Does Motion 3 render "intelligently?" at DVinfo.net

Josh Bass · August 12th, 2012, 07:23 PM

Here's an oddball question:

Does Motion 3 render as it SHOULD, that is, only what's in the frame/camera view in a given frame, or does it render EVERYTHING, even stuff outside the frame/camera view (i.e. that which a viewer would never see), even though it throws it away afterward.

In other words, do I need to keyframe visibility of layers when they're outside the frame/camera view to keep them from rendering?

Why would I have something outside the frame? Using 3D camera to scroll past a background, for instance.

Les Wilson · August 12th, 2012, 09:48 PM

I can't speak to the specific of Motion but in general, 3D drawing packages have a well defined drawing pipeline that takes the internal graphical model and turns it into a 2D rendering. The rendering pipeline includes the window. While internally, the model is drawn in a large 3D "world", when that world is mapped onto the 2D window, anything that's outside the window is thrown away.

August 12th, 2012, 07:23 PM	#1
Josh Bass Slash Rules! Join Date: Apr 2002 Location: Houston, Texas Posts: 5,472	Does Motion 3 render "intelligently?" Here's an oddball question: Does Motion 3 render as it SHOULD, that is, only what's in the frame/camera view in a given frame, or does it render EVERYTHING, even stuff outside the frame/camera view (i.e. that which a viewer would never see), even though it throws it away afterward. In other words, do I need to keyframe visibility of layers when they're outside the frame/camera view to keep them from rendering? Why would I have something outside the frame? Using 3D camera to scroll past a background, for instance. __________________ The Bass' camerawork The Bass on IMDB

August 12th, 2012, 09:48 PM	#2
Les Wilson Inner Circle Join Date: Jan 2004 Location: Boca Raton, FL Posts: 3,014	Re: Does Motion 3 render "intelligently?" I can't speak to the specific of Motion but in general, 3D drawing packages have a well defined drawing pipeline that takes the internal graphical model and turns it into a 2D rendering. The rendering pipeline includes the window. While internally, the model is drawn in a large 3D "world", when that world is mapped onto the 2D window, anything that's outside the window is thrown away.