98 lines
3.1 KiB
Rust
98 lines
3.1 KiB
Rust
use iced_wgpu::wgpu;
|
|
use iced_winit::Color;
|
|
|
|
pub struct Scene {
|
|
pipeline: wgpu::RenderPipeline,
|
|
}
|
|
|
|
impl Scene {
|
|
pub fn new(device: &wgpu::Device) -> Scene {
|
|
let pipeline = build_pipeline(device);
|
|
|
|
Scene { pipeline }
|
|
}
|
|
|
|
pub fn clear<'a>(
|
|
&self,
|
|
target: &'a wgpu::TextureView,
|
|
encoder: &'a mut wgpu::CommandEncoder,
|
|
background_color: Color,
|
|
) -> wgpu::RenderPass<'a> {
|
|
encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
|
|
label: None,
|
|
color_attachments: &[wgpu::RenderPassColorAttachmentDescriptor {
|
|
attachment: target,
|
|
resolve_target: None,
|
|
ops: wgpu::Operations {
|
|
load: wgpu::LoadOp::Clear({
|
|
let [r, g, b, a] = background_color.into_linear();
|
|
|
|
wgpu::Color {
|
|
r: r as f64,
|
|
g: g as f64,
|
|
b: b as f64,
|
|
a: a as f64,
|
|
}
|
|
}),
|
|
store: true,
|
|
},
|
|
}],
|
|
depth_stencil_attachment: None,
|
|
})
|
|
}
|
|
|
|
pub fn draw<'a>(&'a self, render_pass: &mut wgpu::RenderPass<'a>) {
|
|
render_pass.set_pipeline(&self.pipeline);
|
|
render_pass.draw(0..3, 0..1);
|
|
}
|
|
}
|
|
|
|
fn build_pipeline(device: &wgpu::Device) -> wgpu::RenderPipeline {
|
|
let vs_module =
|
|
device.create_shader_module(&wgpu::include_spirv!("shader/vert.spv"));
|
|
|
|
let fs_module =
|
|
device.create_shader_module(&wgpu::include_spirv!("shader/frag.spv"));
|
|
|
|
let pipeline_layout =
|
|
device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
|
|
label: None,
|
|
push_constant_ranges: &[],
|
|
bind_group_layouts: &[],
|
|
});
|
|
|
|
let pipeline =
|
|
device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
|
|
label: None,
|
|
layout: Some(&pipeline_layout),
|
|
vertex: wgpu::VertexState {
|
|
module: &vs_module,
|
|
entry_point: "main",
|
|
buffers: &[],
|
|
},
|
|
fragment: Some(wgpu::FragmentState {
|
|
module: &fs_module,
|
|
entry_point: "main",
|
|
targets: &[wgpu::ColorTargetState {
|
|
format: wgpu::TextureFormat::Bgra8UnormSrgb,
|
|
color_blend: wgpu::BlendState::REPLACE,
|
|
alpha_blend: wgpu::BlendState::REPLACE,
|
|
write_mask: wgpu::ColorWrite::ALL,
|
|
}],
|
|
}),
|
|
primitive: wgpu::PrimitiveState {
|
|
topology: wgpu::PrimitiveTopology::TriangleList,
|
|
front_face: wgpu::FrontFace::Ccw,
|
|
cull_mode: wgpu::CullMode::None,
|
|
..Default::default()
|
|
},
|
|
depth_stencil: None,
|
|
multisample: wgpu::MultisampleState {
|
|
count: 1,
|
|
mask: !0,
|
|
alpha_to_coverage_enabled: false,
|
|
},
|
|
});
|
|
|
|
pipeline
|
|
}
|