Mirrors/bevy
2
0
Fork 0
mirror of https://github.com/bevyengine/bevy synced 2024-11-10 07:04:33 +00:00
Code Issues Projects Releases Packages Wiki Activity

Fix sampling of diffuse env map texture with non-uniform control flow (#10276)

Browse source 
# Objective

- `deferred_rendering` and `load_gltf` fail in WebGPU builds due to
textureSample() being called on the diffuse environment map texture
after non-uniform control flow

## Solution

- The diffuse environment map texture only has one mip, so use
`textureSampleLevel(..., 0.0)` to sample that mip and not require UV
gradient calculation.
This commit is contained in:
Robert Swain 2023-10-27 03:35:19 +02:00 committed by GitHub
parent 134750d18e
commit 0f54a82e3b
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
crates/bevy_pbr/src/environment_map/environment_map.wgsl
View file

@ -22,7 +22,7 @@ fn environment_map_light(
// Technically we could use textureNumLevels(environment_map_specular) - 1 here, but we use a uniform
// because textureNumLevels() does not work on WebGL2
let radiance_level = perceptual_roughness * f32(bindings::lights.environment_map_smallest_specular_mip_level);
let irradiance = textureSample(bindings::environment_map_diffuse, bindings::environment_map_sampler, vec3(N.xy, -N.z)).rgb;
let irradiance = textureSampleLevel(bindings::environment_map_diffuse, bindings::environment_map_sampler, vec3(N.xy, -N.z), 0.0).rgb;
let radiance = textureSampleLevel(bindings::environment_map_specular, bindings::environment_map_sampler, vec3(R.xy, -R.z), radiance_level).rgb;
// No real world material has specular values under 0.02, so we use this range as a