Struct naga::back::glsl::TextureMapping

pub struct TextureMapping {
    pub texture: Handle<GlobalVariable>,
    pub sampler: Option<Handle<GlobalVariable>>,
}

Mapping between a texture and its sampler, if it exists.

GLSL pre-Vulkan has no concept of separate textures and samplers. Instead, everything is a gsamplerN where g is the scalar type and N is the dimension. But naga uses separate textures and samplers in the IR, so the backend produces a FastHashMap with the texture name as a key and a TextureMapping as a value. This way, the user knows where to bind.

Storage images produce gimageN and don’t have an associated sampler, so the sampler field will be None.

Fields

texture: Handle<GlobalVariable>

Handle to the image global variable.

sampler: Option<Handle<GlobalVariable>>

Handle to the associated sampler global variable, if it exists.

Trait Implementations

impl Clone for TextureMapping

fn clone(&self) -> TextureMapping

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TextureMapping

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

Formats the value using the given formatter.