Fix T96502: Compilation error OCIO when using GradingPrimaryTransform.
When using GradingPrimaryTransform the generated GLSL code fails to compile. The actual issue is inside OCIO (https://github.com/AcademySoftwareFoundation/OpenColorIO/issues/1603). The reason is that unset clamping values are rendered out as `inf`, which isn't recognizable by GLSL. The issue is worked around by defining a default for `inf`. Reviewed By: brecht Maniphest Tasks: T96502 Differential Revision: https://developer.blender.org/D14425
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@ -192,6 +192,11 @@ static bool createGPUShader(OCIO_GPUShader &shader,
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info.fragment_source("gpu_shader_display_transform_frag.glsl");
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info.fragment_source_generated = source;
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/* T96502: Work around for incorrect OCIO GLSL code generation when using
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* GradingPrimaryTransform. Should be reevaluated when changing to a next version of OCIO.
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* (currently v2.1.1). */
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info.define("inf 1e32");
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if (use_curve_mapping) {
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info.define("USE_CURVE_MAPPING");
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info.uniform_buf(UNIFORMBUF_SLOT_CURVEMAP, "OCIO_GPUCurveMappingParameters", "curve_mapping");
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