Hi, What is the bets way to debug errors in shaders? I have mystica error from PBR: Error: ERROR: 0:1492: 'glossiness' : undeclared identifier ERROR: 0:1492: 'computeHemisphericLighting' : no matching overloaded function found ERROR: 0:1492: 'assign' : cannot convert from 'const mediump float' to 'structure' ERROR: 0:1573: 'computeLighting' : no matching overloaded function found ERROR: 0:1573: 'assign' : cannot convert from 'const mediump float' to 'structure' I cant really fin