void color(float r, float g, float b) { color(r, g, b, 1); }
void color(float r, float g, float b, float a) { cr=r; cg=g; cb=b; ca=a; }
void attrib(unsigned i, float x) { attrib(i, x, 0, 0, 1); }
void color(float r, float g, float b) { color(r, g, b, 1); }
void color(float r, float g, float b, float a) { cr=r; cg=g; cb=b; ca=a; }
void attrib(unsigned i, float x) { attrib(i, x, 0, 0, 1); }