const char* cc3D_Skybox_vert = STRINGIFY( attribute vec4 a_position; varying vec3 v_reflect; void main(void) { mat4 MVMatrixLimited = CC_MVMatrix; MVMatrixLimited[0][3] = 0.0; MVMatrixLimited[1][3] = 0.0; MVMatrixLimited[2][3] = 0.0; vec4 position = MVMatrixLimited* a_position; v_reflect = a_position.xyz; gl_Position = position.xyww; } );