3DS MAX: 3ds Max Forum 3ds Max Tutorials

Object Transparency w/Mental Ray

COW Forums : Autodesk 3ds Max

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Nicholas SmithObject Transparency w/Mental Ray
by on Apr 17, 2011 at 4:41:42 pm

I tracked some footage for a client using Boujou, and rendered it out into an AVI format. The camera solve works fine in Max. I added an bitmap parameter for the environment so it would render out the AVI with the object in it. The problem I am having is that it seems that whenever I add an object to a scene and render it out that the object's opacity has significantly decreased. I am using the default mental ray parameters and haven't changed a thing.

Any help with this?

Image: http://img546.imageshack.us/i/problemaa.jpg/

VFX and 3D Designer CGM Studios
Sheridan College Student

Return to posts index

Ryan JohnRe: Object Transparency w/Mental Ray
by on Apr 17, 2011 at 6:06:35 pm

Im not clear to what is happening or why... but I would suggest moving away from AVI's and instead render out image sequences with alpha channels(TIF, TGA, PNG) and then compositing the layers in post production software(After effects!) that way you have a lot more control and its a lot easier to fix any problems like the above. (you simply duplicate the 3D render and tweak the opacity of the lower layer to control opacity levels of all transparent areas)

Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2016 CreativeCOW.net All Rights Reserved