingly but avoid going crazy with layers or keyframes if possible. A complex shot will probably require more than simple work but don’t needlessly make the project or the work complex.
Sharing
As you start thinking of the shot and the steps required keep in mind it’s likely you will have to pass the work on to someone during the course of the show. That someone could be you having to re-open the project and make changes two months after it was finalled or it could be you re-starting the shot after it was put on hold for three months. Or it could be a co-worker who has to take over the shot while you finish something else or the shot may have to be split up because of an impending deadline.
With that in mind you want to make it so no one, including yourself, has to spend hours reverse engineering what you were doing and why. (I’m not even going mention the possibility that a sequel may mean some of these files and projects are opened years later)
Fundamentals
Start with the fundamentals. If you’re an animator then you want to make sure you have the proper poses at the correct key frames. Don’t get lost in trying to do the secondary animations, just focus on the fundamental animation. If you’re a compositor adjust the black levels and adjust the basic color of the assortment of elements you’ve been provided before throwing in all the layering atmospherics and other enhancements.
Once these are done and approved then you know you have a solid foundation to build on. It allows the supervisor or director the ability to review the work before you spend a lot of time on it. There may be radical changes that would make all the additional work worthless.
There will be times when it will be useful to do slop or rough animation, renders and composites. Frequently it’s necessary to block in an entire sequence so the director and editor can review before proceeding. Other times it may be necessary to provide shots for test screenings that were scheduled to be done in the future. Regardless you’ll get notes on the shots and the first impulse will be to take these quick and dirty versions and start making adjustments. However it’s almost always best to get back to the foundation and the basics before addressing the notes. If the black levels are off or the basic timing of animation is wrong, it will still be wrong even tweaking the other aspects of the shot. And in the end it’s likely you’ll waste a lot of time and have to scrap it to get back to where you should have started from.
Priorities
You should have a To Do list for every shot you work on. With feedback from the supervisor or director you may be changing the order of priorities. Neither the director nor supervisor will want to ask multiple times for the same thing. Let them know if there is an issue accomplishing that.
If you’re reviewing yourself play the shot through and note the items that stand out to you as not in keeping with what the final shot should be. Determine the priority based on which issues truly jump out the most and which ones are fundamental issues versus getting sidetracked and spending time noodling with a few pixels in the corner. If it had to go in the movie tomorrow what are the top 5 items to be fixed or changed?
As you work on each item mark it off your To Do list so you always know how much you’ve done and how much is still to be done.
Monitor
Is your monitor actually calibrated? Are you using the correct lookup table and gamma settings? Are you seeing the same results you see in dailies review and that the supervisor and director see? If not check with your company to see if your system can be calibrated or you’ll have to develop an eye to compensate for the difference. Be aware if your system or playback has limited color depth.
Reviews
If you’re presenting to the director or supervisor it’s usually worthwhile having the previous version loaded and ready to review since many times it will be used for reference and comparison. If you’re showing with and without results in something like Nuke then wire up the viewer so you can quickly cycle though the different versions or variations if possible. Having to zoom out, find the areas, relink the viewer, etc are time consuming and should have already been done ahead of time. Sometimes it’s worth putting in a switch to quickly change the composite flow. Create snapshots in After Effects or other apps.
Reviewing your work
For your own reviews crank the gamma up and down and the exposure up and down to spot any inconsistencies or level issues. Try the alternate lookup tables (make sure to return to normal once done reviewing). Will the shot hold up in the DI or once it’s transferred to video? Are areas being clipped or is there a mismatch of blacks and levels? Is there any quantizing? Check the blue channel for grain issues. Have you added the proper amount of grain and does the whole shot match?
Play it slow, fast and in reverse to see if everything is working as it should. This can sometimes show flaws in the animation or simply allow you to spot fluctuation problems.
When you’re staring at something a long time you may not spot some of the flaws that might be obvious to others. Painters sometimes look at their work in a mirror to give them a different feel for the painting. This was common in the pre-digital days with matte painters. Flopping the image in the viewer or composite will provide this same option of seeing the shot in a new light.
Be honest with yourself. If the animation or whatever you're working on isn't working consider how to fix it. Discuss with a co-worker, lead or supervisor if you know it's wrong but aren't sure how to proceed.
Organize
Do your work in an organized fashion that follows logical thinking. If your company has templates or guidelines be sure to follow those. It’s easy in some apps such as Nuke to end up with something that looks like a mess of spaghetti. This will chew up your time daily to maintain and change and it will mean that anyone else who needs to work on the composite will spend extra time digging through the composite.
Come up with some basic conventions yourself if none is provided by your company or lead. Try to be consistent about the approach and naming. Group parts of the shots as modules. This makes it easy to enable/disable sections or to switch sections. If you’re working in Photoshop you might want to put sections in folders to keep it more organized. Likewise with some roto packages and other apps there are opportunities to group related items.
Document
It’s not always clear what your project file is doing. It may seem totally obvious to you now but to others or even yourself a few weeks from now it will likely be a totally mystery. If you’re writing software code then include comments. If it;s a complex process with multiple files consider writing a Read Me file or some basic document describing what the process is and how it works. By including some forms of documentation it will be easier and faster to keep track of what is what. Many software packages offer methods to document the work as you’re doing it. Label layers in After Effects and Photoshop. This minimizing the amount of guess that is done or the toggling of layers to determine exactly what each is doing. Label key nodes in Nuke.
Some apps allow adding comments. Nuke provides Sticky Notes so you can mark a specific area with a reminder to yourself or an explanation why you’re doing it this way. Their backdrop can be placed behind a number of nodes with text and with user defined colors making it easy to spot key areas even on a large and complex composite. Nuke also provides No Op nodes that can be labeled. Take a look at the software you’re using to determine how you can use labels and other built in documentation. If none exists consider writing up a short text file in the director with your notes.
Add slates to your rendered images and add useful comments there. These are going to become very valuable when you have to dig back through them for yourself or a client.
Save often
Many software packages have autosaving functions. Make sure these are turned on but also get in the habit of saving yourself to make sure your work is being saved where it needs to be saved.
Save versions
Save your files and projects as you go along with version or take numbers. Use the company defined file structure and naming conventions. Especially important if you’ve made major changes. It’s very frustrating when the client or supervisor likes a test or previous version you did but you didn’t save the project. Now you have to spend time trying to recreate what you already did once before.
Optimize
When you work on a shot you will likely have to render quite a few takes on your machine and/or on the render farm. If for some reason your render isn’t optimized that can equate to quite a few hours of lost production time and processor time. As you manipulate, test and review interactively an unoptimized configuration can mean the difference of trying multiple changes in a short time or become a slog of spending most of your day making a few simple changes. It may mean the difference of producing a great result on a short turnaround or a mediocre result since you didn’t have time to manipulate and render a better version.
Optimize your renders when possible. Know the application you’re working in and know what options there are when rendering. Here’s a list of optimizations for Nuke. There’s likely more than a few lists for all visual effects software packages. Avoiding things that slow down the app and doing more of the things that speed up the app may have a big impact on the day to day work. Consider using low resolution proxy models or elements when you can for working on animation or basic testing. Consider pre comps and caching when working on the top layer. Consider rendering just a frame range of the shot and combining it previously rendered frames to check the new frames in context.
For specific tasks you might turn off some of the advanced settings - motion blur, fur render, etc. as long as you know what you’re evaluating. You might be able to disable specific areas of a composite or render if that’s not what you’re working on. Just make sure to restore all of the settings for the final render and another other renders that require full reviews.
There’s no point in spending 3 days trying to shave a few seconds off the entire shot render but if your render is running much slower than it should due to simple changes, then it’s a waste of time and resources.
The other thing to consider optimizing is yourself and your approach. If you’re working a lot in one software package then get to know all the keyboard and mouse shortcuts. Configure the app keys or your Wacom to take advantage of specific and frequent tasks. Use macros or scripts as needed for repeating common tasks. In Photoshop use actions for tasks that you do a lot of.
Check your results
Check all the renders or tests you generate and consider them in terms of the request from the director or supervisor. Make sure to check your work before passing it on to others to use. Do NOT assume that its correct. If you’re an animator check the final animation for any stray keyframes or oddities. Rotoscopers should make sure the motion and coverage is correct. If you’re rendering simulations make sure they’re the required length and have correct alphas. If you’re a TD make sure there aren’t any glitches or bad frames rendered.
It’s far better to find out now and fix it rather than getting a frantic call late at night two weeks later.
Once you’ve checked the results make sure everything has been correctly entered int whatever asset database your company may be using. Make sure to prep the files for archiving if you’re finished.
Keep a log
Keep a log of the time you work and the shots and tasks you’re working on. You likely already do this for your timecard or for production but it’s worthwhile recording it as well for yourself. It can be a real eye opener to see how much actual time was spent on a shot or given task or how much linear time it took by the time the back and forth happened with the director. Use this as a reference when you’re asked to bid on a shot or when you’re asked how much time you think is required to get the version done. All of us in visual effects are eternal optimists. We assume we can whip out the next version in a couple of hours. Time after time of saying that with a client waiting and disappointing them with something two days later is a problem. It’s also a problem for the visual effects company who bids on the amount of time required and unknowingly underbids the work simply because everyone is optimistic. The company should in fact be doing their own reality check of what the typical shot requires but most companies don’t work that way. No point in budgeting 2 hours of roto per shot on a new show if the company average was 8 hours of roto per shot on the last show.
Also keep a record of the bids you provide when bidding a show. Don’t be surprised if the numbers changed quite a bit when you go to do the actual work months later. Especially problematic when they try holding you to it. The supervisor or producer may think you were pessimistic and ‘adjusted’ the amount of time much lower. Or in some cases they may have added a lot of padding.
Check the next phase
Once you’re done with your tasks and passed the files or elements on it’s usually out of your hands. And the company probably wants you to be focusing your efforts on the next task. But when possible it’s worth checking the next step, the next render or task. You can check to make sure the correct version is in fact being used of your animation. You can make sure the root elements or renders are the right ones and are being used correctly. It’s possible there’s been a mixup or confusion on the next step and by viewing the 10 second shot you can flag an error that may not be evident to others.
Check the final
If a shot you worked on in any form is finalled check it out. Its worth doing a reality check of what you did and how it was used in context of the shot and project. Did you over build details of the model that never show up given the action or smoke levels? Did texture map you painted work? Did that elaborate 30 second shot get cut down to 2 seconds? Would you have done more on a specific aspect that would have made the shot better? There may not be much you can do about some of these things but it’s worth getting the experience and understanding how things come to be. It’s also worth considering how would you approach this same task or type of shot next time. Would you change anything? Have you learned anything you can apply to the remaining shots or to future projects?
[I'll have future tips posts. Feel free to add your own tips in comments]
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Wednesday, May 14, 2008
Designing Visual Effect Shots
Designing Visual Effect Shots, Part 1
(This posting started getting very long and cover a lot so I’m breaking it into smaller postings. I’ll get into more specific details in future postings.)
The success of a Visual Effects shot is not only dependent on the technical aspects of the shot but also the creative aspects. It all starts with the initial shot design.
A well designed visual effects shot will have impact and help to tell the story clearly. A poorly designed shot may confuse the audience and at the very least will squander an opportunity. A poorly designed shot can actually cost more if the studio or director decides in the edit stage that it’s just not working. At that point the shot could be re-shot with a better design (unlikely) or many attempts will be made to fix the shot in post without a clear understanding of the problem.
Note that the design criteria for visual effects versus normal live action shots are primarily the same. The differences with visual effects shots are:
1. Usually the entire visual effects shot is not visible or apparent at the time of shooting. Images will be added later or the existing image will be modified. This requires pre-planning. A live action shot is usually working or not working on the set. If a camera angle makes a stunt look boring then they’ll know that when reviewing the video on set.
2. On live action the Director of Photography and Camera Operator are focused on the look of the shot in addition the director. The director respects their opinion. With visual effects the director and a storyboard artist may have designed the initial shots before the visual effects people are even hired. How much influence the visual effects supervisor and his team have on shot design depends greatly on the director and how much respect they have for the visual effects process. The better directors understand this and take advantage of the visual effects team.
3. Visual effects sometimes deal with design issues that don’t come up directly in live action. How to show the scale of smooth object floating in space? How to transform this paperweight into a creature?
4. Visual effects can be much more limitless. With live action you have set and equipment restrictions which may prevent you from doing certain types of things. A visual effects shot can have more freedom of action, movement of camera and lighting effects.
5. Visual effects can require a deft hand of design and editing just as a comedy sequence requires some finesse of timing, angles and specific phrasing.
Spider
Below are some of the many issues to keep in mind when designing a visual effects shot. These aren’t rules, just a set of suggestions.
Does the shot help to tell the story?
This should be a fundamental of any shot or scene in a film, whether live action or visual effects. Sometimes visual effects are only used as eye candy. The director wants to wow the audience with a car crash, explosion or a visual effects shot. If that can be done and still work to tell the story then that’s great. If it’s only purpose is eye candy to wow the audience then it may be a lost cause.
Audiences these days have seen a lot visuals between films, tv, video games and the internet. They’ve come to expect something new and different. Visual Effects are not as special and magical as they once were to the audience. There was a wow factor in the early days of computer graphics when things were new. It becoming more difficult to find techniques that provide the wow factor. Shot design is a major factor to making the wow factor even using standard techniques. As a case in point, THE MATRIX used ‘bullet’ time and most people thought this was the first use of it. There had already been at least one movie with the same effect (LOST IN SPACE) and a few commercials but the combination of art direction and design combined with the story made an impact.
Even in the early 80’s people thought much of what they saw was computer graphics. A number of visual effects commercials were designed to look like computer graphics even though many of these were done by traditional animation techniques. Logos would fly through the air with metallic glints. These were all done with a number of pieces of artwork and passes on an animation stand. For ESCAPE FROM NEW YORK at Dream Quest we used physical models of building painted black with white lines.
What is the point the shot has to make?
Maybe it’s to establish a castle or to show a creature emerging from a box. Whatever the reason it’s important to keep that in mind throughout the process. Given the length of time from the initial design to the completed final, the shot can veer off course quite a bit.
At the time of shooting someone may have a ‘better’ idea. Why don’t we frame it like this? Why are we wasting all of that frame area there? This is when the visual effects supervisor has to remind them that the empty area on the side will hold a creature in the final shot. Another reason why storyboards are essential is to provide a clear visual of the final shot. More likely it will be a subtle change that will have a big impact later. (Let’s put this prop here, lets add a real explosion in the foreground.)
In post production the editor may want to reframe the shot or use a different element entirely. The compositor may put in more smoke in the foreground. Everyone involved in the shot (director, supervisor, animator, technical director, etc) are likely to be focused on the details and lose sight of the purpose of the shot. In an attempt to make the shot even ‘cooler’ you lose the focus of the shot. It’s only when it’s cut in will the real problem become obvious again. The reason for the shot may now be so obscured that the audience will be confused and lost. If that’s the case it throws them out of the movie. Try to always review the shot in context and take a step back to check the intent of the shot.
Does the shot fit in the movie? Does it fit into the sequence?
Unless it’s a specific dream sequence, most visual effects shots are supposed to blend into the rest of the film. This is true whether it’s a period piece or a science fiction future thriller. The design of the shots, the camera motion and the lighting should match the live action. If you have a hand held action sequence and cut to a locked off visual effects shot, then it will stand out.
My suggestion to directors is to design the shots as if everything is really there. How would you frame and shoot this in live action? There’s a tendency to treat the design of even simple visual effects as different than the rest of the film. “We’re paying for the shot and by gosh we’re going to show it off” is sometimes the approach taken. If it’s a real building they might frame it from a ¾ angle and not make a big deal of it. If it’s a matte painted building then it’s likely to be designed to be shot straight on with clouds added to the sky. All of those are clues to the audience that something about the shot isn’t right.
It’s possible for a disconnect to happen since the director usually sits down with a storyboard artist months before shooting. These shot designs may be a different aesthetic than how the director of photography approaches the live action. The director is involved with both teams but there are thousands of choices to be made that may place them out of sync. There may be times a second unit director is approaching the shots differently than the main director. Sometimes in post the director realizes he can change a lot, especially on a virtual shot Focusing on a hand full of shots may cause them to shift away from the rest of the film.
Adjust the design of the shots based on their context and what they’re supposed to accomplish. If they’re supposed to be realistic backgrounds then all the more reason to fit them into the rest of the movie and avoid drawing attention to them. Once again, how would you treat this if it really existed? If it’s a dramatic effect then design the shot to take advantage of that and push it within context of the film.
(more design posts to come)
(This posting started getting very long and cover a lot so I’m breaking it into smaller postings. I’ll get into more specific details in future postings.)
The success of a Visual Effects shot is not only dependent on the technical aspects of the shot but also the creative aspects. It all starts with the initial shot design.
A well designed visual effects shot will have impact and help to tell the story clearly. A poorly designed shot may confuse the audience and at the very least will squander an opportunity. A poorly designed shot can actually cost more if the studio or director decides in the edit stage that it’s just not working. At that point the shot could be re-shot with a better design (unlikely) or many attempts will be made to fix the shot in post without a clear understanding of the problem.
Note that the design criteria for visual effects versus normal live action shots are primarily the same. The differences with visual effects shots are:
1. Usually the entire visual effects shot is not visible or apparent at the time of shooting. Images will be added later or the existing image will be modified. This requires pre-planning. A live action shot is usually working or not working on the set. If a camera angle makes a stunt look boring then they’ll know that when reviewing the video on set.
2. On live action the Director of Photography and Camera Operator are focused on the look of the shot in addition the director. The director respects their opinion. With visual effects the director and a storyboard artist may have designed the initial shots before the visual effects people are even hired. How much influence the visual effects supervisor and his team have on shot design depends greatly on the director and how much respect they have for the visual effects process. The better directors understand this and take advantage of the visual effects team.
3. Visual effects sometimes deal with design issues that don’t come up directly in live action. How to show the scale of smooth object floating in space? How to transform this paperweight into a creature?
4. Visual effects can be much more limitless. With live action you have set and equipment restrictions which may prevent you from doing certain types of things. A visual effects shot can have more freedom of action, movement of camera and lighting effects.
5. Visual effects can require a deft hand of design and editing just as a comedy sequence requires some finesse of timing, angles and specific phrasing.
Spider
Below are some of the many issues to keep in mind when designing a visual effects shot. These aren’t rules, just a set of suggestions.
Does the shot help to tell the story?
This should be a fundamental of any shot or scene in a film, whether live action or visual effects. Sometimes visual effects are only used as eye candy. The director wants to wow the audience with a car crash, explosion or a visual effects shot. If that can be done and still work to tell the story then that’s great. If it’s only purpose is eye candy to wow the audience then it may be a lost cause.
Audiences these days have seen a lot visuals between films, tv, video games and the internet. They’ve come to expect something new and different. Visual Effects are not as special and magical as they once were to the audience. There was a wow factor in the early days of computer graphics when things were new. It becoming more difficult to find techniques that provide the wow factor. Shot design is a major factor to making the wow factor even using standard techniques. As a case in point, THE MATRIX used ‘bullet’ time and most people thought this was the first use of it. There had already been at least one movie with the same effect (LOST IN SPACE) and a few commercials but the combination of art direction and design combined with the story made an impact.
Even in the early 80’s people thought much of what they saw was computer graphics. A number of visual effects commercials were designed to look like computer graphics even though many of these were done by traditional animation techniques. Logos would fly through the air with metallic glints. These were all done with a number of pieces of artwork and passes on an animation stand. For ESCAPE FROM NEW YORK at Dream Quest we used physical models of building painted black with white lines.
What is the point the shot has to make?
Maybe it’s to establish a castle or to show a creature emerging from a box. Whatever the reason it’s important to keep that in mind throughout the process. Given the length of time from the initial design to the completed final, the shot can veer off course quite a bit.
At the time of shooting someone may have a ‘better’ idea. Why don’t we frame it like this? Why are we wasting all of that frame area there? This is when the visual effects supervisor has to remind them that the empty area on the side will hold a creature in the final shot. Another reason why storyboards are essential is to provide a clear visual of the final shot. More likely it will be a subtle change that will have a big impact later. (Let’s put this prop here, lets add a real explosion in the foreground.)
In post production the editor may want to reframe the shot or use a different element entirely. The compositor may put in more smoke in the foreground. Everyone involved in the shot (director, supervisor, animator, technical director, etc) are likely to be focused on the details and lose sight of the purpose of the shot. In an attempt to make the shot even ‘cooler’ you lose the focus of the shot. It’s only when it’s cut in will the real problem become obvious again. The reason for the shot may now be so obscured that the audience will be confused and lost. If that’s the case it throws them out of the movie. Try to always review the shot in context and take a step back to check the intent of the shot.
Does the shot fit in the movie? Does it fit into the sequence?
Unless it’s a specific dream sequence, most visual effects shots are supposed to blend into the rest of the film. This is true whether it’s a period piece or a science fiction future thriller. The design of the shots, the camera motion and the lighting should match the live action. If you have a hand held action sequence and cut to a locked off visual effects shot, then it will stand out.
My suggestion to directors is to design the shots as if everything is really there. How would you frame and shoot this in live action? There’s a tendency to treat the design of even simple visual effects as different than the rest of the film. “We’re paying for the shot and by gosh we’re going to show it off” is sometimes the approach taken. If it’s a real building they might frame it from a ¾ angle and not make a big deal of it. If it’s a matte painted building then it’s likely to be designed to be shot straight on with clouds added to the sky. All of those are clues to the audience that something about the shot isn’t right.
It’s possible for a disconnect to happen since the director usually sits down with a storyboard artist months before shooting. These shot designs may be a different aesthetic than how the director of photography approaches the live action. The director is involved with both teams but there are thousands of choices to be made that may place them out of sync. There may be times a second unit director is approaching the shots differently than the main director. Sometimes in post the director realizes he can change a lot, especially on a virtual shot Focusing on a hand full of shots may cause them to shift away from the rest of the film.
Adjust the design of the shots based on their context and what they’re supposed to accomplish. If they’re supposed to be realistic backgrounds then all the more reason to fit them into the rest of the movie and avoid drawing attention to them. Once again, how would you treat this if it really existed? If it’s a dramatic effect then design the shot to take advantage of that and push it within context of the film.
(more design posts to come)
Wednesday, February 20, 2008
VES & Gnomon - Golden Compass Breakdown
Gnomon School Of Visual Effects And The VES
Welcomes The Visual Effects Team From The Academy Award Nominated, The Golden Compass
Feb 28, 2008 in Los Angeles at the Gnomon School
Academy Award nominated Michael Fink, Senior Visual Effects Supervisor, Susan Macleod, Visual Effects Producer, Bryan Grill, Visual Effects Supervisor for Digital Domain and Raymond Chen, Co-visual Effects Supervisor for Rhythm & Hues Studios will be will be discussing the planning and execution of many of the visual effects shots for The Golden Compass.
Click above on name of post for more info.
Welcomes The Visual Effects Team From The Academy Award Nominated, The Golden Compass
Feb 28, 2008 in Los Angeles at the Gnomon School
Academy Award nominated Michael Fink, Senior Visual Effects Supervisor, Susan Macleod, Visual Effects Producer, Bryan Grill, Visual Effects Supervisor for Digital Domain and Raymond Chen, Co-visual Effects Supervisor for Rhythm & Hues Studios will be will be discussing the planning and execution of many of the visual effects shots for The Golden Compass.
Click above on name of post for more info.
Monday, January 21, 2008
VFX Schedules
More reader questions regarding schedules
What is a 'Shot Timeline'...is this some sort of
device used to tell the amount of time the shot should
last for or what. You also made mention of some types
of, magnetic boards, modified storyboards or computer
software which is most effective.
Scheduling is a big issue since you have a lot of resources and need to deliver in a timely manner.
There are at least 4 types of schedules. They can be corkboards, on the computer, magnet strips, etc. The specifics are
up the vfx production team (producer and supervisor)
1. Schedule of the shots. This is the true linear time estimate and is usually in a timeline. That timeline will be the length of the production.
It may list that shot KR030 starts June 14 and completes August 19. The shot itself is likely to be budgeted for less time but you have to take some delays into account. (changes from the director, waiting for feedback, shooting an extra element, etc)
Each shot laid out may also show the different stages (animation, TD, roto, etc)
2. Target shots - These are shots due in the next couple of weeks. These may just be names of the shots or their storyboards on a simple wall chart that's broken down by days.
The production team can review this and say next week they expect to complete KR040 on Wednesday. If shot RM125 won't be done this Thursday as planned then it will be moved to the next week at the likely day. This is so the team can focus on the immediate needs.
3. Storyboards - This is all the storyboards laid out in film order. Each has a breakdown of the different tasks and the initial scheduled dates. As work is done a colored dot may be applied that indicates which stage is done. (i.e. finished with matchmoving and layout, ready for animation) Red dot signifies a completed (finaled) shot or folding up the corner of the storyboarded breakdown. The storyboards may be replaced or augmented by stills from the actual footage. Most productions attach bulletin boards in the production office for this. This allows everyone to see the big picture. You get a true sense for what's been done, how much work remains and if there are some shots that are being overlooked.
4. Schedule of artists - Your key resources are the artists. There's a timeline with each artist (TD, animator, compositor, etc) that lists what shots they're scheduled to work on and when. An artist may be working on 1 to 5 shots at a time. After completing a shot the next shot for them is already scheduled. If a director adds a additional shots or something changes in the schedule then the production team will review this board/timeline to see who's available and what they should re-assign. If they need a shot sooner than expected it may have to be moved forward in the schedule and given to a different artist.
How are 'final shots' determined. If the feature
film has about 25 effect shots how can I conclude that
I am expected to get 5 final shots a day for 5 days.
Also, what happens if the finals isn't what the
director had in mind...will the shot be repeated and
isn't this waste of time.
A shot may be internally finaled by the supervisor but it's not truly finaled until approved by the director.
It's important to understand the director was involved in all stages of the shot (from the original design, the shoot and now post production) The director will have seen the shot tests from animation and at least preliminary renders and composites. This has to be done so they can cut it into the film and judge it context. Changes can occur at any point. If the director doesn't final the shot when it's expected to final it's usually because the final polish hasn't been done to their liking. Note that even after a director has finaled a shot it could still be unfinaled at some point later (studio hates it, new concept). In these cases that's a major change order (time and money).
Time - If you have 25 shots due in 5 days then you have to final an average of 5 shots a day. To calculate this you take the the number of shots left to do and divide by the remaining time you have (assuming 5 day week that the director can approve them). This will give you the average number of shots per day. You can just as easily calculate number of shots per week or average days per shot. The initial time is based on the date when you have the turnover of the shots (when they've been edited and production tells you these are the takes, shot numbers and details).
You're likely to start off woefully less than the average at the start of post production since you have to fill the pipeline and it can take some time to get the film scanned, cleaned, matchmoved and ready to work on. The number of shots actually finaled rises exponentially as you get closer to your finals date (contractual day you have to complete so they can get it in theaters). More things will have been worked out, the crew has hit their stride, the director and supervisor are now seeing through new eyes (200 shots in the next two week, akkkk!), you're waking up in a cold sweat at night and hopefully the studio has stopped fiddling with the shots.
Related:
Time's a wasting
What is a 'Shot Timeline'...is this some sort of
device used to tell the amount of time the shot should
last for or what. You also made mention of some types
of, magnetic boards, modified storyboards or computer
software which is most effective.
Scheduling is a big issue since you have a lot of resources and need to deliver in a timely manner.
There are at least 4 types of schedules. They can be corkboards, on the computer, magnet strips, etc. The specifics are
up the vfx production team (producer and supervisor)
1. Schedule of the shots. This is the true linear time estimate and is usually in a timeline. That timeline will be the length of the production.
It may list that shot KR030 starts June 14 and completes August 19. The shot itself is likely to be budgeted for less time but you have to take some delays into account. (changes from the director, waiting for feedback, shooting an extra element, etc)
Each shot laid out may also show the different stages (animation, TD, roto, etc)
2. Target shots - These are shots due in the next couple of weeks. These may just be names of the shots or their storyboards on a simple wall chart that's broken down by days.
The production team can review this and say next week they expect to complete KR040 on Wednesday. If shot RM125 won't be done this Thursday as planned then it will be moved to the next week at the likely day. This is so the team can focus on the immediate needs.
3. Storyboards - This is all the storyboards laid out in film order. Each has a breakdown of the different tasks and the initial scheduled dates. As work is done a colored dot may be applied that indicates which stage is done. (i.e. finished with matchmoving and layout, ready for animation) Red dot signifies a completed (finaled) shot or folding up the corner of the storyboarded breakdown. The storyboards may be replaced or augmented by stills from the actual footage. Most productions attach bulletin boards in the production office for this. This allows everyone to see the big picture. You get a true sense for what's been done, how much work remains and if there are some shots that are being overlooked.
4. Schedule of artists - Your key resources are the artists. There's a timeline with each artist (TD, animator, compositor, etc) that lists what shots they're scheduled to work on and when. An artist may be working on 1 to 5 shots at a time. After completing a shot the next shot for them is already scheduled. If a director adds a additional shots or something changes in the schedule then the production team will review this board/timeline to see who's available and what they should re-assign. If they need a shot sooner than expected it may have to be moved forward in the schedule and given to a different artist.
How are 'final shots' determined. If the feature
film has about 25 effect shots how can I conclude that
I am expected to get 5 final shots a day for 5 days.
Also, what happens if the finals isn't what the
director had in mind...will the shot be repeated and
isn't this waste of time.
A shot may be internally finaled by the supervisor but it's not truly finaled until approved by the director.
It's important to understand the director was involved in all stages of the shot (from the original design, the shoot and now post production) The director will have seen the shot tests from animation and at least preliminary renders and composites. This has to be done so they can cut it into the film and judge it context. Changes can occur at any point. If the director doesn't final the shot when it's expected to final it's usually because the final polish hasn't been done to their liking. Note that even after a director has finaled a shot it could still be unfinaled at some point later (studio hates it, new concept). In these cases that's a major change order (time and money).
Time - If you have 25 shots due in 5 days then you have to final an average of 5 shots a day. To calculate this you take the the number of shots left to do and divide by the remaining time you have (assuming 5 day week that the director can approve them). This will give you the average number of shots per day. You can just as easily calculate number of shots per week or average days per shot. The initial time is based on the date when you have the turnover of the shots (when they've been edited and production tells you these are the takes, shot numbers and details).
You're likely to start off woefully less than the average at the start of post production since you have to fill the pipeline and it can take some time to get the film scanned, cleaned, matchmoved and ready to work on. The number of shots actually finaled rises exponentially as you get closer to your finals date (contractual day you have to complete so they can get it in theaters). More things will have been worked out, the crew has hit their stride, the director and supervisor are now seeing through new eyes (200 shots in the next two week, akkkk!), you're waking up in a cold sweat at night and hopefully the studio has stopped fiddling with the shots.
Related:
Time's a wasting
Friday, June 29, 2007
More on VFX Time Crunch
fxguide
has a follow up to the Variety article on the crushing post-production schedules for visual effects. This was touched on in my Wasting Time post.
The problem here is the studios are making very expensive movies and want to reduce the amount of time they’re paying interest on what is essentially a huge loan. Since they can’t shoot in any less time, especially with a lot of locations and stunts, the burden falls to post-production and primarily to visual effects.
This problem is exacerbated by the fact visual effects are now the fix-it step for the filmmakers. During the course of production it’s now common for those involved to pass their problems off to the visual effects team.
“We don’t have time to move that big crane in the background.”
“Do we have to move that 12 by 12 silk? Can’t you just paint it out?”
Speaking about a large object in the middle of the shot “Would it help if we painted it green?”
“We don’t have the right eye contacts. You’ll have to fix it.”
“We haven’t decided what location this scene plays in so we’ll have to shoot it bluescreen and figure it out later.”
“It’s not working so you guys will have to fix it later. We don’t have time to do fix it now.” (Referring to a stunt, prop or practical special effects)
“You guys can remove the (rain, snow, sun, shadows, etc) right?”
“We can’t afford to do that as planned. (alternate: We don’t have time to do that.) You’ll have to do in post.”
“Isn’t that easy to do? You have computers. It’s got to be a touch of a button now a days.”
“It was never built to do that. You guys will have to make that part move.”
“I know we promised to never to look that way but that’s how it goes.”
“You’ll have to extend the top and bottom of set since they didn’t get the larger stage.”
All of these would be funny if they weren’t real quotes from a shooting set. The VFX supervisor and producer raise the issues (cost, time, quality) frequently onto deaf ears.
Everyone from the production designer to the wig person to the production manager may pass their time or budget limitations to the visual effects people. In the end they come out looking like heroes for finishing on time and budget. Some of the production people even get bonuses for accomplishing this. Unfortunately the buck stops at the door to the visual effects team. There’s no one we can pass the problem on to. Also note that any budget or time savings production gets from doing this is not passed on the visual effects budget. Ultimately it comes out of the same overall budget but for accounting reasons their separate.
Months later when some of production people see the final shots they will have forgotten that they didn’t allow time to shoot that sequence correctly or that you saved their production schedule.
So at this point the visual effects supervisor has to explain to his vfx team and the studio vfx producer they now have another 100-200 shots to do and the pre-planning that was done for some sequences was tossed out and will now have to be done using plates that were shot in the worst conditions. (such as FG bluescreen with fictional lighting and angles to match BG plates done later) Personally I push for less shots done well than a lot of shots done poorly.
As long as the studios make money on the films under compressed time constraints and qulaity isn't the highest thing on the directo's list they will continue to compress the schedules more and more.
It won’t surprise me in the next 2 years if a big tentpole vfx film has to have its release date postponed or to be released with major vfx problems clearly evident to average the audience. And of course the visual effects people will be to blame.
Should the visual effects people be the ones to bare the brunt of the studio money and time issues and be forced to sacrifice their time and family life?
The reason most of us got into visual effects was to create great work and because it was fun. If that’s now boiling down to trying to crank out as much work as possible with lower quality the fun factor will certainly be gone.
has a follow up to the Variety article on the crushing post-production schedules for visual effects. This was touched on in my Wasting Time post.
The problem here is the studios are making very expensive movies and want to reduce the amount of time they’re paying interest on what is essentially a huge loan. Since they can’t shoot in any less time, especially with a lot of locations and stunts, the burden falls to post-production and primarily to visual effects.
This problem is exacerbated by the fact visual effects are now the fix-it step for the filmmakers. During the course of production it’s now common for those involved to pass their problems off to the visual effects team.
“We don’t have time to move that big crane in the background.”
“Do we have to move that 12 by 12 silk? Can’t you just paint it out?”
Speaking about a large object in the middle of the shot “Would it help if we painted it green?”
“We don’t have the right eye contacts. You’ll have to fix it.”
“We haven’t decided what location this scene plays in so we’ll have to shoot it bluescreen and figure it out later.”
“It’s not working so you guys will have to fix it later. We don’t have time to do fix it now.” (Referring to a stunt, prop or practical special effects)
“You guys can remove the (rain, snow, sun, shadows, etc) right?”
“We can’t afford to do that as planned. (alternate: We don’t have time to do that.) You’ll have to do in post.”
“Isn’t that easy to do? You have computers. It’s got to be a touch of a button now a days.”
“It was never built to do that. You guys will have to make that part move.”
“I know we promised to never to look that way but that’s how it goes.”
“You’ll have to extend the top and bottom of set since they didn’t get the larger stage.”
All of these would be funny if they weren’t real quotes from a shooting set. The VFX supervisor and producer raise the issues (cost, time, quality) frequently onto deaf ears.
Everyone from the production designer to the wig person to the production manager may pass their time or budget limitations to the visual effects people. In the end they come out looking like heroes for finishing on time and budget. Some of the production people even get bonuses for accomplishing this. Unfortunately the buck stops at the door to the visual effects team. There’s no one we can pass the problem on to. Also note that any budget or time savings production gets from doing this is not passed on the visual effects budget. Ultimately it comes out of the same overall budget but for accounting reasons their separate.
Months later when some of production people see the final shots they will have forgotten that they didn’t allow time to shoot that sequence correctly or that you saved their production schedule.
So at this point the visual effects supervisor has to explain to his vfx team and the studio vfx producer they now have another 100-200 shots to do and the pre-planning that was done for some sequences was tossed out and will now have to be done using plates that were shot in the worst conditions. (such as FG bluescreen with fictional lighting and angles to match BG plates done later) Personally I push for less shots done well than a lot of shots done poorly.
As long as the studios make money on the films under compressed time constraints and qulaity isn't the highest thing on the directo's list they will continue to compress the schedules more and more.
It won’t surprise me in the next 2 years if a big tentpole vfx film has to have its release date postponed or to be released with major vfx problems clearly evident to average the audience. And of course the visual effects people will be to blame.
Should the visual effects people be the ones to bare the brunt of the studio money and time issues and be forced to sacrifice their time and family life?
The reason most of us got into visual effects was to create great work and because it was fun. If that’s now boiling down to trying to crank out as much work as possible with lower quality the fun factor will certainly be gone.
Thursday, June 07, 2007
Time's a wasting
Click on the Post title above to go to the Variety article on the time the studios allow for VFX on feature films.
Some film producers like to brag how little time they have and how close they came to finishing right before the release of the last movie. Personally I look at that as a sign of poor planning.
What the article doesn't really address much is the difference between planned and unplanned work. If you have 3-4 months of post time but it's all prepped and ready to go (models are built, R&D done, concepts are done,locked sequences from editorial, etc) then you have a fighting chance of getting good work done. Unfortuantely if the entire film edit is being revised on a daily basis and there are major concepts (look of creature, key effects, etc) that the director still hasn't nailed down, then it's going to be a rough ride. It gets worse if the studio decides they want to have creative control in the last 2 or 3 months.
The studios first lock in a release date and then drag their feet on giving the final approvals. Many of the production departments and shooting schedules continue as always so the post production phase is where things are compressed.
With the increase in number of vfx shots and the complexity of shots the studios and directors end up hurting their own product. Time = quality. With vfx there's a direct correlation in most cases between the quality of the work and the amount of time available to adjust the shot. Note that this applies to shooting schedules as well, that's why most features aren't shot in 2 weeks. Compressing the schedule may reduced the post production overhead but the cost in overtime and the cost of throwing everything at it (including many new shops and people) surpasses these by an order of magnitude. And studios wonder why vfx cost as much as they do. If you have 100 people at a vfx vender who now have to have 200 people working 90 hour weeks to complete the changes on time it's going to cost more.
At the end of the day the less time the studios provide the higher the cost and the lower the product quality.
It takes a strong director and producer to get the work done correctly in a time or budget limited way.
Related post
VFX Schedules
Some film producers like to brag how little time they have and how close they came to finishing right before the release of the last movie. Personally I look at that as a sign of poor planning.
What the article doesn't really address much is the difference between planned and unplanned work. If you have 3-4 months of post time but it's all prepped and ready to go (models are built, R&D done, concepts are done,locked sequences from editorial, etc) then you have a fighting chance of getting good work done. Unfortuantely if the entire film edit is being revised on a daily basis and there are major concepts (look of creature, key effects, etc) that the director still hasn't nailed down, then it's going to be a rough ride. It gets worse if the studio decides they want to have creative control in the last 2 or 3 months.
The studios first lock in a release date and then drag their feet on giving the final approvals. Many of the production departments and shooting schedules continue as always so the post production phase is where things are compressed.
With the increase in number of vfx shots and the complexity of shots the studios and directors end up hurting their own product. Time = quality. With vfx there's a direct correlation in most cases between the quality of the work and the amount of time available to adjust the shot. Note that this applies to shooting schedules as well, that's why most features aren't shot in 2 weeks. Compressing the schedule may reduced the post production overhead but the cost in overtime and the cost of throwing everything at it (including many new shops and people) surpasses these by an order of magnitude. And studios wonder why vfx cost as much as they do. If you have 100 people at a vfx vender who now have to have 200 people working 90 hour weeks to complete the changes on time it's going to cost more.
At the end of the day the less time the studios provide the higher the cost and the lower the product quality.
It takes a strong director and producer to get the work done correctly in a time or budget limited way.
Related post
VFX Schedules
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