Why we need a real raytracer for lightmaps rendering

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illwieckz
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Re: Why we need a real raytracer for lightmaps rendering

Postby illwieckz » Fri Jun 23, 2017 6:16 pm UTC

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illwieckz
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Posts: 357
Joined: Sat Aug 11, 2012 7:22 pm UTC
Location: France
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Re: Why we need a real raytracer for lightmaps rendering

Postby illwieckz » Thu Jul 27, 2017 8:46 pm UTC

some experiments with nofast and lightsubdivision (see NetRadiant's MR !67:

Note: it's a cut-out of the map
Note: the dark line on ceiling is a known issue due to the geometry of this part (the original build already has this bug), I don't know how to workaround this properly yet.
Note: the light stage took hours for this room.
Note: light switches were: -lightsubdiv 100 -fastallocate -shade -dirty -patchshadows -randomsamples -samples 3 -samplesize 8 -bouncegrid -bounce 1 -deluxe -lightanglehl 1 -lightmapsize 1024 -external (more bounce can reduce and sometime remove the dark line effect on the middle of the ceiling, but it means adding days to compile time, so that's not a good solution)

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