52 lines
1.4 KiB
Rust
52 lines
1.4 KiB
Rust
use bytemuck::{Pod, Zeroable};
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#[repr(C)]
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#[derive(Copy, Clone, Debug, Pod, Zeroable)]
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pub struct MaterialUniform {
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pub base_color: [f32; 4],
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pub metallic: f32,
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pub roughness: f32,
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pub ao: f32,
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pub _padding: f32,
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}
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impl MaterialUniform {
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pub fn new() -> Self {
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Self {
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base_color: [1.0, 1.0, 1.0, 1.0],
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metallic: 0.0,
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roughness: 0.5,
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ao: 1.0,
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_padding: 0.0,
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}
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}
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pub fn with_params(base_color: [f32; 4], metallic: f32, roughness: f32) -> Self {
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Self {
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base_color,
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metallic,
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roughness,
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ao: 1.0,
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_padding: 0.0,
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}
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}
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pub fn bind_group_layout(device: &wgpu::Device) -> wgpu::BindGroupLayout {
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device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
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label: Some("Material 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::Buffer {
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ty: wgpu::BufferBindingType::Uniform,
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has_dynamic_offset: true,
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min_binding_size: wgpu::BufferSize::new(
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std::mem::size_of::<MaterialUniform>() as u64,
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),
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},
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count: None,
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}],
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})
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}
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}
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