Introduction to Maya - Rendering in Arnold
This course will look at the fundamentals of rendering in Arnold. We'll go through the different light types available, cameras, shaders, Arnold's render settings and finally how to split an image into render passes (AOV's), before we then reassemble it i
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1
25-08-2011
, 12:35 PM
Subscriber
Join Date: Feb 2011
Join Date: Feb 2011
Posts: 42
No alpha present in batch render!
I have cut my scene down to the basic elements, a plane with 'use background' shader, a light and a sphere. i can hit render current frame, and on the alpha channel i can see my shadow. however when i batch render, the alpha channel has gone.
Ive tried all sorts to isolate my problem. i had it all working fine before but not sure where i went wrong.
i know this is a little vague but does is sound familiar to anyone. using tiffs/alpha checked under cam setting
if anyone can shed light on this, i would be very grateful
j
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2
25-08-2011
, 02:04 PM
Technical Director
Join Date: Feb 2004
Join Date: Feb 2004
Posts: 2,988
When this happens, and you need the renders right away, you can run my script here, which will render a batch out of the render window.
https://simplymaya.com/forum/showpost...7&postcount=23
Just change the following to what you want.
Code:
string $filename = "render"; int $startFrame = 3; int $endFrame = 24; int $nFramePadLength = 4; // eg name.0000.ext (4 zeros)
Imagination is more important than knowledge.
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3
25-08-2011
, 06:09 PM
Subscriber
Join Date: Feb 2011
Join Date: Feb 2011
Posts: 42
This has been bugging me all day, the issue is with the render layer called shadow_floor. i started from scratch checking my renders in nuke and all was fine, and then it happened again, round about the time i was changing the texture of the main object to include some self illumination.
there aren't any linked assets of importance.
thanks in advance
j