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Added index buffer

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This commit is contained in:
Verox001 2025-05-04 11:34:25 +02:00
parent dac885748a
commit 99d5b76f02
1 changed files with 30 additions and 4 deletions
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34
simulator/src/main.rs
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@ -38,9 +38,17 @@ impl Vertex {
} }
const VERTICES: &[Vertex] = &[ const VERTICES: &[Vertex] = &[
Vertex { position: [0.0, 0.5, 0.0], color: [1.0, 0.0, 0.0] }, Vertex { position: [-0.0868241, 0.49240386, 0.0], color: [0.5, 0.0, 0.5] },
Vertex { position: [-0.5, -0.5, 0.0], color: [0.0, 1.0, 0.0] }, Vertex { position: [-0.49513406, 0.06958647, 0.0], color: [0.5, 0.0, 0.5] },
Vertex { position: [0.5, -0.5, 0.0], color: [0.0, 0.0, 1.0] }, Vertex { position: [-0.21918549, -0.44939706, 0.0], color: [0.5, 0.0, 0.5] },
Vertex { position: [0.35966998, -0.3473291, 0.0], color: [0.5, 0.0, 0.5] },
Vertex { position: [0.44147372, 0.2347359, 0.0], color: [0.5, 0.0, 0.5] },
];
const INDICES: &[u16] = &[
0, 1, 4,
1, 2, 4,
2, 3, 4,
]; ];
struct StateApplication<'a> { struct StateApplication<'a> {
@ -105,7 +113,10 @@ struct State<'a> {
render_pipeline: wgpu::RenderPipeline, render_pipeline: wgpu::RenderPipeline,
vertex_buffer: wgpu::Buffer, vertex_buffer: wgpu::Buffer,
index_buffer: wgpu::Buffer,
num_vertices: u32, num_vertices: u32,
num_indices: u32,
} }
impl<'a> State<'a> { impl<'a> State<'a> {
@ -122,8 +133,10 @@ impl<'a> State<'a> {
let render_pipeline = Self::create_render_pipeline(&device, &config); let render_pipeline = Self::create_render_pipeline(&device, &config);
let vertex_buffer = Self::create_vertex_buffer(&device); let vertex_buffer = Self::create_vertex_buffer(&device);
let index_buffer = Self::create_index_buffer(&device);
let num_vertices = VERTICES.len() as u32; let num_vertices = VERTICES.len() as u32;
let num_indices = INDICES.len() as u32;
Self { Self {
surface, surface,
@ -135,8 +148,10 @@ impl<'a> State<'a> {
render_pipeline, render_pipeline,
vertex_buffer, vertex_buffer,
index_buffer,
num_vertices, num_vertices,
num_indices,
} }
} }
@ -148,6 +163,16 @@ impl<'a> State<'a> {
// TODO: Update logic here // TODO: Update logic here
} }
fn create_index_buffer(device: &Device) -> wgpu::Buffer {
device.create_buffer_init(
&wgpu::util::BufferInitDescriptor {
label: Some("Index Buffer"),
contents: bytemuck::cast_slice(INDICES),
usage: wgpu::BufferUsages::INDEX,
}
)
}
fn create_vertex_buffer(device: &Device) -> wgpu::Buffer { fn create_vertex_buffer(device: &Device) -> wgpu::Buffer {
device.create_buffer_init( device.create_buffer_init(
&wgpu::util::BufferInitDescriptor { &wgpu::util::BufferInitDescriptor {
@ -301,7 +326,8 @@ impl<'a> State<'a> {
render_pass.set_pipeline(&self.render_pipeline); render_pass.set_pipeline(&self.render_pipeline);
render_pass.set_vertex_buffer(0, self.vertex_buffer.slice(..)); render_pass.set_vertex_buffer(0, self.vertex_buffer.slice(..));
render_pass.draw(0..self.num_vertices, 0..1); render_pass.set_index_buffer(self.index_buffer.slice(..), wgpu::IndexFormat::Uint16);
render_pass.draw_indexed(0..self.num_indices, 0, 0..1);
} }
self.queue.submit(std::iter::once(encoder.finish())); self.queue.submit(std::iter::once(encoder.finish()));