volume hdri depth map shadows
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danilo2
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2010年5月14日 12:22
Hi!
Is there a method to render volumes (smoke, clouds etc) with hdri lighting and depth map shadows?
When I use enviroment light with hdri and set depth map shadows I'm getting white smoke without shadows
And raytracing is very very slow for smoke
2010年5月14日 18:33
Use a spot light or a directional light for the shadow casting part. rob
Gone fishing
2010年5月14日 19:02
raytracing is always really slow with smoke (and a few other things), but you can turn down the ray samples in the Mantra ROP, as well as the volume step size, as a temporary fix.
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danilo2
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2010年5月15日 11:35
Thank you!
circusmonkey - thank you for this solution
The only problem is that when I would really get effect like with real hdri shadows I have to use VERY large number of lights
old_school
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2010年5月16日 7:05
Try experimenting with the Bake Volume SOP to scatter light in the volume.
There's at least one school like the old school!
danilo2
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2010年5月16日 15:34
Hi!
thank you jeff!
Is it possible to use Bake Volume Sop to bake hdri colors on a cloud?
(I cannotfind usage like this in thissop
)
2010年5月16日 17:56
The only problem is that when I would really get effect like with real hdri shadows I have to use VERY large number of lights volumes dont get shadow information from env lights.
rob
Gone fishing