// DepthRange calls glDepthRange func DepthRange(zNear, zFar float64) { C.glDepthRange(C.GLclampd(zNear), C.GLclampd(zFar)) }
//void glDepthRange (GLclampd zNear, GLclampd zFar) func DepthRange(zNear GLclampd, zFar GLclampd) { C.glDepthRange(C.GLclampd(zNear), C.GLclampd(zFar)) }