Previs, Postvis and Techvis

postvis

postvis is called post visualization, it is used to quickly preview digitally material combine with the filmed material shoot in an editorial. A CG film’s production process will be plate-postvis-final.

in the editorial, postvis will show the story in the void as much as possible. computer graphic will add it to the live-action photography, the plate can be merge together and the rig and wire can be moved. director, editor, and producers and evaluate what has been filmed and shape the material to represent the essence of the shot they are looking for. that will make the production of the shot more efficient.

the shot work on postvis including the shot with empty blue and green screen. postvis can be used to demonstrate how multiple passes of action, such as actors photographed in the different plates will merge together in a single shot.

In this time new shot or scene to portray the CG world or scene can be craft during this moment, postvis can portray CG action that needs to surround or tie into a character. Digital double or stunt can also be roughed out. Entirely CG character postvis can depict these key assets playing dynamic across the shots. anything important can be visualized.

During postvis, artist skill in composting, match moving, and 3d animation merge or augment the raw live-action with computer graphic imagery, set extension, or other plates photography.

plates are selected by editorial are tracked and previously developed material is added to create a preview of the collective imagery. and it is done of the quality and turn around the defined of the production. postvis artist may upgrade the look of animation or something already existing. Or they might visualize a totally new shot.

Once the creative is happy with the postvis, the shot will turn to the final animation and composting. postvis can be used for visual effect budgeting and bidding, for the high stakes and tight schedule, postvis is increasingly important to everyone.

Previs

Previs is aimed at being able to realize the best creative ideas most effectively. Previs artists and editors model and 3D-animate digital versions of the action so that a director can see and test concepts quickly, determine how best to tell the story, and make the most of their time on set. They can also work out potential camera angles and edits, and discover what coverage they might need.

Techvis

Techvis is the technical documentation of previs and postvis. it technically transforms the 3d world into the format that can be used for the onset department. it helps things make beautiful and practical and grounding to real-world physics.