pub trait VertexWriteTrait: VertexReadTrait {
// Required methods
fn write_2_f32(
&mut self,
usage: VertexAttributeUsage,
value: Vector2<f32>,
) -> Result<(), VertexFetchError>;
fn write_3_f32(
&mut self,
usage: VertexAttributeUsage,
value: Vector3<f32>,
) -> Result<(), VertexFetchError>;
fn write_4_f32(
&mut self,
usage: VertexAttributeUsage,
value: Vector4<f32>,
) -> Result<(), VertexFetchError>;
fn write_4_u8(
&mut self,
usage: VertexAttributeUsage,
value: Vector4<u8>,
) -> Result<(), VertexFetchError>;
// Provided method
fn cast_attribute<T: Copy>(
&mut self,
usage: VertexAttributeUsage,
) -> Result<&mut T, VertexFetchError> { ... }
}Expand description
A trait for read/write vertex data accessor.
Required Methods§
Sourcefn write_2_f32(
&mut self,
usage: VertexAttributeUsage,
value: Vector2<f32>,
) -> Result<(), VertexFetchError>
fn write_2_f32( &mut self, usage: VertexAttributeUsage, value: Vector2<f32>, ) -> Result<(), VertexFetchError>
Tries to write an attribute with given usage as a pair of two f32.
Sourcefn write_3_f32(
&mut self,
usage: VertexAttributeUsage,
value: Vector3<f32>,
) -> Result<(), VertexFetchError>
fn write_3_f32( &mut self, usage: VertexAttributeUsage, value: Vector3<f32>, ) -> Result<(), VertexFetchError>
Tries to write an attribute with given usage as a pair of three f32.
Sourcefn write_4_f32(
&mut self,
usage: VertexAttributeUsage,
value: Vector4<f32>,
) -> Result<(), VertexFetchError>
fn write_4_f32( &mut self, usage: VertexAttributeUsage, value: Vector4<f32>, ) -> Result<(), VertexFetchError>
Tries to write an attribute with given usage as a pair of four f32.
Sourcefn write_4_u8(
&mut self,
usage: VertexAttributeUsage,
value: Vector4<u8>,
) -> Result<(), VertexFetchError>
fn write_4_u8( &mut self, usage: VertexAttributeUsage, value: Vector4<u8>, ) -> Result<(), VertexFetchError>
Tries to write an attribute with given usage as a pair of four u8.
Provided Methods§
Sourcefn cast_attribute<T: Copy>(
&mut self,
usage: VertexAttributeUsage,
) -> Result<&mut T, VertexFetchError>
fn cast_attribute<T: Copy>( &mut self, usage: VertexAttributeUsage, ) -> Result<&mut T, VertexFetchError>
Tries to find an attribute of the given type and returns a mutable reference of the specified
type. Type casting will fail if the size of the destination type T does not match the
actual attribute size.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".