Struct MeshClassIndirectParametersBuffers

pub struct MeshClassIndirectParametersBuffers<IP>
where
    IP: Clone + ShaderSize + WriteInto,
{ /* private fields */ }

The buffers containing all the information that indirect draw commands use to draw the scene, for a single mesh class (indexed or non-indexed), for a single phase.

Implementations

impl<IP> MeshClassIndirectParametersBuffers<IP>

where IP: Clone + ShaderSize + WriteInto,

pub fn data_buffer(&self) -> Option<&Buffer>

Returns the GPU buffer that stores the indirect draw parameters for indexed meshes.

The indirect parameters building shader writes to this buffer, while the multi_draw_indirect or multi_draw_indirect_count commands read from it to perform the draws.

pub fn cpu_metadata_buffer(&self) -> Option<&Buffer>

Returns the GPU buffer that holds the CPU-constructed data used to construct indirect draw parameters for meshes.

The CPU writes to this buffer, and the indirect parameters building shader reads this buffer to construct the indirect draw parameters.

pub fn gpu_metadata_buffer(&self) -> Option<&Buffer>

Returns the GPU buffer that holds the GPU-constructed data used to construct indirect draw parameters for meshes.

The GPU mesh preprocessing shader writes to this buffer, and the indirect parameters building shader reads this buffer to construct the indirect draw parameters.

pub fn batch_sets_buffer(&self) -> Option<&Buffer>

Returns the GPU buffer that holds the number of indirect draw commands for each phase of each view.

The indirect parameters building shader writes to this buffer, and the multi_draw_indirect_count command reads from it in order to know how many indirect draw commands to process.

pub fn set(&mut self, index: u32, value: IndirectParametersCpuMetadata)

Sets the IndirectParametersCpuMetadata for the mesh at the given index.

pub fn batch_count(&self) -> usize

Returns the number of batches corresponding to meshes that are currently allocated.

pub fn clear(&mut self)

Clears out all the buffers in preparation for a new frame.