87bdf96449
This commit renames all shader snippet files to conform to the newly introduced naming convention outlined in README.md. The new naming convention uses a `prefix_name.suffix` format to clearly indicate the purpose and target shader stage of each snippet. This improves the overall organization and readability of the shader code, making it easier to understand how each snippet contributes to the shader generation process. No functional changes were made to the shader code itself or source code. This is purely a refactoring for clarity and maintainability.
23 lines
909 B
GLSL
23 lines
909 B
GLSL
//------------------------------------------------------------------------------
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// Vignette
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//------------------------------------------------------------------------------
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// Applies a vignette effect
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// color: source color to apply the vignette on top of
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// uv: viewport coordinates
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// vignette: pre-computed parameters midPoint, radius, aspect and feather
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// vignetteColor: color of the vignette effect
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vec3 vignette(const vec3 color, const highp vec2 uv, const vec4 vignette, const vec4 vignetteColor) {
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float midPoint = vignette.x;
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float radius = vignette.y;
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float aspect = vignette.z;
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float feather = vignette.w;
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vec2 distance = abs(uv - 0.5) * midPoint;
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distance.x *= aspect;
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distance = pow(saturate(distance), vec2(radius));
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float amount = pow(saturate(1.0 - dot(distance, distance)), feather * 5.0);
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return color * mix(vignetteColor.rgb, vec3(1.0), amount);
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}
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