Struct nannou::ui::backend::glium::glium::program::ComputeShader

pub struct ComputeShader { /* fields omitted */ }

A combination of compute shaders linked together.

Methods

impl ComputeShader

pub fn is_supported<C>(ctxt: &C) -> bool where
    C: CapabilitiesSource + ?Sized, 

Returns true if the backend supports compute shaders.

pub fn from_source<F>(
    facade: &F,
    src: &str
) -> Result<ComputeShader, ProgramCreationError> where
    F: Facade + ?Sized, 

Builds a new compute shader from some source code.

pub fn from_binary<F>(
    facade: &F,
    data: Binary
) -> Result<ComputeShader, ProgramCreationError> where
    F: Facade + ?Sized, 

Builds a new compute shader from some binary.

pub fn execute<U>(&self, uniforms: U, x: u32, y: u32, z: u32) where
    U: Uniforms, 

Executes the compute shader.

x * y * z work groups will be started. The current work group can be retrieved with gl_WorkGroupID. Inside each work group, additional local work groups can be started depending on the attributes of the compute shader itself.

pub fn execute_indirect<U>(
    &self,
    uniforms: U,
    buffer: BufferSlice<ComputeCommand>
) where
    U: Uniforms, 

Executes the compute shader.

This is similar to execute, except that the parameters are stored in a buffer.

pub fn get_binary(&self) -> Result<Binary, GetBinaryError>

Returns the program's compiled binary.

You can store the result in a file, then reload it later. This avoids having to compile the source code every time.

pub fn get_uniform(&self, name: &str) -> Option<&Uniform>

Returns informations about a uniform variable, if it exists.

Important traits for Iter<'a, K, V>

impl<'a, K, V> Iterator for Iter<'a, K, V> type Item = (&'a K, &'a V);

pub fn uniforms(&self) -> Iter<String, Uniform>

Returns an iterator to the list of uniforms.

Example

for (name, uniform) in program.uniforms() {
    println!("Name: {} - Type: {:?}", name, uniform.ty);
}

pub fn get_uniform_blocks(
    &self
) -> &HashMap<String, UniformBlock, BuildHasherDefault<FnvHasher>>

Returns a list of uniform blocks.

Example

for (name, uniform) in program.get_uniform_blocks() {
    println!("Name: {}", name);
}

pub fn get_shader_storage_blocks(
    &self
) -> &HashMap<String, UniformBlock, BuildHasherDefault<FnvHasher>>

Returns the list of shader storage blocks.

Example

for (name, uniform) in program.get_shader_storage_blocks() {
    println!("Name: {}", name);
}

Trait Implementations

impl GlObject for ComputeShader

type Id = Handle

The type of identifier for this object.

fn get_id(&self) -> Handle

Returns the id of the object.

impl Debug for ComputeShader

fn fmt(&self, formatter: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.