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)
Showing posts with label storyboards. Show all posts
Showing posts with label storyboards. Show all posts
Wednesday, May 14, 2008
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
Thursday, April 19, 2007
Storyboards
Audio Podcast on Storyboards for visual effects.
21 minutes long.
Previs and Animatics podcast to come.
I'm recording this on my MacBook Pro and am a little rusty going through the whoel process so let me know if you have issues getting the podcast.
21 minutes long.
Previs and Animatics podcast to come.
I'm recording this on my MacBook Pro and am a little rusty going through the whoel process so let me know if you have issues getting the podcast.
Sunday, November 13, 2005
Bidding and Preproduction
Visual Effects Bidding and Preproduction are covered in this podcast.
Storyboards and animatics are included in this discussion.
Transcript
Today I'll be discussing the start of the process, which includes bidding and preproduction.
A studio or producer will contact a visual effects company, which is also referred to as a visual effects house. If a producer or studio has a relationship with an effects company they may provide the script only to that company but more likely they will have at least 3 or 4 effects companies review the script. Studios often have a postproduction supervisor or even a visual effects head who is involved in making sure the postproduction process flows smoothing. If a production company is contacting the effects company directly they may have hired a visual effects producer for the film itself. This is common if the film is very large and will the work will be split out to a few effects companies.
Most of the time the producer will have a script for a film that's been greenlit or is close to being greenlit. Greenlit means that the money has been approved to make the film. Sometimes the producer just needs a ballpark estimate before it precedes any further in development.
At the effects company the visual effects supervisor and effects producer review the script. The visual effects supervisor and effects producer mimic the director and producer but specifically to visual effects. The supervisor's job is to oversee the work from both a creative and technical standpoint and make sure it accomplishes what the director needs. The visual effects producer is in charge of the budget and schedule of the work.
The script is reviewed and the supervisor and producer make notes on what they think the effects work will be. Typically I tag anything that might be effects work and create a list. Details about what the client wants may be minimal at this time. The supervisor and producer sit down and create a ballpark budget based on a rough idea of techniques and their experience. The next step is a meeting with the director and film's producer to clarify exactly what the vision is and what they think they can accomplish with stunts and practical effects work. Based on this conversation the list of effects shots is revised and a new ballpark estimate is created. It's important to provide these estimates in written form so there's no miscommunication.
Before more detailed bids can be created and the job awarded the work has to be very well defined. Scripts usually don't have a lot of detailed descriptions and even when they do the director may have other ideas.
This is the start of the preproduction phase. For a large film this can be 6 to 9 months before shooting even begins. Once filming starts there can easily be a crew of 200 or more people at a minimum cost of $100,000 or more per day. Anything that can be done in preproduction to speed up the actual shoot and make it as smooth as possible is worth it. An ounce of prevention as they say.
The concept phase
In many cases you're being asked to create something that doesn't exist so it's critical to get the design down on paper to allow communication with all involved. The production may start a concept phase where they hire an effects company or their own artists to create artwork. The visual effects art director plays a key role here. The director may not have a clear idea of what the creature or gadget or vehicles is supposed to look like so numerous sketches are done by the artists. The first step usually covers a wide range of possible looks and the artists may also work closely with the production designer to make sure they're on the same page. If there are elaborate makeup or costume designs these are proceeding as well and in many cases the teams work together. Hopefully the director will be clear about which parts of which designs he likes and the designs are refined further. In end color concepts are usually created and in some cases a model sculpture is created. This is sometimes called a Marquette.
Directors vary a lot in terms of being able to visualize and communicate their ideas. It some cases the director may not know what he wants until he sees it. This means you could spend a lot of times doing concept art and in some case this may continue on well into production which can cause further complications.
Sometimes during this concept phase I may shoot some video and do some moving mockups to try to clarify what the effect might look like in motion.
Storyboarding
The next step is to storyboard all the visual effects sequences. There needs to be one storyboard or sketch of every shot that will have effects work. If it's a complex shot with a lot of movement or action then multiple panels will be done similar to a comic book except the format for all shots is the format of the film frame. The production may hire an artist to work directly with the artist or they may have the visual effects company artist work with the director. It's important for the visual effects team to be involved in the storyboarding since they have the most experience in what works and doesn't work in this area. I always suggest to a director he storyboard the shots as if it all existed. This avoids the effect shots being approached differently than the live action and avoids dwelling on a single effect.
Storyboard may seem to suppress the creatively of the scene but they're very important for a few reasons.
A single shot may require a number of departments to work together and prepare for the filming of the shots. With storyboards and concept art the director is able to easily communicate to everyone. A picture as they say is worth a thousand words. Without the boards each person would envision the shots differently.
For the visual effects crew we can't budget a shot until we see what the director sees. It's one thing in the script to set the action as a dogfight in space but it's critical to know the exact number of shots. The effects supervisor has to analyze every board and determine the technical process to create the final image. If an actor is framed one way that might require a bluescreen but if the shot is framed another way it may require rotoscoping or may be a simple split. A single shot may require a dozen different images or as we call the elements. There may need to be a section of a matte painting, a shot of the main actors on location, a shot of some extras against a blue screen, a model shot with motion control and a computer graphic creature all in one shot. Some of these elements may be shot or created over a span of a year so planning is critical. In a film such as star wars there about 2000 shots. Most shots average 5-8 seconds in length for budgeting purposes. In the old days. And I use the term old days to reference pre-digital effects; a large show was 200 shots.
Animatics
If a sequence is very complex, production may want to do animatics. These are essentially moving storyboards. They may be as simple as editing the storyboards together to check the flow and timings of the shots or may involve elaborate 3D models with animation. The storyboards do a good job of conveying the composition and basic action of the scene but moving images provide timing information and camera motion. At times we may videotape models by hand or do other types of mockups using clips from other references.
Both storyboards and animatics are used as a guide and starting point with the understanding that some of the shots will need to change when shooting based on the locations and the actors. It's important not to get too hung up on animatics. Because of their simple texturing they usually don't do a good job of conveying the sense of speed compared to a live action image projected onto a movie screen. It also becomes very easy to create shots you can't actually shoot due to the camera speed or other real world limitations. Some directors try to finesse the animatics in great detail which can make it that much more frustrating to them. They should be used just enough to convey the concept of the shot.
Once the boards are created then it's possible to create an accurate budget for the visual effects work. Budgeting is one of the most difficult tasks in effects work since there are still quite a few unknowns I usually gather the heads of the different departments and review the storyboards. Each department head provides their estimate for the amount of time they expect a shot to take for their discipline. Animation, matte painting, compositing, technical director, etc. Ideally they will bid it based on the performance of their average worker. It's easy to become optimistic when bidding about how quickly the work should be done and how the shots will all flow as planned. Reality and experience quickly temper this urge. Likewise if someone has had a bad experience they may pad their estimates. In either case these deviations from the target add up since there may be several hundred shots budgeted this way.
When reviewing the techniques to use it usually isn't a question of how to do an effect but which way is best for this particular film. Each technique has certain limits associated with it. I'll cover the details to this in another podcast.
As mentioned before it's also common for the studio to bid out the project to multiple effects houses so budget is always an issue. On larger shows the studio may end up dividing up the work among a few effects houses. When this is the case the film usually has an effects producer or coordinator assigned to it to oversee the project to make sure budgets and schedules from multiple effects houses are on target.
Most productions are done on a fixed bid that means that any overages are out of the effects company pocket unless the director requests changes or additions to the from the original planned shots. Part of the budgeting process is determining how much coverage is included for changes. Some places bid a bare minimum, which requires them to request, a change order from the production for additional charges even when a minor change has taken place. Most of the larger effects houses try to include enough funds to cover typical adjustment requests by the director.
The time is also a consideration when budgeting. If there isn't sufficient pre-production or postproduction time the crew may have to work overtime. In this business a 50-hour week is usually a minimum. Days are usually 10 to 12 hours long and a workweek can stretch to be 6 or even 7 days, especially toward the final completion of the project. At the end of Star Trek the motion Picture I worked 90, 12-hour days straight. Since the movie release date is locked at the moment it is greenlit it becomes an unchanging deadline. Obviously this will affect the budget.
You may have to do a fair bit of research and development to create the look the director is after and since this is an artistic endeavor with a different director on each project the amount of time it takes will sometimes be an unknown. One director may like the look of the shots very easily and another may dwell on some detail in a single shot at the expense of other shots.
During the pre-production phase the film departments are busy creating the sets, costumes and other items required for the shoot. On the visual effects side the R&D, research and development, is in process and tests are being shot if new techniques are required. Some of the models (both CG and physical models) can be constructed. Just a note here that CG refers to computer graphics. Visual effects artists usually use CG instead of CGI since it's shorter and not redundant.
We also use this time to work with the director of photography to make sure we're in sync with them. The film stock and shooting process will discussed since this could affect some of the approaches taken in post production.
As the date for shooting nears the visual effects supervisor goes on the tech scout with the other department heads. This may be reviewing the sets or flying to the locations where the film will be shot. The effects supervisor works closely with the director of photography, the practical effects supervisor and the stunt supervisor. Some revisions to budget and storyboards may need to be done once the tech scout is done.
Preproduction on your own
Even if you're doing the visual effects for your own miniDV movie it's important to take advantage of preproduction. It's best if you do a simple sketch or storyboard of your shots. This doesn't have to be anything fancy, it's just to help you review what you're planning to do. When you've sketched it out it's easy to spot some potential problems you might not have thought about.
You'll have to figure out what techniques will be required for each shot. If you haven't done much of this before it's best to keep it simple because a simple shot well done is better than a complex shot poorly done. In most cases a locked off camera will make the shot easier to do. This means use the camera on a tripod and don't move it.
Also consider doing what the professionals do during pre-production. Test. If you have a video camera then try to shoot a simple version of your shot with people filling in for the actors. Step through the process of the shot with this test footage so you're clear about how the technique works. You don't need to finish the shot but this can help figure out how to best shoot the images and how much work will be required in post production. It may not cost you in money but it's important to understand the amount of time required. By doing a test you'll also gain a bit more experience so that your skills will be better for the actual shots.
Well that wraps up today's podcast. Shooting the visual effects will be our next topic. Thank you.
Related post
Budgeting VFX
Storyboards and animatics are included in this discussion.
Transcript
Today I'll be discussing the start of the process, which includes bidding and preproduction.
A studio or producer will contact a visual effects company, which is also referred to as a visual effects house. If a producer or studio has a relationship with an effects company they may provide the script only to that company but more likely they will have at least 3 or 4 effects companies review the script. Studios often have a postproduction supervisor or even a visual effects head who is involved in making sure the postproduction process flows smoothing. If a production company is contacting the effects company directly they may have hired a visual effects producer for the film itself. This is common if the film is very large and will the work will be split out to a few effects companies.
Most of the time the producer will have a script for a film that's been greenlit or is close to being greenlit. Greenlit means that the money has been approved to make the film. Sometimes the producer just needs a ballpark estimate before it precedes any further in development.
At the effects company the visual effects supervisor and effects producer review the script. The visual effects supervisor and effects producer mimic the director and producer but specifically to visual effects. The supervisor's job is to oversee the work from both a creative and technical standpoint and make sure it accomplishes what the director needs. The visual effects producer is in charge of the budget and schedule of the work.
The script is reviewed and the supervisor and producer make notes on what they think the effects work will be. Typically I tag anything that might be effects work and create a list. Details about what the client wants may be minimal at this time. The supervisor and producer sit down and create a ballpark budget based on a rough idea of techniques and their experience. The next step is a meeting with the director and film's producer to clarify exactly what the vision is and what they think they can accomplish with stunts and practical effects work. Based on this conversation the list of effects shots is revised and a new ballpark estimate is created. It's important to provide these estimates in written form so there's no miscommunication.
Before more detailed bids can be created and the job awarded the work has to be very well defined. Scripts usually don't have a lot of detailed descriptions and even when they do the director may have other ideas.
This is the start of the preproduction phase. For a large film this can be 6 to 9 months before shooting even begins. Once filming starts there can easily be a crew of 200 or more people at a minimum cost of $100,000 or more per day. Anything that can be done in preproduction to speed up the actual shoot and make it as smooth as possible is worth it. An ounce of prevention as they say.
The concept phase
In many cases you're being asked to create something that doesn't exist so it's critical to get the design down on paper to allow communication with all involved. The production may start a concept phase where they hire an effects company or their own artists to create artwork. The visual effects art director plays a key role here. The director may not have a clear idea of what the creature or gadget or vehicles is supposed to look like so numerous sketches are done by the artists. The first step usually covers a wide range of possible looks and the artists may also work closely with the production designer to make sure they're on the same page. If there are elaborate makeup or costume designs these are proceeding as well and in many cases the teams work together. Hopefully the director will be clear about which parts of which designs he likes and the designs are refined further. In end color concepts are usually created and in some cases a model sculpture is created. This is sometimes called a Marquette.
Directors vary a lot in terms of being able to visualize and communicate their ideas. It some cases the director may not know what he wants until he sees it. This means you could spend a lot of times doing concept art and in some case this may continue on well into production which can cause further complications.
Sometimes during this concept phase I may shoot some video and do some moving mockups to try to clarify what the effect might look like in motion.
Storyboarding
The next step is to storyboard all the visual effects sequences. There needs to be one storyboard or sketch of every shot that will have effects work. If it's a complex shot with a lot of movement or action then multiple panels will be done similar to a comic book except the format for all shots is the format of the film frame. The production may hire an artist to work directly with the artist or they may have the visual effects company artist work with the director. It's important for the visual effects team to be involved in the storyboarding since they have the most experience in what works and doesn't work in this area. I always suggest to a director he storyboard the shots as if it all existed. This avoids the effect shots being approached differently than the live action and avoids dwelling on a single effect.
Storyboard may seem to suppress the creatively of the scene but they're very important for a few reasons.
A single shot may require a number of departments to work together and prepare for the filming of the shots. With storyboards and concept art the director is able to easily communicate to everyone. A picture as they say is worth a thousand words. Without the boards each person would envision the shots differently.
For the visual effects crew we can't budget a shot until we see what the director sees. It's one thing in the script to set the action as a dogfight in space but it's critical to know the exact number of shots. The effects supervisor has to analyze every board and determine the technical process to create the final image. If an actor is framed one way that might require a bluescreen but if the shot is framed another way it may require rotoscoping or may be a simple split. A single shot may require a dozen different images or as we call the elements. There may need to be a section of a matte painting, a shot of the main actors on location, a shot of some extras against a blue screen, a model shot with motion control and a computer graphic creature all in one shot. Some of these elements may be shot or created over a span of a year so planning is critical. In a film such as star wars there about 2000 shots. Most shots average 5-8 seconds in length for budgeting purposes. In the old days. And I use the term old days to reference pre-digital effects; a large show was 200 shots.
Animatics
If a sequence is very complex, production may want to do animatics. These are essentially moving storyboards. They may be as simple as editing the storyboards together to check the flow and timings of the shots or may involve elaborate 3D models with animation. The storyboards do a good job of conveying the composition and basic action of the scene but moving images provide timing information and camera motion. At times we may videotape models by hand or do other types of mockups using clips from other references.
Both storyboards and animatics are used as a guide and starting point with the understanding that some of the shots will need to change when shooting based on the locations and the actors. It's important not to get too hung up on animatics. Because of their simple texturing they usually don't do a good job of conveying the sense of speed compared to a live action image projected onto a movie screen. It also becomes very easy to create shots you can't actually shoot due to the camera speed or other real world limitations. Some directors try to finesse the animatics in great detail which can make it that much more frustrating to them. They should be used just enough to convey the concept of the shot.
Once the boards are created then it's possible to create an accurate budget for the visual effects work. Budgeting is one of the most difficult tasks in effects work since there are still quite a few unknowns I usually gather the heads of the different departments and review the storyboards. Each department head provides their estimate for the amount of time they expect a shot to take for their discipline. Animation, matte painting, compositing, technical director, etc. Ideally they will bid it based on the performance of their average worker. It's easy to become optimistic when bidding about how quickly the work should be done and how the shots will all flow as planned. Reality and experience quickly temper this urge. Likewise if someone has had a bad experience they may pad their estimates. In either case these deviations from the target add up since there may be several hundred shots budgeted this way.
When reviewing the techniques to use it usually isn't a question of how to do an effect but which way is best for this particular film. Each technique has certain limits associated with it. I'll cover the details to this in another podcast.
As mentioned before it's also common for the studio to bid out the project to multiple effects houses so budget is always an issue. On larger shows the studio may end up dividing up the work among a few effects houses. When this is the case the film usually has an effects producer or coordinator assigned to it to oversee the project to make sure budgets and schedules from multiple effects houses are on target.
Most productions are done on a fixed bid that means that any overages are out of the effects company pocket unless the director requests changes or additions to the from the original planned shots. Part of the budgeting process is determining how much coverage is included for changes. Some places bid a bare minimum, which requires them to request, a change order from the production for additional charges even when a minor change has taken place. Most of the larger effects houses try to include enough funds to cover typical adjustment requests by the director.
The time is also a consideration when budgeting. If there isn't sufficient pre-production or postproduction time the crew may have to work overtime. In this business a 50-hour week is usually a minimum. Days are usually 10 to 12 hours long and a workweek can stretch to be 6 or even 7 days, especially toward the final completion of the project. At the end of Star Trek the motion Picture I worked 90, 12-hour days straight. Since the movie release date is locked at the moment it is greenlit it becomes an unchanging deadline. Obviously this will affect the budget.
You may have to do a fair bit of research and development to create the look the director is after and since this is an artistic endeavor with a different director on each project the amount of time it takes will sometimes be an unknown. One director may like the look of the shots very easily and another may dwell on some detail in a single shot at the expense of other shots.
During the pre-production phase the film departments are busy creating the sets, costumes and other items required for the shoot. On the visual effects side the R&D, research and development, is in process and tests are being shot if new techniques are required. Some of the models (both CG and physical models) can be constructed. Just a note here that CG refers to computer graphics. Visual effects artists usually use CG instead of CGI since it's shorter and not redundant.
We also use this time to work with the director of photography to make sure we're in sync with them. The film stock and shooting process will discussed since this could affect some of the approaches taken in post production.
As the date for shooting nears the visual effects supervisor goes on the tech scout with the other department heads. This may be reviewing the sets or flying to the locations where the film will be shot. The effects supervisor works closely with the director of photography, the practical effects supervisor and the stunt supervisor. Some revisions to budget and storyboards may need to be done once the tech scout is done.
Preproduction on your own
Even if you're doing the visual effects for your own miniDV movie it's important to take advantage of preproduction. It's best if you do a simple sketch or storyboard of your shots. This doesn't have to be anything fancy, it's just to help you review what you're planning to do. When you've sketched it out it's easy to spot some potential problems you might not have thought about.
You'll have to figure out what techniques will be required for each shot. If you haven't done much of this before it's best to keep it simple because a simple shot well done is better than a complex shot poorly done. In most cases a locked off camera will make the shot easier to do. This means use the camera on a tripod and don't move it.
Also consider doing what the professionals do during pre-production. Test. If you have a video camera then try to shoot a simple version of your shot with people filling in for the actors. Step through the process of the shot with this test footage so you're clear about how the technique works. You don't need to finish the shot but this can help figure out how to best shoot the images and how much work will be required in post production. It may not cost you in money but it's important to understand the amount of time required. By doing a test you'll also gain a bit more experience so that your skills will be better for the actual shots.
Well that wraps up today's podcast. Shooting the visual effects will be our next topic. Thank you.
Related post
Budgeting VFX
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