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Fix WebGL mode for Adreno GPUs (#8508)

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# Objective

- This fixes a crash when loading shaders, when running an Adreno GPU
and using WebGL mode.
- Fixes #8506 
- Fixes #8047

## Solution

- The shader pbr_functions.wgsl, will fail in apply_fog function, trying
to access values that are null on Adreno chipsets using WebGL, these
devices are commonly found in android handheld devices.

---------

Co-authored-by: Carter Anderson <mcanders1@gmail.com>
Co-authored-by: François <mockersf@gmail.com>
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TotalKrill 2023-06-29 06:32:04 +02:00 committed by GitHub
parent aeeb20ec4c
commit d90c65d25f
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6
crates/bevy_pbr/src/render/light.rs
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@ -216,6 +216,12 @@ pub struct GpuLights {
// NOTE: this must be kept in sync with the same constants in pbr.frag
pub const MAX_UNIFORM_BUFFER_POINT_LIGHTS: usize = 256;
//NOTE: When running bevy on Adreno GPU chipsets in WebGL, any value above 1 will result in a crash
// when loading the wgsl "pbr_functions.wgsl" in the function apply_fog.
#[cfg(all(feature = "webgl", target_arch = "wasm32"))]
pub const MAX_DIRECTIONAL_LIGHTS: usize = 1;
#[cfg(any(not(feature = "webgl"), not(target_arch = "wasm32")))]
pub const MAX_DIRECTIONAL_LIGHTS: usize = 10;
#[cfg(any(not(feature = "webgl"), not(target_arch = "wasm32")))]
pub const MAX_CASCADES_PER_LIGHT: usize = 4;