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-rw-r--r--src/shaders/gaussian_blur.wgsl32
1 files changed, 32 insertions, 0 deletions
diff --git a/src/shaders/gaussian_blur.wgsl b/src/shaders/gaussian_blur.wgsl
new file mode 100644
index 0000000..7f85719
--- /dev/null
+++ b/src/shaders/gaussian_blur.wgsl
@@ -0,0 +1,32 @@
+// Gaussian blur shader for Sequence v2
+#include "sequence_uniforms"
+#include "render/fullscreen_uv_vs" // <- VertexOutput + vs_main
+
+@group(0) @binding(0) var input_sampler: sampler;
+@group(0) @binding(1) var input_texture: texture_2d<f32>;
+@group(0) @binding(2) var<uniform> uniforms: UniformsSequenceParams;
+
+struct GaussianBlurParams {
+ direction: vec2f,
+ radius: f32,
+ _pad: f32,
+};
+@group(0) @binding(3) var<uniform> params: GaussianBlurParams;
+
+@fragment fn fs_main(in: VertexOutput) -> @location(0) vec4f {
+ let texel_size = 1.0 / uniforms.resolution;
+ let offset = params.direction * texel_size;
+
+ var color = vec4f(0.0);
+ let kernel_size = i32(params.radius);
+ var weight_sum = 0.0;
+
+ for (var i = -kernel_size; i <= kernel_size; i++) {
+ let sample_offset = f32(i) * offset;
+ let weight = exp(-f32(i * i) / (2.0 * params.radius * params.radius));
+ color += textureSample(input_texture, input_sampler, in.uv + sample_offset) * weight;
+ weight_sum += weight;
+ }
+
+ return color / weight_sum;
+}