ferrum-wgpu 0.1.0

3D rendering engine library
Documentation 
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use wgpu::BindGroup;

use crate::renderer;

pub struct Material {
    pub name: String,
    pub diffuse_texture: renderer::Texture,
    pub normal_texture: renderer::Texture,
    pub bind_group: wgpu::BindGroup,
}

impl Material {
    /// Layout shared by every material: diffuse texture + sampler and normal
    /// map + sampler, all visible from the fragment shader.
    pub fn bind_group_layout(device: &wgpu::Device) -> wgpu::BindGroupLayout {
        device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
            label: Some("texture_bind_group_layout"),
            entries: &[
                // Texture
                wgpu::BindGroupLayoutEntry {
                    binding: 0,
                    visibility: wgpu::ShaderStages::FRAGMENT,
                    ty: wgpu::BindingType::Texture {
                        sample_type: wgpu::TextureSampleType::Float { filterable: true },
                        view_dimension: wgpu::TextureViewDimension::D2,
                        multisampled: false,
                    },
                    count: None,
                },
                wgpu::BindGroupLayoutEntry {
                    binding: 1,
                    visibility: wgpu::ShaderStages::FRAGMENT,
                    ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
                    count: None,
                },
                // Normal Map
                wgpu::BindGroupLayoutEntry {
                    binding: 2,
                    visibility: wgpu::ShaderStages::FRAGMENT,
                    ty: wgpu::BindingType::Texture {
                        multisampled: false,
                        sample_type: wgpu::TextureSampleType::Float { filterable: true },
                        view_dimension: wgpu::TextureViewDimension::D2,
                    },
                    count: None,
                },
                wgpu::BindGroupLayoutEntry {
                    binding: 3,
                    visibility: wgpu::ShaderStages::FRAGMENT,
                    ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
                    count: None,
                },
            ],
        })
    }

    pub fn new(
        device: wgpu::Device,
        name: &str,
        diffuse_texture: renderer::Texture,
        normal_texture: renderer::Texture,
        layout: &wgpu::BindGroupLayout,
    ) -> Self {
        let bind_group: BindGroup = device.create_bind_group(&wgpu::BindGroupDescriptor {
            layout,
            label: Some(name),
            entries: &[
                // Texture
                wgpu::BindGroupEntry {
                    binding: 0,
                    resource: wgpu::BindingResource::TextureView(&diffuse_texture.view),
                },
                wgpu::BindGroupEntry {
                    binding: 1,
                    resource: wgpu::BindingResource::Sampler(&diffuse_texture.sampler),
                },
                // Normal
                wgpu::BindGroupEntry {
                    binding: 2,
                    resource: wgpu::BindingResource::TextureView(&diffuse_texture.view),
                },
                wgpu::BindGroupEntry {
                    binding: 3,
                    resource: wgpu::BindingResource::Sampler(&diffuse_texture.sampler),
                },
            ],
        });

        Self {
            name: String::from(name),
            diffuse_texture,
            normal_texture,
            bind_group,
        }
    }
}

#[repr(C)]
#[derive(Debug, Clone, Copy, bytemuck::Pod, bytemuck::Zeroable)]
pub struct Vertex {
    pub position: [f32; 3],
    pub text_cords: [f32; 2],
}

pub struct Mesh {
    pub name: String,
    pub vertex_buffer: wgpu::Buffer,
    pub index_buffer: wgpu::Buffer,
    pub material: usize,
    pub indices: u32,
}