I want to do ray marching rendering of interior volume and I need self
shadow .
I know that deep shadow is good for querying the shadow info .
I use an interior shader in my deep shadow generating rib file and also
I add the attribue of shading strategy .
The interior shader uses ray marching .
Then I use the same interior shader , strategy and the deep shadow
generated above .
But it just doesn't look like what I want !
when I check the deep shadow , I find the falloff of the shadow value
just is linear .
Please help me .
