mumin16osx

my os : sonoma osx i modified source shader code for gles 3-iphone -ipad: Remove the "glBindFragDataLocation" line. This is not necessary and not supported. Change the shaders to use...

i traced all source code. all shader compilation , handles, locations okey. but in gltBeginDraw, glUseProgram's handle turn 0(INVALID_HANDLE).