Struct MeshInputUniform

#[repr(C)]
pub struct MeshInputUniform {
    pub world_from_local: [Vec4; 3],
    pub lightmap_uv_rect: UVec2,
    pub flags: u32,
    pub previous_input_index: u32,
    pub first_vertex_index: u32,
    pub pad_a: u32,
    pub pad_b: u32,
    pub pad_c: u32,
}

Information that has to be transferred from CPU to GPU in order to produce the full MeshUniform.

This is essentially a subset of the fields in MeshUniform above.

Fields

world_from_local: [Vec4; 3]

Affine 4x3 matrix transposed to 3x4.

lightmap_uv_rect: UVec2

Four 16-bit unsigned normalized UV values packed into a UVec2:

                        <--- MSB                   LSB --->
                        +---- min v ----+ +---- min u ----+
    lightmap_uv_rect.x: vvvvvvvv vvvvvvvv uuuuuuuu uuuuuuuu,
                        +---- max v ----+ +---- max u ----+
    lightmap_uv_rect.y: VVVVVVVV VVVVVVVV UUUUUUUU UUUUUUUU,

(MSB: most significant bit; LSB: least significant bit.)

flags: u32

Various MeshFlags.

previous_input_index: u32

The index of this mesh’s MeshInputUniform in the previous frame’s buffer, if applicable.

This is used for TAA. If not present, this will be u32::MAX.

first_vertex_index: u32

The index of this mesh’s first vertex in the vertex buffer.

Multiple meshes can be packed into a single vertex buffer (see MeshAllocator). This value stores the offset of the first vertex in this mesh in that buffer.

pad_a: u32

Padding.

pad_b: u32

Padding.

pad_c: u32

Padding.

Trait Implementations

impl Clone for MeshInputUniform

fn clone(&self) -> MeshInputUniform

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl CreateFrom for MeshInputUniform

where MeshInputUniform: ShaderType<ExtraMetadata = StructMetadata<8>>, [Vec4; 3]: for<'__> CreateFrom, UVec2: for<'__> CreateFrom, u32: for<'__> CreateFrom + for<'__> CreateFrom + for<'__> CreateFrom + for<'__> CreateFrom + for<'__> CreateFrom + for<'__> CreateFrom,

fn create_from<B>(reader: &mut Reader<B>) -> MeshInputUniform

where B: BufferRef,

impl ReadFrom for MeshInputUniform

where MeshInputUniform: ShaderType<ExtraMetadata = StructMetadata<8>>, [Vec4; 3]: for<'__> ReadFrom, UVec2: for<'__> ReadFrom, u32: for<'__> ReadFrom + for<'__> ReadFrom + for<'__> ReadFrom + for<'__> ReadFrom + for<'__> ReadFrom + for<'__> ReadFrom,

fn read_from<B>(&mut self, reader: &mut Reader<B>)

where B: BufferRef,

impl ShaderSize for MeshInputUniform

where [Vec4; 3]: ShaderSize, UVec2: ShaderSize, u32: ShaderSize,

const SHADER_SIZE: NonZero<u64> = _

Represents WGSL Size (equivalent to ShaderType::min_size)

impl ShaderType for MeshInputUniform

where [Vec4; 3]: ShaderType + ShaderSize, UVec2: ShaderType + ShaderSize, u32: ShaderType + ShaderSize,

fn size(&self) -> NonZero<u64>

Returns the size of Self at runtime

fn min_size() -> NonZero<u64>

Represents the minimum size of Self (equivalent to GPUBufferBindingLayout.minBindingSize)

fn assert_uniform_compat()

Asserts that Self meets the requirements of the uniform address space restrictions on stored values and the uniform address space layout constraints

impl WriteInto for MeshInputUniform

where MeshInputUniform: ShaderType<ExtraMetadata = StructMetadata<8>>, [Vec4; 3]: for<'__> WriteInto, UVec2: for<'__> WriteInto, u32: for<'__> WriteInto + for<'__> WriteInto + for<'__> WriteInto + for<'__> WriteInto + for<'__> WriteInto + for<'__> WriteInto,

fn write_into<B>(&self, writer: &mut Writer<B>)

where B: BufferMut,

impl Zeroable for MeshInputUniform

fn zeroed() -> Self

Calls zeroed.

impl Copy for MeshInputUniform

impl Pod for MeshInputUniform