WGSL version of LTC shader chunk used to evaluate area lights (#7625)

Co-authored-by: Martin Valigursky <[email protected]>

Author: mvaligursky

src/platform/graphics/webgpu/webgpu-shader-processor-wgsl.js

@@ -32,7 +32,7 @@ const KEYWORD_LINE = /^[ \t]*(attribute|varying|uniform)[ \t]*([^;]+)(;+)/gm;
 
 // match global variables of type texture, storage buffer, storage texture or external texture
 // eslint-disable-next-line
-const KEYWORD_RESOURCE = /^[ \t]*var\s*(<[^>]+>)?\s*[\w\d_]+\s*:\s*(texture_.*|storage_texture_.*|storage.*|external_texture|array<.*>|sampler|sampler_comparison).*;\s*$/gm;
+const KEYWORD_RESOURCE = /^[ \t]*var\s*(<[^>]+>)?\s*[\w\d_]+\s*:\s*(texture_.*|storage_texture_.*|storage.*|external_texture|sampler|sampler_comparison).*;\s*$/gm;
 
 // match varying name from string like: '@interpolate(perspective, centroid) smoothColor : vec3f;'
 // eslint-disable-next-line

src/scene/shader-lib/chunks-wgsl/chunks-wgsl.js

@@ -81,7 +81,7 @@ import litOtherMainPS from './lit/frag/pass-other/litOtherMain.js';
 import litShaderArgsPS from './standard/frag/litShaderArgs.js';
 import litShaderCorePS from './standard/frag/litShaderCore.js';
 import litShadowMainPS from './lit/frag/pass-shadow/litShadowMain.js';
-// import ltcPS from './lit/frag/ltc.js';
+import ltcPS from './lit/frag/ltc.js';
 import metalnessPS from './standard/frag/metalness.js';
 import msdfPS from './common/frag/msdf.js';
 import metalnessModulatePS from './lit/frag/metalnessModulate.js';
@@ -290,7 +290,7 @@ const shaderChunksWGSL = {
     litShaderArgsPS,
     litShaderCorePS,
     litShadowMainPS,
-    // ltcPS,
+    ltcPS,
     metalnessPS,
     metalnessModulatePS,
     morphPS,