src/effects/vignette_effect.h


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// This file is part of the 64k demo project.
// It declares the VignetteEffect.

#pragma once

#include "gpu/effect.h"
#include "gpu/uniform_helper.h"

// Parameters for VignetteEffect
struct VignetteParams {
  float radius = 0.5f;   // Radius of the clear center
  float softness = 0.5f; // Softness of the vignette edge
};

class VignetteEffect : public PostProcessEffect {
 public:
  VignetteEffect(const GpuContext& ctx);
  VignetteEffect(const GpuContext& ctx, const VignetteParams& params);
  void render(WGPURenderPassEncoder pass,
              const CommonPostProcessUniforms& uniforms) override;
  void update_bind_group(WGPUTextureView input_view) override;

 private:
  VignetteParams params_;
  UniformBuffer<VignetteParams> params_buffer_;
};