FramebufferBuilder

astrelis_render

Struct FramebufferBuilder 

Source 
pub struct FramebufferBuilder { /* private fields */ }
Expand description

Builder for creating framebuffers with optional attachments.

Implementations§

Source§

impl FramebufferBuilder

Source

pub fn new(width: u32, height: u32) -> Self

Create a new framebuffer builder with the given dimensions.

Source

pub fn format(self, format: TextureFormat) -> Self

Set the color format.

Examples found in repository?
examples/renderer_api.rs (line 172)
28fn main() {
29    logging::init();
30
31    run_app(|ctx| {
32        let graphics_ctx = GraphicsContext::new_sync();
33        let renderer = Renderer::new(graphics_ctx);
34
35        let window = ctx
36            .create_window(WindowDescriptor {
37                title: "Renderer API Example".to_string(),
38                size: Some(PhysicalSize::new(800.0, 600.0)),
39                ..Default::default()
40            })
41            .expect("Failed to create window");
42
43        let window = RenderableWindow::new_with_descriptor(
44            window,
45            graphics_ctx,
46            WindowContextDescriptor {
47                format: Some(wgpu::TextureFormat::Bgra8UnormSrgb),
48                ..Default::default()
49            },
50        );
51
52        let window_id = window.id();
53
54        // Create shader using Renderer API
55        let shader = renderer.create_shader(Some("Color Shader"), SHADER_SOURCE);
56
57        // Create texture using Renderer helper
58        let texture_data = create_gradient_texture();
59        let texture = renderer.create_texture_2d(
60            Some("Gradient Texture"),
61            256,
62            256,
63            wgpu::TextureFormat::Rgba8UnormSrgb,
64            wgpu::TextureUsages::TEXTURE_BINDING,
65            &texture_data,
66        );
67
68        let texture_view = texture.create_view(&wgpu::TextureViewDescriptor::default());
69        let sampler = renderer.create_linear_sampler(Some("Linear Sampler"));
70
71        // Create bind group using Renderer API
72        let bind_group_layout = renderer.create_bind_group_layout(
73            Some("Texture Bind Group Layout"),
74            &[
75                wgpu::BindGroupLayoutEntry {
76                    binding: 0,
77                    visibility: wgpu::ShaderStages::FRAGMENT,
78                    ty: wgpu::BindingType::Texture {
79                        multisampled: false,
80                        view_dimension: wgpu::TextureViewDimension::D2,
81                        sample_type: wgpu::TextureSampleType::Float { filterable: true },
82                    },
83                    count: None,
84                },
85                wgpu::BindGroupLayoutEntry {
86                    binding: 1,
87                    visibility: wgpu::ShaderStages::FRAGMENT,
88                    ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
89                    count: None,
90                },
91            ],
92        );
93
94        let bind_group = renderer.create_bind_group(
95            Some("Texture Bind Group"),
96            &bind_group_layout,
97            &[
98                wgpu::BindGroupEntry {
99                    binding: 0,
100                    resource: wgpu::BindingResource::TextureView(&texture_view),
101                },
102                wgpu::BindGroupEntry {
103                    binding: 1,
104                    resource: wgpu::BindingResource::Sampler(&sampler),
105                },
106            ],
107        );
108
109        let pipeline_layout = renderer.create_pipeline_layout(
110            Some("Render Pipeline Layout"),
111            &[&bind_group_layout],
112            &[],
113        );
114
115        // Create pipeline using Renderer API with BlendMode
116        let pipeline = renderer.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
117            label: Some("Render Pipeline"),
118            layout: Some(&pipeline_layout),
119            vertex: wgpu::VertexState {
120                module: &shader,
121                entry_point: Some("vs_main"),
122                buffers: &[wgpu::VertexBufferLayout {
123                    array_stride: 4 * 4,
124                    step_mode: wgpu::VertexStepMode::Vertex,
125                    attributes: &wgpu::vertex_attr_array![0 => Float32x2, 1 => Float32x2],
126                }],
127                compilation_options: wgpu::PipelineCompilationOptions::default(),
128            },
129            fragment: Some(wgpu::FragmentState {
130                module: &shader,
131                entry_point: Some("fs_main"),
132                // Use BlendMode for transparent rendering
133                targets: &[Some(
134                    BlendMode::Alpha.to_color_target_state(wgpu::TextureFormat::Rgba8UnormSrgb),
135                )],
136                compilation_options: wgpu::PipelineCompilationOptions::default(),
137            }),
138            primitive: wgpu::PrimitiveState {
139                topology: wgpu::PrimitiveTopology::TriangleList,
140                strip_index_format: None,
141                front_face: wgpu::FrontFace::Ccw,
142                cull_mode: Some(wgpu::Face::Back),
143                polygon_mode: wgpu::PolygonMode::Fill,
144                unclipped_depth: false,
145                conservative: false,
146            },
147            depth_stencil: None,
148            multisample: wgpu::MultisampleState {
149                count: 1,
150                mask: !0,
151                alpha_to_coverage_enabled: false,
152            },
153            multiview: None,
154            cache: None,
155        });
156
157        #[rustfmt::skip]
158        let vertices: &[f32] = &[
159            -0.8, -0.8,  0.0, 1.0,
160             0.8, -0.8,  1.0, 1.0,
161             0.8,  0.8,  1.0, 0.0,
162            -0.8, -0.8,  0.0, 1.0,
163             0.8,  0.8,  1.0, 0.0,
164            -0.8,  0.8,  0.0, 0.0,
165        ];
166
167        // Create vertex buffer using Renderer helper
168        let vertex_buffer = renderer.create_vertex_buffer(Some("Vertex Buffer"), vertices);
169
170        // Create offscreen framebuffer using the new Framebuffer abstraction
171        let offscreen_fb = Framebuffer::builder(400, 300)
172            .format(wgpu::TextureFormat::Rgba8UnormSrgb)
173            .label("Offscreen FB")
174            .build(graphics_ctx);
175
176        // Create blit shader and pipeline for rendering framebuffer to surface
177        let blit_shader = renderer.create_shader(Some("Blit Shader"), BLIT_SHADER_SOURCE);
178
179        let blit_bind_group_layout = renderer.create_bind_group_layout(
180            Some("Blit Bind Group Layout"),
181            &[
182                wgpu::BindGroupLayoutEntry {
183                    binding: 0,
184                    visibility: wgpu::ShaderStages::FRAGMENT,
185                    ty: wgpu::BindingType::Texture {
186                        multisampled: false,
187                        view_dimension: wgpu::TextureViewDimension::D2,
188                        sample_type: wgpu::TextureSampleType::Float { filterable: true },
189                    },
190                    count: None,
191                },
192                wgpu::BindGroupLayoutEntry {
193                    binding: 1,
194                    visibility: wgpu::ShaderStages::FRAGMENT,
195                    ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
196                    count: None,
197                },
198            ],
199        );
200
201        let blit_bind_group = renderer.create_bind_group(
202            Some("Blit Bind Group"),
203            &blit_bind_group_layout,
204            &[
205                wgpu::BindGroupEntry {
206                    binding: 0,
207                    resource: wgpu::BindingResource::TextureView(offscreen_fb.color_view()),
208                },
209                wgpu::BindGroupEntry {
210                    binding: 1,
211                    resource: wgpu::BindingResource::Sampler(&sampler),
212                },
213            ],
214        );
215
216        let blit_pipeline_layout = renderer.create_pipeline_layout(
217            Some("Blit Pipeline Layout"),
218            &[&blit_bind_group_layout],
219            &[],
220        );
221
222        let blit_pipeline = renderer.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
223            label: Some("Blit Pipeline"),
224            layout: Some(&blit_pipeline_layout),
225            vertex: wgpu::VertexState {
226                module: &blit_shader,
227                entry_point: Some("vs_main"),
228                buffers: &[],
229                compilation_options: wgpu::PipelineCompilationOptions::default(),
230            },
231            fragment: Some(wgpu::FragmentState {
232                module: &blit_shader,
233                entry_point: Some("fs_main"),
234                // Use PremultipliedAlpha for framebuffer blitting
235                targets: &[Some(
236                    BlendMode::PremultipliedAlpha
237                        .to_color_target_state(wgpu::TextureFormat::Bgra8UnormSrgb),
238                )],
239                compilation_options: wgpu::PipelineCompilationOptions::default(),
240            }),
241            primitive: wgpu::PrimitiveState {
242                topology: wgpu::PrimitiveTopology::TriangleList,
243                ..Default::default()
244            },
245            depth_stencil: None,
246            multisample: wgpu::MultisampleState::default(),
247            multiview: None,
248            cache: None,
249        });
250
251        tracing::info!("Renderer initialized successfully");
252        tracing::info!("Device: {:?}", renderer.context().info());
253
254        Box::new(RendererApp {
255            context: graphics_ctx,
256            renderer,
257            window,
258            window_id,
259            pipeline,
260            bind_group,
261            vertex_buffer,
262            offscreen_fb,
263            blit_pipeline,
264            blit_bind_group,
265            time: 0.0,
266        })
267    });
268}
Source

pub fn with_msaa(self, sample_count: u32) -> Self

Enable MSAA with the given sample count (typically 4).

Source

pub fn sample_count_if(self, condition: bool, sample_count: u32) -> Self

Conditionally set sample count.

Source

pub fn with_depth(self) -> Self

Enable depth buffer.

Source

pub fn depth_if(self, condition: bool) -> Self

Conditionally enable depth buffer.

Source

pub fn label(self, label: &'static str) -> Self

Set a debug label for the framebuffer textures.

Examples found in repository?
examples/renderer_api.rs (line 173)
28fn main() {
29    logging::init();
30
31    run_app(|ctx| {
32        let graphics_ctx = GraphicsContext::new_sync();
33        let renderer = Renderer::new(graphics_ctx);
34
35        let window = ctx
36            .create_window(WindowDescriptor {
37                title: "Renderer API Example".to_string(),
38                size: Some(PhysicalSize::new(800.0, 600.0)),
39                ..Default::default()
40            })
41            .expect("Failed to create window");
42
43        let window = RenderableWindow::new_with_descriptor(
44            window,
45            graphics_ctx,
46            WindowContextDescriptor {
47                format: Some(wgpu::TextureFormat::Bgra8UnormSrgb),
48                ..Default::default()
49            },
50        );
51
52        let window_id = window.id();
53
54        // Create shader using Renderer API
55        let shader = renderer.create_shader(Some("Color Shader"), SHADER_SOURCE);
56
57        // Create texture using Renderer helper
58        let texture_data = create_gradient_texture();
59        let texture = renderer.create_texture_2d(
60            Some("Gradient Texture"),
61            256,
62            256,
63            wgpu::TextureFormat::Rgba8UnormSrgb,
64            wgpu::TextureUsages::TEXTURE_BINDING,
65            &texture_data,
66        );
67
68        let texture_view = texture.create_view(&wgpu::TextureViewDescriptor::default());
69        let sampler = renderer.create_linear_sampler(Some("Linear Sampler"));
70
71        // Create bind group using Renderer API
72        let bind_group_layout = renderer.create_bind_group_layout(
73            Some("Texture Bind Group Layout"),
74            &[
75                wgpu::BindGroupLayoutEntry {
76                    binding: 0,
77                    visibility: wgpu::ShaderStages::FRAGMENT,
78                    ty: wgpu::BindingType::Texture {
79                        multisampled: false,
80                        view_dimension: wgpu::TextureViewDimension::D2,
81                        sample_type: wgpu::TextureSampleType::Float { filterable: true },
82                    },
83                    count: None,
84                },
85                wgpu::BindGroupLayoutEntry {
86                    binding: 1,
87                    visibility: wgpu::ShaderStages::FRAGMENT,
88                    ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
89                    count: None,
90                },
91            ],
92        );
93
94        let bind_group = renderer.create_bind_group(
95            Some("Texture Bind Group"),
96            &bind_group_layout,
97            &[
98                wgpu::BindGroupEntry {
99                    binding: 0,
100                    resource: wgpu::BindingResource::TextureView(&texture_view),
101                },
102                wgpu::BindGroupEntry {
103                    binding: 1,
104                    resource: wgpu::BindingResource::Sampler(&sampler),
105                },
106            ],
107        );
108
109        let pipeline_layout = renderer.create_pipeline_layout(
110            Some("Render Pipeline Layout"),
111            &[&bind_group_layout],
112            &[],
113        );
114
115        // Create pipeline using Renderer API with BlendMode
116        let pipeline = renderer.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
117            label: Some("Render Pipeline"),
118            layout: Some(&pipeline_layout),
119            vertex: wgpu::VertexState {
120                module: &shader,
121                entry_point: Some("vs_main"),
122                buffers: &[wgpu::VertexBufferLayout {
123                    array_stride: 4 * 4,
124                    step_mode: wgpu::VertexStepMode::Vertex,
125                    attributes: &wgpu::vertex_attr_array![0 => Float32x2, 1 => Float32x2],
126                }],
127                compilation_options: wgpu::PipelineCompilationOptions::default(),
128            },
129            fragment: Some(wgpu::FragmentState {
130                module: &shader,
131                entry_point: Some("fs_main"),
132                // Use BlendMode for transparent rendering
133                targets: &[Some(
134                    BlendMode::Alpha.to_color_target_state(wgpu::TextureFormat::Rgba8UnormSrgb),
135                )],
136                compilation_options: wgpu::PipelineCompilationOptions::default(),
137            }),
138            primitive: wgpu::PrimitiveState {
139                topology: wgpu::PrimitiveTopology::TriangleList,
140                strip_index_format: None,
141                front_face: wgpu::FrontFace::Ccw,
142                cull_mode: Some(wgpu::Face::Back),
143                polygon_mode: wgpu::PolygonMode::Fill,
144                unclipped_depth: false,
145                conservative: false,
146            },
147            depth_stencil: None,
148            multisample: wgpu::MultisampleState {
149                count: 1,
150                mask: !0,
151                alpha_to_coverage_enabled: false,
152            },
153            multiview: None,
154            cache: None,
155        });
156
157        #[rustfmt::skip]
158        let vertices: &[f32] = &[
159            -0.8, -0.8,  0.0, 1.0,
160             0.8, -0.8,  1.0, 1.0,
161             0.8,  0.8,  1.0, 0.0,
162            -0.8, -0.8,  0.0, 1.0,
163             0.8,  0.8,  1.0, 0.0,
164            -0.8,  0.8,  0.0, 0.0,
165        ];
166
167        // Create vertex buffer using Renderer helper
168        let vertex_buffer = renderer.create_vertex_buffer(Some("Vertex Buffer"), vertices);
169
170        // Create offscreen framebuffer using the new Framebuffer abstraction
171        let offscreen_fb = Framebuffer::builder(400, 300)
172            .format(wgpu::TextureFormat::Rgba8UnormSrgb)
173            .label("Offscreen FB")
174            .build(graphics_ctx);
175
176        // Create blit shader and pipeline for rendering framebuffer to surface
177        let blit_shader = renderer.create_shader(Some("Blit Shader"), BLIT_SHADER_SOURCE);
178
179        let blit_bind_group_layout = renderer.create_bind_group_layout(
180            Some("Blit Bind Group Layout"),
181            &[
182                wgpu::BindGroupLayoutEntry {
183                    binding: 0,
184                    visibility: wgpu::ShaderStages::FRAGMENT,
185                    ty: wgpu::BindingType::Texture {
186                        multisampled: false,
187                        view_dimension: wgpu::TextureViewDimension::D2,
188                        sample_type: wgpu::TextureSampleType::Float { filterable: true },
189                    },
190                    count: None,
191                },
192                wgpu::BindGroupLayoutEntry {
193                    binding: 1,
194                    visibility: wgpu::ShaderStages::FRAGMENT,
195                    ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
196                    count: None,
197                },
198            ],
199        );
200
201        let blit_bind_group = renderer.create_bind_group(
202            Some("Blit Bind Group"),
203            &blit_bind_group_layout,
204            &[
205                wgpu::BindGroupEntry {
206                    binding: 0,
207                    resource: wgpu::BindingResource::TextureView(offscreen_fb.color_view()),
208                },
209                wgpu::BindGroupEntry {
210                    binding: 1,
211                    resource: wgpu::BindingResource::Sampler(&sampler),
212                },
213            ],
214        );
215
216        let blit_pipeline_layout = renderer.create_pipeline_layout(
217            Some("Blit Pipeline Layout"),
218            &[&blit_bind_group_layout],
219            &[],
220        );
221
222        let blit_pipeline = renderer.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
223            label: Some("Blit Pipeline"),
224            layout: Some(&blit_pipeline_layout),
225            vertex: wgpu::VertexState {
226                module: &blit_shader,
227                entry_point: Some("vs_main"),
228                buffers: &[],
229                compilation_options: wgpu::PipelineCompilationOptions::default(),
230            },
231            fragment: Some(wgpu::FragmentState {
232                module: &blit_shader,
233                entry_point: Some("fs_main"),
234                // Use PremultipliedAlpha for framebuffer blitting
235                targets: &[Some(
236                    BlendMode::PremultipliedAlpha
237                        .to_color_target_state(wgpu::TextureFormat::Bgra8UnormSrgb),
238                )],
239                compilation_options: wgpu::PipelineCompilationOptions::default(),
240            }),
241            primitive: wgpu::PrimitiveState {
242                topology: wgpu::PrimitiveTopology::TriangleList,
243                ..Default::default()
244            },
245            depth_stencil: None,
246            multisample: wgpu::MultisampleState::default(),
247            multiview: None,
248            cache: None,
249        });
250
251        tracing::info!("Renderer initialized successfully");
252        tracing::info!("Device: {:?}", renderer.context().info());
253
254        Box::new(RendererApp {
255            context: graphics_ctx,
256            renderer,
257            window,
258            window_id,
259            pipeline,
260            bind_group,
261            vertex_buffer,
262            offscreen_fb,
263            blit_pipeline,
264            blit_bind_group,
265            time: 0.0,
266        })
267    });
268}
Source

pub fn build(self, context: &GraphicsContext) -> Framebuffer

Build the framebuffer.

Examples found in repository?
examples/renderer_api.rs (line 174)
28fn main() {
29    logging::init();
30
31    run_app(|ctx| {
32        let graphics_ctx = GraphicsContext::new_sync();
33        let renderer = Renderer::new(graphics_ctx);
34
35        let window = ctx
36            .create_window(WindowDescriptor {
37                title: "Renderer API Example".to_string(),
38                size: Some(PhysicalSize::new(800.0, 600.0)),
39                ..Default::default()
40            })
41            .expect("Failed to create window");
42
43        let window = RenderableWindow::new_with_descriptor(
44            window,
45            graphics_ctx,
46            WindowContextDescriptor {
47                format: Some(wgpu::TextureFormat::Bgra8UnormSrgb),
48                ..Default::default()
49            },
50        );
51
52        let window_id = window.id();
53
54        // Create shader using Renderer API
55        let shader = renderer.create_shader(Some("Color Shader"), SHADER_SOURCE);
56
57        // Create texture using Renderer helper
58        let texture_data = create_gradient_texture();
59        let texture = renderer.create_texture_2d(
60            Some("Gradient Texture"),
61            256,
62            256,
63            wgpu::TextureFormat::Rgba8UnormSrgb,
64            wgpu::TextureUsages::TEXTURE_BINDING,
65            &texture_data,
66        );
67
68        let texture_view = texture.create_view(&wgpu::TextureViewDescriptor::default());
69        let sampler = renderer.create_linear_sampler(Some("Linear Sampler"));
70
71        // Create bind group using Renderer API
72        let bind_group_layout = renderer.create_bind_group_layout(
73            Some("Texture Bind Group Layout"),
74            &[
75                wgpu::BindGroupLayoutEntry {
76                    binding: 0,
77                    visibility: wgpu::ShaderStages::FRAGMENT,
78                    ty: wgpu::BindingType::Texture {
79                        multisampled: false,
80                        view_dimension: wgpu::TextureViewDimension::D2,
81                        sample_type: wgpu::TextureSampleType::Float { filterable: true },
82                    },
83                    count: None,
84                },
85                wgpu::BindGroupLayoutEntry {
86                    binding: 1,
87                    visibility: wgpu::ShaderStages::FRAGMENT,
88                    ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
89                    count: None,
90                },
91            ],
92        );
93
94        let bind_group = renderer.create_bind_group(
95            Some("Texture Bind Group"),
96            &bind_group_layout,
97            &[
98                wgpu::BindGroupEntry {
99                    binding: 0,
100                    resource: wgpu::BindingResource::TextureView(&texture_view),
101                },
102                wgpu::BindGroupEntry {
103                    binding: 1,
104                    resource: wgpu::BindingResource::Sampler(&sampler),
105                },
106            ],
107        );
108
109        let pipeline_layout = renderer.create_pipeline_layout(
110            Some("Render Pipeline Layout"),
111            &[&bind_group_layout],
112            &[],
113        );
114
115        // Create pipeline using Renderer API with BlendMode
116        let pipeline = renderer.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
117            label: Some("Render Pipeline"),
118            layout: Some(&pipeline_layout),
119            vertex: wgpu::VertexState {
120                module: &shader,
121                entry_point: Some("vs_main"),
122                buffers: &[wgpu::VertexBufferLayout {
123                    array_stride: 4 * 4,
124                    step_mode: wgpu::VertexStepMode::Vertex,
125                    attributes: &wgpu::vertex_attr_array![0 => Float32x2, 1 => Float32x2],
126                }],
127                compilation_options: wgpu::PipelineCompilationOptions::default(),
128            },
129            fragment: Some(wgpu::FragmentState {
130                module: &shader,
131                entry_point: Some("fs_main"),
132                // Use BlendMode for transparent rendering
133                targets: &[Some(
134                    BlendMode::Alpha.to_color_target_state(wgpu::TextureFormat::Rgba8UnormSrgb),
135                )],
136                compilation_options: wgpu::PipelineCompilationOptions::default(),
137            }),
138            primitive: wgpu::PrimitiveState {
139                topology: wgpu::PrimitiveTopology::TriangleList,
140                strip_index_format: None,
141                front_face: wgpu::FrontFace::Ccw,
142                cull_mode: Some(wgpu::Face::Back),
143                polygon_mode: wgpu::PolygonMode::Fill,
144                unclipped_depth: false,
145                conservative: false,
146            },
147            depth_stencil: None,
148            multisample: wgpu::MultisampleState {
149                count: 1,
150                mask: !0,
151                alpha_to_coverage_enabled: false,
152            },
153            multiview: None,
154            cache: None,
155        });
156
157        #[rustfmt::skip]
158        let vertices: &[f32] = &[
159            -0.8, -0.8,  0.0, 1.0,
160             0.8, -0.8,  1.0, 1.0,
161             0.8,  0.8,  1.0, 0.0,
162            -0.8, -0.8,  0.0, 1.0,
163             0.8,  0.8,  1.0, 0.0,
164            -0.8,  0.8,  0.0, 0.0,
165        ];
166
167        // Create vertex buffer using Renderer helper
168        let vertex_buffer = renderer.create_vertex_buffer(Some("Vertex Buffer"), vertices);
169
170        // Create offscreen framebuffer using the new Framebuffer abstraction
171        let offscreen_fb = Framebuffer::builder(400, 300)
172            .format(wgpu::TextureFormat::Rgba8UnormSrgb)
173            .label("Offscreen FB")
174            .build(graphics_ctx);
175
176        // Create blit shader and pipeline for rendering framebuffer to surface
177        let blit_shader = renderer.create_shader(Some("Blit Shader"), BLIT_SHADER_SOURCE);
178
179        let blit_bind_group_layout = renderer.create_bind_group_layout(
180            Some("Blit Bind Group Layout"),
181            &[
182                wgpu::BindGroupLayoutEntry {
183                    binding: 0,
184                    visibility: wgpu::ShaderStages::FRAGMENT,
185                    ty: wgpu::BindingType::Texture {
186                        multisampled: false,
187                        view_dimension: wgpu::TextureViewDimension::D2,
188                        sample_type: wgpu::TextureSampleType::Float { filterable: true },
189                    },
190                    count: None,
191                },
192                wgpu::BindGroupLayoutEntry {
193                    binding: 1,
194                    visibility: wgpu::ShaderStages::FRAGMENT,
195                    ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
196                    count: None,
197                },
198            ],
199        );
200
201        let blit_bind_group = renderer.create_bind_group(
202            Some("Blit Bind Group"),
203            &blit_bind_group_layout,
204            &[
205                wgpu::BindGroupEntry {
206                    binding: 0,
207                    resource: wgpu::BindingResource::TextureView(offscreen_fb.color_view()),
208                },
209                wgpu::BindGroupEntry {
210                    binding: 1,
211                    resource: wgpu::BindingResource::Sampler(&sampler),
212                },
213            ],
214        );
215
216        let blit_pipeline_layout = renderer.create_pipeline_layout(
217            Some("Blit Pipeline Layout"),
218            &[&blit_bind_group_layout],
219            &[],
220        );
221
222        let blit_pipeline = renderer.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
223            label: Some("Blit Pipeline"),
224            layout: Some(&blit_pipeline_layout),
225            vertex: wgpu::VertexState {
226                module: &blit_shader,
227                entry_point: Some("vs_main"),
228                buffers: &[],
229                compilation_options: wgpu::PipelineCompilationOptions::default(),
230            },
231            fragment: Some(wgpu::FragmentState {
232                module: &blit_shader,
233                entry_point: Some("fs_main"),
234                // Use PremultipliedAlpha for framebuffer blitting
235                targets: &[Some(
236                    BlendMode::PremultipliedAlpha
237                        .to_color_target_state(wgpu::TextureFormat::Bgra8UnormSrgb),
238                )],
239                compilation_options: wgpu::PipelineCompilationOptions::default(),
240            }),
241            primitive: wgpu::PrimitiveState {
242                topology: wgpu::PrimitiveTopology::TriangleList,
243                ..Default::default()
244            },
245            depth_stencil: None,
246            multisample: wgpu::MultisampleState::default(),
247            multiview: None,
248            cache: None,
249        });
250
251        tracing::info!("Renderer initialized successfully");
252        tracing::info!("Device: {:?}", renderer.context().info());
253
254        Box::new(RendererApp {
255            context: graphics_ctx,
256            renderer,
257            window,
258            window_id,
259            pipeline,
260            bind_group,
261            vertex_buffer,
262            offscreen_fb,
263            blit_pipeline,
264            blit_bind_group,
265            time: 0.0,
266        })
267    });
268}

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