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# Objective `bevy_pbr/utils.wgsl` shader file contains mathematical constants and color conversion functions. Both of those should be accessible without enabling `bevy_pbr` feature. For example, tonemapping can be done in non pbr scenario, and it uses color conversion functions. Fixes #13207 ## Solution * Move mathematical constants (such as PI, E) from `bevy_pbr/src/render/utils.wgsl` into `bevy_render/src/maths.wgsl` * Move color conversion functions from `bevy_pbr/src/render/utils.wgsl` into new file `bevy_render/src/color_operations.wgsl` ## Testing Ran multiple examples, checked they are working: * tonemapping * color_grading * 3d_scene * animated_material * deferred_rendering * 3d_shapes * fog * irradiance_volumes * meshlet * parallax_mapping * pbr * reflection_probes * shadow_biases * 2d_gizmos * light_gizmos --- ## Changelog * Moved mathematical constants (such as PI, E) from `bevy_pbr/src/render/utils.wgsl` into `bevy_render/src/maths.wgsl` * Moved color conversion functions from `bevy_pbr/src/render/utils.wgsl` into new file `bevy_render/src/color_operations.wgsl` ## Migration Guide In user's shader code replace usage of mathematical constants from `bevy_pbr::utils` to the usage of the same constants from `bevy_render::maths`. |
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