Struct Uniforms 

#[repr(C)]
pub struct Uniforms {
    pub mvp: [[f32; 4]; 4],
    pub gamma: f32,
    pub _padding: [f32; 3],
}

Uniform data structure

This corresponds to the Uniforms struct in the C++ implementation. Contains the MVP matrix and gamma correction value.

Fields

mvp: [[f32; 4]; 4]

Model-View-Projection matrix (4x4 f32 matrix)

gamma: f32

Gamma correction value

_padding: [f32; 3]

Padding to ensure proper alignment

Implementations

impl Uniforms

pub fn new() -> Self

Create new uniforms with identity matrix and default gamma

pub fn create_orthographic_matrix( display_pos: [f32; 2], display_size: [f32; 2], ) -> [[f32; 4]; 4]

Create orthographic projection matrix for Dear ImGui

This matches the matrix calculation in ImGui_ImplWGPU_SetupRenderState

pub fn gamma_for_format(format: TextureFormat) -> f32

Determine gamma value based on texture format

This matches the gamma detection logic in ImGui_ImplWGPU_SetupRenderState from the official C++ implementation, supporting all sRGB texture formats.

pub fn set_mvp(&mut self, mvp: [[f32; 4]; 4])

Update the MVP matrix

pub fn set_gamma(&mut self, gamma: f32)

Update the gamma value

pub fn update(&mut self, mvp: [[f32; 4]; 4], gamma: f32)

Update both MVP and gamma

Trait Implementations

impl Clone for Uniforms

fn clone(&self) -> Uniforms

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Uniforms

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Uniforms

fn default() -> Self

Returns the “default value” for a type.

impl Zeroable for Uniforms

fn zeroed() -> Self

Calls zeroed.

impl Copy for Uniforms

impl Pod for Uniforms