Struct gfx_hal::pso::SpecializationConstant

pub struct SpecializationConstant {
    pub id: u32,
    pub range: Range<u16>,
}

Specialization constant for pipelines.

Specialization constants allow for easy configuration of multiple similar pipelines. For example, there may be a boolean exposed to the shader that switches the specularity on/off provided via a specialization constant. That would produce separate PSO’s for the “on” and “off” states but they share most of the internal stuff and are fast to produce. More importantly, they are fast to execute, since the driver can optimize out the branch on that other PSO creation.

Fields

id: u32

Constant identifier in shader source.

range: Range<u16>

Value to override specialization constant.

Trait Implementations

impl Clone for SpecializationConstant

fn clone(&self) -> SpecializationConstant

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SpecializationConstant

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

Formats the value using the given formatter.