debug rendering
This commit is contained in:
Jonas H
232
src/render/debug_overlay.rs
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232
src/render/debug_overlay.rs
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use crate::postprocess::ScreenVertex;
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pub struct DebugOverlay
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{
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pipeline_shadow: wgpu::RenderPipeline,
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pipeline_snow_light: wgpu::RenderPipeline,
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shadow_bind_group_layout: wgpu::BindGroupLayout,
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snow_light_bind_group_layout: wgpu::BindGroupLayout,
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}
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impl DebugOverlay
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{
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pub fn new(device: &wgpu::Device, format: wgpu::TextureFormat) -> Self
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{
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let shader_source = std::fs::read_to_string("src/shaders/debug_overlay.wgsl")
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.expect("Failed to read debug_overlay.wgsl");
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let shader = device.create_shader_module(wgpu::ShaderModuleDescriptor {
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label: Some("Debug Overlay Shader"),
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source: wgpu::ShaderSource::Wgsl(shader_source.into()),
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});
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let shadow_bind_group_layout =
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device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
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label: Some("Shadow Debug Bind Group Layout"),
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entries: &[wgpu::BindGroupLayoutEntry {
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binding: 0,
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visibility: wgpu::ShaderStages::FRAGMENT,
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ty: wgpu::BindingType::Texture {
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sample_type: wgpu::TextureSampleType::Depth,
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view_dimension: wgpu::TextureViewDimension::D2Array,
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multisampled: false,
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},
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count: None,
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}],
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});
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let snow_light_bind_group_layout =
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device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
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label: Some("Snow Light Debug Bind Group Layout"),
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entries: &[
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wgpu::BindGroupLayoutEntry {
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binding: 1,
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visibility: wgpu::ShaderStages::FRAGMENT,
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ty: wgpu::BindingType::Texture {
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sample_type: wgpu::TextureSampleType::Float { filterable: true },
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view_dimension: wgpu::TextureViewDimension::D2,
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multisampled: false,
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},
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count: None,
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},
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wgpu::BindGroupLayoutEntry {
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binding: 2,
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visibility: wgpu::ShaderStages::FRAGMENT,
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ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
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count: None,
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},
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],
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});
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let shadow_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
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label: Some("Shadow Debug Pipeline Layout"),
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bind_group_layouts: &[&shadow_bind_group_layout],
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push_constant_ranges: &[],
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});
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let snow_light_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
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label: Some("Snow Light Debug Pipeline Layout"),
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bind_group_layouts: &[&snow_light_bind_group_layout],
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push_constant_ranges: &[],
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});
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let color_target = wgpu::ColorTargetState {
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format,
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blend: Some(wgpu::BlendState::REPLACE),
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write_mask: wgpu::ColorWrites::ALL,
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};
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let pipeline_shadow = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
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label: Some("Shadow Debug Pipeline"),
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layout: Some(&shadow_layout),
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vertex: wgpu::VertexState {
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module: &shader,
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entry_point: Some("vs_main"),
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buffers: &[ScreenVertex::desc()],
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compilation_options: Default::default(),
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},
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fragment: Some(wgpu::FragmentState {
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module: &shader,
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entry_point: Some("fs_shadow_map"),
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targets: &[Some(color_target.clone())],
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compilation_options: Default::default(),
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}),
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primitive: wgpu::PrimitiveState {
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topology: wgpu::PrimitiveTopology::TriangleList,
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cull_mode: None,
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..Default::default()
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},
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depth_stencil: None,
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multisample: wgpu::MultisampleState::default(),
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multiview: None,
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cache: None,
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});
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let pipeline_snow_light =
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device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
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label: Some("Snow Light Debug Pipeline"),
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layout: Some(&snow_light_layout),
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vertex: wgpu::VertexState {
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module: &shader,
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entry_point: Some("vs_main"),
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buffers: &[ScreenVertex::desc()],
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compilation_options: Default::default(),
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},
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fragment: Some(wgpu::FragmentState {
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module: &shader,
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entry_point: Some("fs_snow_light"),
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targets: &[Some(color_target)],
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compilation_options: Default::default(),
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}),
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primitive: wgpu::PrimitiveState {
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topology: wgpu::PrimitiveTopology::TriangleList,
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cull_mode: None,
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..Default::default()
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},
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depth_stencil: None,
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multisample: wgpu::MultisampleState::default(),
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multiview: None,
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cache: None,
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});
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Self {
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pipeline_shadow,
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pipeline_snow_light,
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shadow_bind_group_layout,
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snow_light_bind_group_layout,
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}
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}
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pub fn render_shadow_map(
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&self,
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encoder: &mut wgpu::CommandEncoder,
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target: &wgpu::TextureView,
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shadow_view: &wgpu::TextureView,
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quad_vb: &wgpu::Buffer,
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quad_ib: &wgpu::Buffer,
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quad_num_indices: u32,
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device: &wgpu::Device,
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)
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{
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let bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
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label: Some("Shadow Debug Bind Group"),
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layout: &self.shadow_bind_group_layout,
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entries: &[wgpu::BindGroupEntry {
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binding: 0,
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resource: wgpu::BindingResource::TextureView(shadow_view),
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}],
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});
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let mut pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
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label: Some("Shadow Debug Pass"),
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color_attachments: &[Some(wgpu::RenderPassColorAttachment {
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view: target,
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resolve_target: None,
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ops: wgpu::Operations {
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load: wgpu::LoadOp::Load,
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store: wgpu::StoreOp::Store,
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},
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depth_slice: None,
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})],
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depth_stencil_attachment: None,
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timestamp_writes: None,
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occlusion_query_set: None,
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});
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pass.set_pipeline(&self.pipeline_shadow);
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pass.set_bind_group(0, &bind_group, &[]);
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pass.set_vertex_buffer(0, quad_vb.slice(..));
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pass.set_index_buffer(quad_ib.slice(..), wgpu::IndexFormat::Uint16);
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pass.draw_indexed(0..quad_num_indices, 0, 0..1);
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}
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pub fn render_snow_light(
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&self,
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encoder: &mut wgpu::CommandEncoder,
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target: &wgpu::TextureView,
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snow_light_view: &wgpu::TextureView,
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snow_light_sampler: &wgpu::Sampler,
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quad_vb: &wgpu::Buffer,
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quad_ib: &wgpu::Buffer,
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quad_num_indices: u32,
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device: &wgpu::Device,
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)
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{
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let bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
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label: Some("Snow Light Debug Bind Group"),
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layout: &self.snow_light_bind_group_layout,
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entries: &[
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wgpu::BindGroupEntry {
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binding: 1,
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resource: wgpu::BindingResource::TextureView(snow_light_view),
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},
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wgpu::BindGroupEntry {
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binding: 2,
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resource: wgpu::BindingResource::Sampler(snow_light_sampler),
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},
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],
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});
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let mut pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
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label: Some("Snow Light Debug Pass"),
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color_attachments: &[Some(wgpu::RenderPassColorAttachment {
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view: target,
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resolve_target: None,
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ops: wgpu::Operations {
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load: wgpu::LoadOp::Load,
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store: wgpu::StoreOp::Store,
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},
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depth_slice: None,
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})],
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depth_stencil_attachment: None,
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timestamp_writes: None,
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occlusion_query_set: None,
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});
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pass.set_pipeline(&self.pipeline_snow_light);
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pass.set_bind_group(0, &bind_group, &[]);
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pass.set_vertex_buffer(0, quad_vb.slice(..));
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pass.set_index_buffer(quad_ib.slice(..), wgpu::IndexFormat::Uint16);
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pass.draw_indexed(0..quad_num_indices, 0, 0..1);
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}
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}
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