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// This file is part of the 64k demo project.
// It defines the CircleMaskEffect class for masking system demonstration.
// Creates a circular mask and renders green outside the circle.
#ifndef CIRCLE_MASK_EFFECT_H_
#define CIRCLE_MASK_EFFECT_H_
#include "gpu/effect.h"
#include "gpu/uniform_helper.h"
class CircleMaskEffect : public Effect {
public:
CircleMaskEffect(const GpuContext& ctx, float radius = 0.4f);
~CircleMaskEffect() override;
void init(MainSequence* demo) override;
void compute(WGPUCommandEncoder encoder, float time, float beat,
float intensity, float aspect_ratio) override;
void render(WGPURenderPassEncoder pass, float time, float beat,
float intensity, float aspect_ratio) override;
private:
struct ComputeUniforms {
float radius;
float aspect_ratio;
float width;
float height;
};
struct RenderUniforms {
float width;
float height;
float _pad1;
float _pad2;
};
MainSequence* demo_ = nullptr;
float radius_;
WGPURenderPipeline compute_pipeline_ = nullptr;
WGPUBindGroup compute_bind_group_ = nullptr;
UniformBuffer<ComputeUniforms> compute_uniforms_;
WGPURenderPipeline render_pipeline_ = nullptr;
WGPUBindGroup render_bind_group_ = nullptr;
WGPUSampler mask_sampler_ = nullptr;
UniformBuffer<RenderUniforms> render_uniforms_;
};
#endif /* CIRCLE_MASK_EFFECT_H_ */
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