[News] Voxel Cone Tracing

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madmarx
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Re: [News] Voxel Cone Tracing

Post by madmarx » Tue Aug 13, 2019 12:52 pm

Wow, this was an extremely interesting read.
Thanks a lot for all the details.
Best regards,
Pierre
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xrgo
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Re: [News] Voxel Cone Tracing

Post by xrgo » Thu Aug 15, 2019 8:26 pm

I am yet to test this, but do you think this will be usable in VR, with very high resolutions and frame rates? you mentioned that injecting the light is very fast... but its fast enough? is there any other way of baking the resulting GI in to static geometry?

thanks!!
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dark_sylinc
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Re: [News] Voxel Cone Tracing

Post by dark_sylinc » Thu Aug 15, 2019 9:15 pm

xrgo wrote:
Thu Aug 15, 2019 8:26 pm
you mentioned that injecting the light is very fast... but its fast enough?
Injecting light means updating the VCT data when the light setup changes (e.g. time of day changes, a lamp moves, etc)
xrgo wrote:
Thu Aug 15, 2019 8:26 pm
but its fast enough? is there any other way of baking the resulting GI in to static geometry?
For VR I don't think so. VCT as a whole may be a bit expensive.
If we remove the specular though, it may give you enough speed. But better wait for DDGI, which while it may offer slightly lower quality, it should give much better diffuse GI performance.

Regarding baking the GI... YES! We already have a sample showing how to bake rendering into textures.
Though managing all the meshes and material changes can get complex (and ensure the materials have UV prepared for baking)
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