Realtime GI - Voxel cone tracing
Recently Ive been researching realtime GI techniques like Light
Propagation Volumes, Reflective Shadow Mapping, Imperfect Shadow Mapping
etc. But the one that really caught my attention was of course Sparse
Octree Voxel Cone Tracing. It has it all : GI, approximated specular
reflections, can be easily integrated into deferred rendering pipeline,
has no noise, doesnt rely on polygonal heaviness of the models being
involved into calculations/ The one thing that really bothers me is
transparency. How does one achieve proper illumination of semi-transparent
voxels? (like coloured glass or semi-transparent curtains)?
Is it possible? Any ideas? Thank you!
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