question: disallows glsl fragment shaders to use different colors for front and back facing colors . with this , gl_backcolor in the vertex shader is ignored . it is disabled by default . concode_field_sep int VERTEX concode_elem_sep int GEOMETRY concode_elem_sep int FRAGMENT concode_field_sep void enableTwoSide concode_elem_sep void disablePointSize concode_elem_sep void enablePointSize concode_elem_sep void loadIndex concode_elem_sep StringBuilder loadSourceAsStringBuilder concode_elem_sep int compileShaderFromSource concode_elem_sep String loadSource concode_elem_sep int addProgram concode_elem_sep int addProgram concode_elem_sep String getMaxGLSLVersion
target: void function ( ) { GL11 . glDisable ( GL20 . GL_VERTEX_PROGRAM_TWO_SIDE ) ; }