Why the Best VFX Decisions Happen Before You Shoot
Could this idea be done practically, digitally, or with a little of both? It is a deceptively important question—and one that is much easier to answer before a crew is on set, the light is changing and the camera is already moving. Visual effects are often thought of as a post-production task. But the choices that make a shot possible, believable and efficient are made much earlier. VFX planning before filming is not about locking every creative decision too soon. It is about spotting the decisions that affect what must be captured, and giving the creative idea a workable route from script to screen. For a commercial, that can mean protecting a single ambitious image, shaping a camera move around the effect, or deciding that a real object will look better than a digital one. Start early and the craft can support the idea. Leave it until later and the team may be trying to solve a production problem with post-production alone.
Find the VFX question in development
Begin with the image, not the software. What does the audience need to see? What must feel real? Which parts of the frame are essential to the idea, and which can be suggested, removed or created later? Those questions help identify whether a visual moment calls for a practical build, a digital addition, an alteration to live action, or a hybrid approach. There is no automatic winner. A physical element may provide natural interaction and texture; a digital one may offer greater control over scale, shape or timing. Combining the two can be the clearest route when each does what it is best suited to do. This is a creative decision as much as a technical one. Bring the director, producer and VFX thinking together while the treatment and production approach are still taking shape. The earlier the options are visible, the more room there is to choose deliberately.
Camera movement affects what can be tracked and how elements will sit together in a shot. A fast move, a long lens, a changing focus or a camera that cannot repeat its path may all alter the level of difficulty. That does not make a particular style of movement off limits. It means the team should understand the consequences before committing to it. Ask what the camera needs to do for the story, then discuss how the effect can work with that choice. If a shot needs tracking markers, decide where they can go without distracting from the performance or appearing in reflective surfaces. Plan how they will be removed, and check that the set, costume or props will not make them hard to distinguish. Marker placement should be agreed with the relevant crew rather than improvised once the shot is underway.
Digital elements have to belong in the photographed scene. Direction, softness and colour of light all influence whether they feel present in the same space as the action. If a practical effect or stand-in will be on set, consider how it will receive light and cast shadows. If an element will be added later, capture enough visual information for the post team to understand the conditions it must match. A clean plate—a version of the shot without a performer or other temporary element—can be useful when something needs to be removed or replaced. But it only helps if it is planned and photographed appropriately. Keep the camera position, framing and relevant lighting consistent, and record which take is the clean plate. The production team should agree what is required for each effect rather than assuming a spare take will always solve the problem.
Make a practical-versus-digital call
A useful test is to compare the creative result, not just the apparent cost of each option. Consider what the audience needs to believe, how the subject interacts with the environment, what must remain controllable on set and what can be refined later. Include the time and effort required to prepare, capture and finish the work - not just the visible production choice. Some questions to take into the conversation:
• What is the one detail that will make the image convincing?
• Does the performance depend on a real object or physical reaction?
• What must the camera see, and what can be created or changed later?
• Which reference, plate or set information will post need?
• Who is responsible for checking that the planned material is captured?
The answers do not need to eliminate every unknown. They should make the important trade-offs explicit and give the crew a shared understanding of what the shot requires.
Bring the idea through to the finish
Good planning does not make a film less imaginative. It gives ambitious work a stronger foundation: a visual idea the team can discuss, a production plan shaped around it, and post-production that has the material it needs.
Planning a commercial with a visual-effects element? Talk to Conker Cuts while the creative and production choices are still open.
