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Separate PBR and tone mapping into 2 functions (#5078)
# Objective - Allow custom shaders to reuse the HDR results of PBR. ## Solution - Separate `pbr()` and `tone_mapping()` into 2 functions in `pbr_functions.wgsl`.
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2 changed files with 7 additions and 4 deletions
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@ -85,7 +85,7 @@ fn fragment(in: FragmentInput) -> [[location(0)]] vec4<f32> {
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);
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pbr_input.V = calculate_view(in.world_position, pbr_input.is_orthographic);
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output_color = pbr(pbr_input);
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output_color = tone_mapping(pbr(pbr_input));
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}
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return output_color;
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@ -186,11 +186,14 @@ fn pbr(
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cluster_index,
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);
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return output_color;
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}
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fn tone_mapping(in: vec4<f32>) -> vec4<f32> {
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// tone_mapping
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output_color = vec4<f32>(reinhard_luminance(output_color.rgb), output_color.a);
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return vec4<f32>(reinhard_luminance(in.rgb), in.a);
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// Gamma correction.
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// Not needed with sRGB buffer
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// output_color.rgb = pow(output_color.rgb, vec3(1.0 / 2.2));
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return output_color;
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}
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