mesh_preprocess.wesl

Bindings

current_input

#

@group(0)

@binding(3)

var<storage> current_input: array<MeshInput>

previous_input

#

@group(0)

@binding(4)

var<storage> previous_input: array<PreviousMeshInput>

work_items

#

@group(0)

@binding(5)

var<storage> work_items: array<PreprocessWorkItem>

output

#

@group(0)

@binding(6)

var<storage, read_write> output: array<Mesh>

indirect_parameters_metadata

#

@group(0)

@binding(7)

var<storage, read_write> indirect_parameters_metadata: array<IndirectParametersMetadata>

mesh_culling_data

#

@group(0)

@binding(9)

var<storage> mesh_culling_data: array<MeshCullingData>

visibility_ranges

#

@group(0)

@binding(10)

var<storage> visibility_ranges: array<vec4<f32>>

depth_pyramid

#

@if(OCCLUSION_CULLING)

@group(0)

@binding(11)

var depth_pyramid: texture_2d<f32>

late_preprocess_work_items

#

@group(0)

@binding(12)

var<storage, read_write> late_preprocess_work_items: array<PreprocessWorkItem>

late_preprocess_work_item_indirect_parameters

#

@group(0)

@binding(13)

var<storage, read_write> late_preprocess_work_item_indirect_parameters: array<LatePreprocessWorkItemIndirectParameters>

@if(OCCLUSION_CULLING && LATE_PHASE)

@group(0)

@binding(13)

var<storage, read> late_preprocess_work_item_indirect_parameters: array<LatePreprocessWorkItemIndirectParameters>

Structures

MeshCullingData

#

At the moment, this just consists of its axis-aligned bounding box (AABB).

struct MeshCullingData {

aabb_center: vec4<f32> ,

aabb_half_extents: vec4<f32> ,

}

LatePreprocessWorkItemIndirectParameters

#

The parameters for the indirect compute dispatch for the late mesh preprocessing phase.

struct LatePreprocessWorkItemIndirectParameters {

@if(LATE_PHASE)

dispatch_x: u32 ,

@else()

dispatch_x: atomic<u32> ,

dispatch_y: u32 ,

dispatch_z: u32 ,

@if(LATE_PHASE)

work_item_count: u32 ,

@else()

work_item_count: atomic<u32> ,

pad: vec4<u32> ,

}

Immediates

#

These have to be in a structure because of Naga limitations on DX12.

struct Immediates {

late_preprocess_work_item_indirect_offset: u32 ,

}

Functions

view_frustum_intersects_obb

#

aabb_center.w should be 1.0.

fn view_frustum_intersects_obb (

world_from_local: mat4x4<f32>

,

aabb_center: vec4<f32>

,

aabb_half_extents: vec3<f32>

) -> bool

main

#

fn main (

@builtin(global_invocation_id)

global_invocation_id: vec3<u32>

)