Jérôme Bousquié
37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
use crate::vertex::Vertex;
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use wgpu::util::DeviceExt;
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pub struct Mesh {
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pub vertex_buffer: wgpu::Buffer,
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pub index_buffer: Option<wgpu::Buffer>,
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pub num_vertices: u32,
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pub num_indices: u32,
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}
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impl Mesh {
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pub fn new(device: &wgpu::Device, vertices: &[Vertex], indices: Option<&[u16]>) -> Self {
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let vertex_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
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label: Some("Mesh Vertex Buffer"),
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contents: bytemuck::cast_slice(vertices),
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usage: wgpu::BufferUsages::VERTEX,
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});
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let (index_buffer, num_indices) = if let Some(data) = indices {
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let buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
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label: Some("Mesh Index Buffer"),
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usage: wgpu::BufferUsages::INDEX,
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contents: bytemuck::cast_slice(data),
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});
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(Some(buffer), data.len() as u32)
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} else {
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(None, 0)
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};
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Self {
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vertex_buffer,
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index_buffer,
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num_vertices: vertices.len() as u32,
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num_indices,
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}
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}
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}
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