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gate depth reads on !WEBGL2 (#10365)

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# Objective

fix #10364 

## Solution

gate depth prepass reads in pbr_transmission.wgsl by `#ifndef WEBGL2`
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robtfm 2023-11-04 02:02:49 +00:00 committed by GitHub
parent 1e35a06e29
commit cd594221cf
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crates/bevy_pbr/src/render/pbr_transmission.wgsl
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@ -60,11 +60,13 @@ fn fetch_transmissive_background_non_rough(offset_position: vec2<f32>, frag_coor
);
#ifdef DEPTH_PREPASS
#ifndef WEBGL2
// Use depth prepass data to reject values that are in front of the current fragment
if prepass_utils::prepass_depth(vec4<f32>(offset_position * view_bindings::view.viewport.zw, 0.0, 0.0), 0u) > frag_coord.z {
background_color.a = 0.0;
}
#endif
#endif
#ifdef TONEMAP_IN_SHADER
background_color = approximate_inverse_tone_mapping(background_color, view_bindings::view.color_grading);
@ -157,10 +159,12 @@ fn fetch_transmissive_background(offset_position: vec2<f32>, frag_coord: vec3<f3
);
#ifdef DEPTH_PREPASS
#ifndef WEBGL2
// Use depth prepass data to reject values that are in front of the current fragment
if prepass_utils::prepass_depth(vec4<f32>(modified_offset_position * view_bindings::view.viewport.zw, 0.0, 0.0), 0u) > frag_coord.z {
sample = vec4<f32>(0.0);
}
#endif
#endif
// As blur intensity grows higher, gradually limit *very bright* color RGB values towards a