Baking volume occlusion?
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Hey everyone !
So , have stumbled upon this article lately and got lreally interested in the following technique ( page 77-78):
"For lighting the smoke we didn’t want to pre-bake a single direction as is done in this example... besides not matching the real lighting conditions.... this would also not allow us to rotate the particle to create more variations...
We would light our smoke from diferent directions and combine the results into 2 RGB textures and do a diference.
So we would light it from :
- the right - top - front
- combine the results into RGB then repeat with opposite lighting:
- left - bottom - back
- combine results
- do a diference on the 2
- convert to black and white And this gives us a fairly nice evenly lit ambient occlusion type of look
"
So the question is , how do i "combine" those in terms of composition modes , i mean if it's implemented artisticly...ok , i can just tweak transparencies and get kind of desired look but...maybe it's a well known trick and i just missing smth.
Any tips are greatly appreciated!
So , have stumbled upon this article lately and got lreally interested in the following technique ( page 77-78):
"For lighting the smoke we didn’t want to pre-bake a single direction as is done in this example... besides not matching the real lighting conditions.... this would also not allow us to rotate the particle to create more variations...
We would light our smoke from diferent directions and combine the results into 2 RGB textures and do a diference.
So we would light it from :
- the right - top - front
- combine the results into RGB then repeat with opposite lighting:
- left - bottom - back
- combine results
- do a diference on the 2
- convert to black and white And this gives us a fairly nice evenly lit ambient occlusion type of look
"
So the question is , how do i "combine" those in terms of composition modes , i mean if it's implemented artisticly...ok , i can just tweak transparencies and get kind of desired look but...maybe it's a well known trick and i just missing smth.
Any tips are greatly appreciated!
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