GL_ARB_ES3_2_compatibility http://www.opengl.org/registry/specs/ARB/ES3_2_compatibility.txt GL_ARB_ES3_2_compatibility GL_PRIMITIVE_BOUNDING_BOX_ARB 0x92BE GL_MULTISAMPLE_LINE_WIDTH_RANGE_ARB 0x9381 GL_MULTISAMPLE_LINE_WIDTH_GRANULARITY_ARB 0x9382 void glPrimitiveBoundingBoxARB (GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW)