Merge pull request #23949 from Kanabenki/shader-mul-assign-vec-mat

Allow *= operator between vec and mat types in shaders

servers/visual/shader_language.cpp

@@ -1215,6 +1215,15 @@ bool ShaderLanguage::_validate_operator(OperatorNode *p_op, DataType *r_ret_type
 			} else if (p_op->op == OP_ASSIGN_MUL && na == TYPE_MAT4 && nb == TYPE_VEC4) {
 				valid = true;
 				ret_type = TYPE_MAT4;
+			} else if (p_op->op == OP_ASSIGN_MUL && na == TYPE_VEC2 && nb == TYPE_MAT2) {
+				valid = true;
+				ret_type = TYPE_VEC2;
+			} else if (p_op->op == OP_ASSIGN_MUL && na == TYPE_VEC3 && nb == TYPE_MAT3) {
+				valid = true;
+				ret_type = TYPE_VEC3;
+			} else if (p_op->op == OP_ASSIGN_MUL && na == TYPE_VEC4 && nb == TYPE_MAT4) {
+				valid = true;
+				ret_type = TYPE_VEC4;
 			}
 		} break;
 		case OP_ASSIGN_BIT_AND: