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Assorted fixes to UV unwrapping and GPU lightmapper

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Various fixes to UV2 unwrapping and the GPU lightmapper. Listed here for
context in case of git blame/bisect:

* Fix UV2 unwrapping on import, also cleaned up the unwrap cache code.
* Fix saving of RGBA images in EXR format.
* Fixes to the GPU lightmapper:
	- Added padding between atlas elements, avoids bleeding.
	- Remove old SDF generation code.
	- Fix baked attenuation for Omni/Spot lights.
	- Fix baking of material properties onto UV2 (wireframe was
	  wrongly used before).
	- Disable statically baked lights for objects that have a
	  lightmap texture to avoid applying the same light twice.
	- Fix lightmap pairing in RendererSceneCull.
	- Fix UV2 array generated from `RenderingServer::mesh_surface_get_arrays()`.
	- Port autoexposure fix for OIDN from 3.x.
	- Save debug textures as EXR when using floating point format.
This commit is contained in:
jfons
2021-04-25 23:36:39 +02:00
parent eb57dcdb90
commit 6995b0429c
21 changed files with 457 additions and 481 deletions
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2
servers/rendering/renderer_scene_cull.cpp
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@@ -2394,7 +2394,7 @@ void RendererSceneCull::_frustum_cull(CullData &cull_data, FrustumCullResult &cu
cull_result.gi_probes.push_back(RID::from_uint64(idata.instance_data_rid));
} else if (base_type == RS::INSTANCE_LIGHTMAP) {
cull_result.gi_probes.push_back(RID::from_uint64(idata.instance_data_rid));
cull_result.lightmaps.push_back(RID::from_uint64(idata.instance_data_rid));
} else if (((1 << base_type) & RS::INSTANCE_GEOMETRY_MASK) && !(idata.flags & InstanceData::FLAG_CAST_SHADOWS_ONLY)) {
bool keep = true;