Add regex to remove leading underscore from shader identifiers

CesiumGS · May 30, 2017 · e1526b2 · e1526b2
1 parent 3449df8
commit e1526b2
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/processModelMaterialsCommon.js b/lib/processModelMaterialsCommon.js
@@ -812,7 +812,9 @@ function ensureSemanticExistenceForPrimitive(gltf, primitive) {
                 var accessorId = attributes[semantic];
                 var accessor = accessors[accessorId];
                 var lowerCase = semantic.toLowerCase();
+                lowerCase = lowerCase.replace(/^_*/g, "");  // Remove all starting _ from name. GLSL does not allow __ double underscores
                 var attributeName = 'a_' + lowerCase;
+
                 technique.parameters[lowerCase] = {
                     semantic: semantic,
                     type: accessor.componentType