Struct Shader 

pub struct Shader {
    pub workers: Workers,
    pub id: u32,
    pub is_compute: bool,
    pub tex_ids: Vec<Option<u32>>,
    pub sbo_ids: Vec<Option<u32>>,
}

A handle to an OpenGL shader program.

Supports both pipeline (vertex+fragment) and compute shaders. Manages texture and storage-buffer bindings for automatic binding during rendering or compute dispatch.

Uniform setters

The set_* family of methods sets uniform variables by name. They will panic if the uniform does not exist (use uniform_location for optional lookups).

Fields

workers: Workers

id: u32

is_compute: bool

tex_ids: Vec<Option<u32>>

sbo_ids: Vec<Option<u32>>

Implementations

impl Shader

pub fn new(id: u32, is_compute: bool) -> Self

Wraps an existing GL program ID.

is_compute controls whether textures are bound via BindImageTexture (compute) or glActiveTexture / glBindTexture (render).

pub fn attach_tex(&mut self, tex: &Texture2D)

Attaches a texture to the first available (empty) texture slot.

pub fn attach_sbo(&mut self, sbo: &StorageBuffer)

Attaches a storage buffer to the first available (empty) SSBO slot.

pub fn set_tex_at_slot(&mut self, tex: &Texture2D, slot: Slot)

Binds a texture to a specific slot.

pub fn set_sbo_at_slot(&mut self, sbo: &StorageBuffer, slot: Slot)

Binds a storage buffer to a specific slot.

pub fn delete(self)

Deletes the underlying GL program.

pub fn bind(&self)

Binds this shader program (glUseProgram).

pub fn unbind(&self)

Unbinds the current shader (binds program 0).

pub fn compute(&self)

Dispatches compute with the currently bound textures and SSBOs.

Calls glDispatchCompute(workers) followed by a memory barrier for shader image access and shader storage access.

pub fn uniform_location(&self, name: &str) -> Option<u32>

Looks up a uniform location by name, returning None if not found.

pub fn texture_binds(&self) -> Vec<(u32, u32)>

Returns all (slot, tex_id) pairs for currently bound textures.

pub fn storage_binds(&self) -> Vec<(u32, u32)>

Returns all (slot, sbo_id) pairs for currently bound storage buffers.

pub fn bind_textures(&self)

Binds all attached textures (image uniforms for compute, sampler2D for pipeline).

pub fn bind_storages(&self)

Binds all attached storage buffers to their slots.

pub fn set_i32(&self, name: &str, v: i32)

Sets an int uniform.

pub fn set_u32(&self, name: &str, v: u32)

Sets a uint uniform.

pub fn set_f32(&self, name: &str, v: f32)

Sets a float uniform.

pub fn set_vec2_f32(&self, name: &str, v: Vector2<f32>)

Sets a vec2 uniform.

pub fn set_vec3_f32(&self, name: &str, v: Vector3<f32>)

Sets a vec3 uniform.

pub fn set_vec4_f32(&self, name: &str, v: Vector4<f32>)

Sets a vec4 uniform.

pub fn set_vec2_i32(&self, name: &str, v: Vector2<i32>)

Sets an ivec2 uniform.

pub fn set_vec3_i32(&self, name: &str, v: Vector3<i32>)

Sets an ivec3 uniform.

pub fn set_vec4_i32(&self, name: &str, v: Vector4<i32>)

Sets an ivec4 uniform.

pub fn set_vec2_u32(&self, name: &str, v: Vector2<u32>)

Sets a uvec2 uniform.

pub fn set_vec3_u32(&self, name: &str, v: Vector3<u32>)

Sets a uvec3 uniform.

pub fn set_vec4_u32(&self, name: &str, v: Vector4<u32>)

Sets a uvec4 uniform.

pub fn set_m2_f32(&self, name: &str, m: Matrix2<f32>)

Sets a mat2 uniform.

pub fn set_m3_f32(&self, name: &str, m: Matrix3<f32>)

Sets a mat3 uniform.

pub fn set_m4_f32(&self, name: &str, m: Matrix4<f32>)

Sets a mat4 uniform.

Trait Implementations

impl Clone for Shader

fn clone(&self) -> Shader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Shader

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

Formats the value using the given formatter.