OrdinaryMagician/vkdoom_m
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Bake probes on the GPU without downloading them to system memory

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Only apply probes after a full pass has completed
Stop baking after 5 iterations
This commit is contained in:
Magnus Norddahl 2025-07-10 01:03:30 +02:00
commit 7f77dc3d70
10 changed files with 393 additions and 164 deletions
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18
src/rendering/hwrenderer/hw_entrypoint.cpp
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@ -336,7 +336,7 @@ static void CheckTimer(FRenderState &state, uint64_t ShaderStartTime)
state.firstFrame = screen->FrameTime - 1;
}
LightProbeIncrementalBuilder lightProbeBuilder(DFrameBuffer::irrandiaceMapTexelCount, DFrameBuffer::prefilterMapTexelCount, DFrameBuffer::irradianceMapChannelCount, DFrameBuffer::prefilterMapChannelCount);
LightProbeIncrementalBuilder lightProbeBuilder;
sector_t* RenderView(player_t* player)
{
@ -413,30 +413,22 @@ sector_t* RenderView(player_t* player)
AActor* lightprobe = level.GetThinkerIterator<AActor>(NAME_LightProbe, STAT_INFO).Next();
if (lightprobe)
{
auto renderEnvMap = [&](const LightProbe& probe, TArrayView<uint16_t>& irradianceMap, TArrayView<uint16_t>& prefilteredMap) {
auto renderEnvMap = [&](int probeIndex, const LightProbe& probe) {
lightprobe->SetOrigin(DVector3(probe.position), false); // crime against nature
// The renderer interpolates camera in its own mechanism that has to be disabled when moving around the single probe
bool noInterpolate = r_NoInterpolate;
r_NoInterpolate = true;
screen->RenderEnvironmentMap([&](IntRect& bounds, int side) {
screen->RenderLightProbe(probeIndex, [&](IntRect& bounds, int side) {
FRenderViewpoint probevp;
RenderViewpoint(probevp, lightprobe, &bounds, 90.0, 1.0f, 1.0f, false, false, side);
}, irradianceMap, prefilteredMap);
});
r_NoInterpolate = noInterpolate;
};
auto renderEnvScreen = [&](const TArray<uint16_t>& irradianceMaps, const TArray<uint16_t>& prefilteredMaps) {
screen->UploadEnvironmentMaps(level.lightProbes.size(), irradianceMaps, prefilteredMaps);
};
lightProbeBuilder.Step(
level.lightProbes,
renderEnvMap,
renderEnvScreen
);
lightProbeBuilder.Step(level.lightProbes, renderEnvMap);
}
else
{