Hello all,
Is there a way to get a shadow pass of the shadows cast by PRT objects on other prt loaders? I have a few PRT objects in a scene that make up a character. I would like to render the PRT’S separately but then reduce the render the particle count and render them all together just to get a shadow pass. Is this possible or a good idea?
Thanks
Depends on your setup. You can save out the shadows to an EXR file, using the same technique as you would when rendering shadows for another renderer.
Hmm when I am in krakatoa I dont get the option to add a shadow gbuffer or element in the exr channel list is this what you meant?
I’m not entirely clear on what you consider a shadow pass to be. If you want a render from the perspective of the lights that records a depthmap and attenuation samples you can try the Krakatoa Shadows generator in the light’s shadow type list. It will let you specify a location to save the shadow information at render time. You can read about that here: thinkboxsoftware.com/krak-shadows-generator/
If you want some sort of render element that produces an image that somehow indicates shadow information, Krakatoa doesn’t have any built in.
Do you have any examples of what you want?
Hi,
I wanted to be able to extract the shadows that are being cast by the prt loaders onto each other so like a render element. I guess that answers my question. I wanted to do this
but I think its betters to just render them together and render out mattes to do the adjustments.
Thanks
Oh, that’s not difficult at all, just render with and without shadows and use the difference as your shadow pass.
thanks for the tip. 