[−][src]Trait crevice::std140::AsStd140

pub trait AsStd140 {
    type Std140Type: Std140;
    fn as_std140(&self) -> Self::Std140Type;

    fn std140_size(&self) -> usize { ... }
}

Trait implemented for all types that can be turned into std140 values.

This trait can often be #[derive]'d instead of manually implementing it. Any struct which contains only fields that also implement AsStd140 can derive AsStd140.

Types from the mint crate implement AsStd140, making them convenient for use in uniform types. Most Rust geometry crates, like cgmath, nalgebra, and ultraviolet support mint.

Example

uniform CAMERA {
    mat4 view;
    mat4 projection;
} camera;

use cgmath::prelude::*;
use cgmath::{Matrix4, Deg, perspective};
use crevice::std140::{AsStd140, Std140};

#[derive(AsStd140)]
struct CameraUniform {
    view: mint::ColumnMatrix4<f32>,
    projection: mint::ColumnMatrix4<f32>,
}

let camera = CameraUniform {
    view: Matrix4::identity().into(),
    projection: perspective(Deg(60.0), 16.0/9.0, 0.01, 100.0).into(),
};

let camera_std140 = camera.as_std140();
write_to_gpu_buffer(camera_std140.as_bytes());

Associated Types

`type Std140Type: Std140`

The std140 version of this value.

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Required methods

`fn as_std140(&self) -> Self::Std140Type`

Convert this value into the std140 version of itself.

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Provided methods

`fn std140_size(&self) -> usize`

Returns the size of the std140 version of this type. Useful for pre-sizing buffers.

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Implementations on Foreign Types

`impl AsStd140 for Vector2<f32>`[src]

`type Std140Type = Vec2`

`fn as_std140(&self) -> Self::Std140Type`[src]

`impl AsStd140 for Vector3<f32>`[src]

`type Std140Type = Vec3`

`fn as_std140(&self) -> Self::Std140Type`[src]

`impl AsStd140 for Vector4<f32>`[src]

`type Std140Type = Vec4`

`fn as_std140(&self) -> Self::Std140Type`[src]

`impl AsStd140 for ColumnMatrix2<f32>`[src]

`type Std140Type = Mat2`

`fn as_std140(&self) -> Self::Std140Type`[src]

`impl AsStd140 for ColumnMatrix3<f32>`[src]

`type Std140Type = Mat3`

`fn as_std140(&self) -> Self::Std140Type`[src]

`impl AsStd140 for ColumnMatrix4<f32>`[src]

`type Std140Type = Mat4`

`fn as_std140(&self) -> Self::Std140Type`[src]

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Implementors

`impl<T> AsStd140 for T where T: Std140,` [src]

`type Std140Type = Self`

`fn as_std140(&self) -> Self`[src]

`impl<T: AsStd140> AsStd140 for DynamicUniform<T>`[src]

`type Std140Type = DynamicUniformStd140<<T as AsStd140>::Std140Type>`

`fn as_std140(&self) -> Self::Std140Type`[src]

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