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Packages ā€ŗ bevy_pbr ā€ŗ meshlet_cull_shared.wgsl

meshlet_cull_shared.wgsl

Import path

Structures

ScreenAabb

#
struct ScreenAabb {
min: vec3<f32> ,
max: vec3<f32> ,
}

Functions

lod_error_is_imperceptible

#

https://github.com/zeux/meshoptimizer/blob/1e48e96c7e8059321de492865165e9ef071bffba/demo/nanite.cpp#L115

fn lod_error_is_imperceptible (
lod_sphere: vec4<f32>
, 
simplification_error: f32
, 
instance_id: u32
) -> bool

normalize_plane

#
fn normalize_plane (
p: vec4<f32>
) -> vec4<f32>

aabb_in_frustum

#

https://fgiesen.wordpress.com/2012/08/31/frustum-planes-from-the-projection-matrix/ https://fgiesen.wordpress.com/2010/10/17/view-frustum-culling/

fn aabb_in_frustum (
aabb: MeshletAabb
, 
instance_id: u32
) -> bool

min8

#
fn min8 (
a: vec3<f32>
, 
b: vec3<f32>
, 
c: vec3<f32>
, 
d: vec3<f32>
, 
e: vec3<f32>
, 
f: vec3<f32>
, 
g: vec3<f32>
, 
h: vec3<f32>
) -> vec3<f32>

max8

#
fn max8 (
a: vec3<f32>
, 
b: vec3<f32>
, 
c: vec3<f32>
, 
d: vec3<f32>
, 
e: vec3<f32>
, 
f: vec3<f32>
, 
g: vec3<f32>
, 
h: vec3<f32>
) -> vec3<f32>

min8_4

#
fn min8_4 (
a: vec4<f32>
, 
b: vec4<f32>
, 
c: vec4<f32>
, 
d: vec4<f32>
, 
e: vec4<f32>
, 
f: vec4<f32>
, 
g: vec4<f32>
, 
h: vec4<f32>
) -> vec4<f32>

project_aabb

#

https://zeux.io/2023/01/12/approximate-projected-bounds/

fn project_aabb (
clip_from_local: mat4x4<f32>
, 
near: f32
, 
aabb: MeshletAabb
, 
out: ptr<function, ScreenAabb>
) -> bool

sample_hzb

#
fn sample_hzb (
smin: vec2<u32>
, 
smax: vec2<u32>
, 
mip: i32
) -> f32

sample_hzb_row

#
fn sample_hzb_row (
sx: vec4<u32>
, 
sy: u32
, 
mip: i32
) -> f32

occlusion_cull_screen_aabb

#
fn occlusion_cull_screen_aabb (
aabb: ScreenAabb
, 
screen: vec2<f32>
) -> bool

occlusion_cull_projection

#
fn occlusion_cull_projection ()

occlusion_cull_clip_from_local

#
fn occlusion_cull_clip_from_local (
instance_id: u32
) -> mat4x4<f32>

should_occlusion_cull_aabb

#
fn should_occlusion_cull_aabb (
aabb: MeshletAabb
, 
instance_id: u32
) -> bool