pub trait AsStd140 {
type Output: Std140;
// Required methods
fn as_std140(&self) -> Self::Output;
fn from_std140(val: Self::Output) -> Self;
// Provided method
fn std140_size_static() -> usize { ... }
}Expand description
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 math crates, like cgmath, nalgebra, and
ultraviolet support mint.
§Example
uniform CAMERA {
mat4 view;
mat4 projection;
} camera;
use crevice::std140::AsStd140;
#[derive(AsStd140)]
struct CameraUniform {
view: mint::ColumnMatrix4<f32>,
projection: mint::ColumnMatrix4<f32>,
}
let view: mint::ColumnMatrix4<f32> = todo!("your math code here");
let projection: mint::ColumnMatrix4<f32> = todo!("your math code here");
let camera = CameraUniform {
view,
projection,
};
let camera_std140 = camera.as_std140();
write_to_gpu_buffer(camera_std140.as_bytes());Required Associated Types§
Required Methods§
sourcefn from_std140(val: Self::Output) -> Self
fn from_std140(val: Self::Output) -> Self
Converts from std140 version of self to self.
Provided Methods§
sourcefn std140_size_static() -> usize
fn std140_size_static() -> usize
Returns the size of the std140 version of this type. Useful for
pre-sizing buffers.
Object Safety§
This trait is not object safe.