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// This file is part of the 64k demo project.
// It declares the GaussianBlurEffect.
#pragma once
#include "gpu/effect.h"
#include "gpu/uniform_helper.h"
// Parameters for GaussianBlurEffect (set at construction time)
struct GaussianBlurParams {
float strength = 1.0f; // Default
float strength_audio = 0.5f; // how much to pulse with audio
float stretch = 1.f; // y/x axis ratio
float _pad = 0.;
};
static_assert(sizeof(GaussianBlurParams) == 16,
"GaussianBlurParams must be 16 bytes for WGSL alignment");
class GaussianBlurEffect : public PostProcessEffect {
public:
// Backward compatibility constructor (uses default params)
GaussianBlurEffect(const GpuContext& ctx);
// New parameterized constructor
GaussianBlurEffect(const GpuContext& ctx, const GaussianBlurParams& params);
void render(WGPURenderPassEncoder pass,
const CommonPostProcessUniforms& uniforms) override;
void update_bind_group(WGPUTextureView input_view) override;
private:
GaussianBlurParams params_;
UniformBuffer<GaussianBlurParams> params_buffer_;
};
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