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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_rd/renderer_scene_render_rd.cpp
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@@ -2554,6 +2554,7 @@ void RendererSceneRenderRD::_setup_lights(const PagedArray<RID> &p_lights, const
light_data.soft_shadow_scale = storage->light_get_param(base, RS::LIGHT_PARAM_SHADOW_BLUR);
light_data.softshadow_angle = angular_diameter;
light_data.bake_mode = storage->light_get_bake_mode(base);
if (angular_diameter <= 0.0) {
light_data.soft_shadow_scale *= directional_shadow_quality_radius_get(); // Only use quality radius for PCF
@@ -2621,6 +2622,7 @@ void RendererSceneRenderRD::_setup_lights(const PagedArray<RID> &p_lights, const
light_data.color[1] = linear_col.g * energy;
light_data.color[2] = linear_col.b * energy;
light_data.specular_amount = storage->light_get_param(base, RS::LIGHT_PARAM_SPECULAR) * 2.0;
light_data.bake_mode = storage->light_get_bake_mode(base);
float radius = MAX(0.001, storage->light_get_param(base, RS::LIGHT_PARAM_RANGE));
light_data.inv_radius = 1.0 / radius;