EyeonTips:Manual/Fusion 6/Camera 3D

From VFXPedia

• When importing a camera from a 3D application that will also be used as a projector, make sure that the Fit Resolution Gate options on the main Controls tab as well as the Projection tab are in sync. Only the first one will automatically be set to what the 3D app was using. The latter might have to be adjusted manually.

• The camera's image plane isn't just a virtual guide for you in the viewers. It's actual geometry that you can also project onto. You need to use a Replace Material tool after your camera node. See Eric's example comp over at PigsFly or this YouTube video.

• New projection options available since Fusion 6.1:
  • The Projector ID can be used to restrict the Catcher tool to certain projectors. The ID doesn't have to be unique amongst all Projector3D or Camera3D tools in your scene.
  • The Projector Priority allows you to merge multiple projections on top of each other like 2D images with alpha channels. Set the Catcher's accumulation mode to Blend and define different priorities for each projection. Higher priorities are considered on top of projections that have lower priorities.

• In Fusion 6.1, "parallel" stereo mode assume "Off-axis" in clever stereoscopic terms.
  So, to achieve real parallel stereo mode you can:
  recipe 1) connect additional external(right) camera to "Right Stereo Camera" input of your camera.
  recipe 2) create separate left and right cameras
  recipe 3) as workaround you can pull faar-faar away ConvergenceDistance value, something like ConvergenceDistance = 9999999999.
  

• Try to avoid animate camera AngleOfView parameter. Good idea animate FocalLenght instead AoV, becouse in practice i get unstable behaviour of Fusion, when i use expressions, that operate with camera focalLenght on camera that has AoV animation . Actually may be more general advice is connect your expressions to actual input, that have animation.

Rendering with overscan from Fusion's 3D space (Last Updated: March 19th, 2011)

If you want to render an image with overscan you also have to modify your scene's Camera3D. Since overscan settings aren't exported along with camera data from 3D applications, this is also necessary for cameras you've imported via .fbx or .ma files. The solution is to increase the film back's width and height by the factor necessary to account for extra pixels on each side. This annotated comp explains the process.
Fusion 7 introduces options to the Renderer3D that allow you to render overscan - either inside the image area or as overscan DoD

I Am Fusion - Projection Tutorial This video shows how to align and layer projections using multiple cameras. Watch it on YouTube.