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[Fix] varying bug when using @interpolate #8075

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Merged
merged 2 commits into from
Nov 4, 2025
Merged

[Fix] varying bug when using @interpolate #8075

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582f4eb
fix varying bug
samw-improbable Sep 11, 2025
6f20154
Merge branch 'main' into fix-varying
mvaligursky Nov 4, 2025
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5 changes: 3 additions & 2 deletions src/platform/graphics/webgpu/webgpu-shader-processor-wgsl.js
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ const KEYWORD_RESOURCE = /^[ \t]*var\s*(?:(<storage,[^>]*>)\s*([\w\d_]+)\s*:\s*(

// match varying name from string like: '@interpolate(perspective, centroid) smoothColor : vec3f;'
// eslint-disable-next-line
const VARYING = /(?:@interpolate\([^)]*\)\s*)?([\w]+)\s*:/;
const VARYING = /(?:@interpolate\([^)]*\)\s*)?([\w]+)\s*:\s*([\w<>]+)/;

// marker for a place in the source code to be replaced by code
const MARKER = '@@@';
Expand Down Expand Up @@ -711,6 +711,7 @@ class WebgpuShaderProcessorWGSL {

if (match) {
const name = match[1];
const type = match[2];

if (isVertex) {
// store it in the map
Expand All @@ -727,7 +728,7 @@ class WebgpuShaderProcessorWGSL {
if (!isVertex) {

// private global variable for fragment varying
blockPrivates += ` var<private> ${line};\n`;
blockPrivates += ` var<private> ${name}: ${type};\n`;

// copy input variable to the private variable
blockCopy += ` ${name} = input.${name};\n`;
Expand Down