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-rw-r--r--src/gpu/camera_params.h18
-rw-r--r--src/gpu/demo_effects.h203
-rw-r--r--src/gpu/sdf_effect.h53
-rw-r--r--src/gpu/shaders.cc5
-rw-r--r--src/gpu/shaders.h1
5 files changed, 109 insertions, 171 deletions
diff --git a/src/gpu/camera_params.h b/src/gpu/camera_params.h
new file mode 100644
index 0000000..361f65f
--- /dev/null
+++ b/src/gpu/camera_params.h
@@ -0,0 +1,18 @@
+// This file is part of the 64k demo project.
+// It defines CameraParams for raymarching effects.
+
+#pragma once
+
+#include "util/mini_math.h"
+
+// Camera parameters for SDF raymarching effects
+// Binding convention: @group(0) @binding(3)
+struct CameraParams {
+ mat4 inv_view; // Inverse view matrix (screen→world transform)
+ float fov; // Vertical field of view in radians
+ float near_plane; // Near clipping plane
+ float far_plane; // Far clipping plane
+ float aspect_ratio; // Width/height ratio
+};
+static_assert(sizeof(CameraParams) == 80,
+ "CameraParams must be 80 bytes for WGSL alignment");
diff --git a/src/gpu/demo_effects.h b/src/gpu/demo_effects.h
index 72c8e6e..85498ad 100644
--- a/src/gpu/demo_effects.h
+++ b/src/gpu/demo_effects.h
@@ -1,192 +1,53 @@
// This file is part of the 64k demo project.
-// It declares the concrete effects used in the demo.
+// It includes all concrete effects used in the demo.
#pragma once
+
+// Core 3D
#include "3d/camera.h"
#include "3d/renderer.h"
#include "3d/scene.h"
+
+// Base effect classes
#include "effect.h"
-#include "effects/circle_mask_effect.h"
-#include "effects/fade_effect.h" // FadeEffect with full definition
-#include "effects/flash_cube_effect.h"
-#include "effects/flash_effect.h" // FlashEffect with params support
-#include "effects/hybrid_3d_effect.h"
-#include "effects/rotating_cube_effect.h"
-#include "effects/scene1_effect.h"
-#include "effects/theme_modulation_effect.h" // ThemeModulationEffect with full definition
-#include "gpu/gpu.h"
#include "gpu/post_process_helper.h"
#include "gpu/shaders.h"
#include "gpu/texture_manager.h"
#include "gpu/uniform_helper.h"
-#include <memory>
-
-static const int NUM_PARTICLES = 10000;
-
-struct Particle {
- float pos[4];
- float vel[4];
- float rot[4];
- float color[4];
-};
-
-class HeptagonEffect : public Effect {
- public:
- HeptagonEffect(const GpuContext& ctx);
- void render(WGPURenderPassEncoder pass,
- const CommonPostProcessUniforms& uniforms) override;
-
- private:
- RenderPass pass_;
-};
-
-class ParticlesEffect : public Effect {
- public:
- ParticlesEffect(const GpuContext& ctx);
- void compute(WGPUCommandEncoder encoder,
- const CommonPostProcessUniforms& uniforms) override;
- void render(WGPURenderPassEncoder pass,
- const CommonPostProcessUniforms& uniforms) override;
-
- private:
- ComputePass compute_pass_;
- RenderPass render_pass_;
- GpuBuffer particles_buffer_;
-};
-
-class PassthroughEffect : public PostProcessEffect {
- public:
- PassthroughEffect(const GpuContext& ctx);
- void update_bind_group(WGPUTextureView input_view) override;
-
- private:
-};
-
-class MovingEllipseEffect : public Effect {
- public:
- MovingEllipseEffect(const GpuContext& ctx);
- void render(WGPURenderPassEncoder pass,
- const CommonPostProcessUniforms& uniforms) override;
-
- private:
- RenderPass pass_;
-};
-
-class ParticleSprayEffect : public Effect {
- public:
- ParticleSprayEffect(const GpuContext& ctx);
- void compute(WGPUCommandEncoder encoder,
- const CommonPostProcessUniforms& uniforms) override;
- void render(WGPURenderPassEncoder pass,
- const CommonPostProcessUniforms& uniforms) override;
- private:
- ComputePass compute_pass_;
- RenderPass render_pass_;
- GpuBuffer particles_buffer_;
-};
-
-// 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_;
-};
-
-class SolarizeEffect : public PostProcessEffect {
- public:
- SolarizeEffect(const GpuContext& ctx);
- void render(WGPURenderPassEncoder pass,
- const CommonPostProcessUniforms& uniforms) override;
- void update_bind_group(WGPUTextureView input_view) override;
-
- private:
-};
-
-// 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_;
-};
+// Individual Effect Headers
+#include "effects/chroma_aberration_effect.h"
+#include "effects/circle_mask_effect.h"
+#include "effects/cnn_effect.h"
+#include "effects/cnn_v2_effect.h"
+#include "effects/distort_effect.h"
+#include "effects/fade_effect.h"
+#include "effects/flash_cube_effect.h"
+#include "effects/flash_effect.h"
+#include "effects/gaussian_blur_effect.h"
+#include "effects/heptagon_effect.h"
+#include "effects/hybrid_3d_effect.h"
+#include "effects/moving_ellipse_effect.h"
+#include "effects/particle_spray_effect.h"
+#include "effects/particles_effect.h"
+#include "effects/passthrough_effect.h"
+#include "effects/rotating_cube_effect.h"
+#include "effects/scene1_effect.h"
+#include "effects/sdf_test_effect.h"
+#include "effects/solarize_effect.h"
+#include "effects/theme_modulation_effect.h"
+#include "effects/vignette_effect.h"
-// Parameters for ChromaAberrationEffect (set at construction time)
-struct ChromaAberrationParams {
- float offset_scale = 0.02f; // Default: 2% screen offset
- float angle = 0.0f; // Default: horizontal (0 radians)
-};
+#include <memory>
-class ChromaAberrationEffect : public PostProcessEffect {
- public:
- // Backward compatibility constructor (uses default params)
- ChromaAberrationEffect(const GpuContext& ctx);
- // New parameterized constructor
- ChromaAberrationEffect(const GpuContext& ctx,
- const ChromaAberrationParams& params);
- void render(WGPURenderPassEncoder pass,
- const CommonPostProcessUniforms& uniforms) override;
- void update_bind_group(WGPUTextureView input_view) override;
- private:
- ChromaAberrationParams params_;
- UniformBuffer<ChromaAberrationParams> params_buffer_;
-};
-// Parameters for DistortEffect
-struct DistortParams {
- float strength = 0.01f; // Default distortion strength
- float speed = 1.0f; // Default distortion speed
-};
-static_assert(sizeof(DistortParams) == 8,
- "DistortParams must be 8 bytes for WGSL alignment");
+// Common particle definition is now in effects/particle_defs.h
-class DistortEffect : public PostProcessEffect {
- public:
- DistortEffect(const GpuContext& ctx);
- DistortEffect(const GpuContext& ctx, const DistortParams& params);
- void render(WGPURenderPassEncoder pass,
- const CommonPostProcessUniforms& uniforms) override;
- void update_bind_group(WGPUTextureView input_view) override;
- private:
- DistortParams params_;
- UniformBuffer<DistortParams> params_buffer_;
-};
-#include "effects/cnn_effect.h"
-#include "effects/cnn_v2_effect.h"
+// Auto-generated functions from sequence compiler
-// Auto-generated functions
void LoadTimeline(MainSequence& main_seq, const GpuContext& ctx);
-float GetDemoDuration(); // Returns demo end time in seconds, or -1 if not
- // specified \ No newline at end of file
+
+float GetDemoDuration();
diff --git a/src/gpu/sdf_effect.h b/src/gpu/sdf_effect.h
new file mode 100644
index 0000000..4f23604
--- /dev/null
+++ b/src/gpu/sdf_effect.h
@@ -0,0 +1,53 @@
+// This file is part of the 64k demo project.
+// It defines SDFEffect base class for raymarching effects.
+
+#pragma once
+
+#include "3d/camera.h"
+#include "gpu/camera_params.h"
+#include "gpu/effect.h"
+#include "gpu/uniform_helper.h"
+
+// Base class for SDF raymarching effects
+// Provides CameraParams uniform buffer and helper methods
+//
+// Binding convention:
+// @group(0) @binding(2): CommonPostProcessUniforms (from Effect base)
+// @group(0) @binding(3): CameraParams
+// @group(0) @binding(4+): Per-effect custom parameters
+class SDFEffect : public Effect {
+ public:
+ SDFEffect(const GpuContext& ctx) : Effect(ctx) {
+ camera_params_.init(ctx.device);
+ }
+
+ virtual ~SDFEffect() = default;
+
+ // Populate camera parameters from Camera object
+ void update_camera(const Camera& camera, float aspect_ratio) {
+ CameraParams params;
+ params.inv_view = camera.get_view_matrix().inverse();
+ params.fov = camera.fov_y_rad;
+ params.near_plane = camera.near_plane;
+ params.far_plane = camera.far_plane;
+ params.aspect_ratio = aspect_ratio;
+ camera_params_.update(ctx_.queue, params);
+ }
+
+ // Populate camera parameters with custom values
+ void update_camera(const vec3& position, const vec3& target, const vec3& up,
+ float fov, float near_plane, float far_plane,
+ float aspect_ratio) {
+ mat4 view = mat4::look_at(position, target, up);
+ CameraParams params;
+ params.inv_view = view.inverse();
+ params.fov = fov;
+ params.near_plane = near_plane;
+ params.far_plane = far_plane;
+ params.aspect_ratio = aspect_ratio;
+ camera_params_.update(ctx_.queue, params);
+ }
+
+ protected:
+ UniformBuffer<CameraParams> camera_params_;
+};
diff --git a/src/gpu/shaders.cc b/src/gpu/shaders.cc
index 1bf5604..30bbb0c 100644
--- a/src/gpu/shaders.cc
+++ b/src/gpu/shaders.cc
@@ -31,6 +31,7 @@ void InitShaderComposer() {
};
register_if_exists("common_uniforms", AssetId::ASSET_SHADER_COMMON_UNIFORMS);
+ register_if_exists("camera_common", AssetId::ASSET_SHADER_CAMERA_COMMON);
register_if_exists("math/sdf_shapes", AssetId::ASSET_SHADER_MATH_SDF_SHAPES);
register_if_exists("math/sdf_utils", AssetId::ASSET_SHADER_MATH_SDF_UTILS);
register_if_exists("math/common_utils",
@@ -114,6 +115,10 @@ const char* scene1_shader_wgsl =
SafeGetAsset(AssetId::ASSET_SHADER_SCENE1);
+const char* sdf_test_shader_wgsl =
+
+ SafeGetAsset(AssetId::ASSET_SHADER_SDF_TEST);
+
const char* distort_shader_wgsl =
SafeGetAsset(AssetId::ASSET_SHADER_DISTORT);
diff --git a/src/gpu/shaders.h b/src/gpu/shaders.h
index 03fa48c..03263db 100644
--- a/src/gpu/shaders.h
+++ b/src/gpu/shaders.h
@@ -16,6 +16,7 @@ extern const char* particle_spray_compute_wgsl;
extern const char* gaussian_blur_shader_wgsl;
extern const char* solarize_shader_wgsl;
extern const char* scene1_shader_wgsl;
+extern const char* sdf_test_shader_wgsl;
extern const char* distort_shader_wgsl;
extern const char* chroma_aberration_shader_wgsl;
extern const char* vignette_shader_wgsl;
generated by cgit v1.2.3 (git 2.51.0) at 2026-02-15 14:59:04 +0000