extern cvar_t r_sky_scissor;
extern cvar_t r_q3bsp_renderskydepth;
extern int skyrenderlater, skyrendermasked;
-extern int skyscissor;
-extern float skyscissormins[3];
-extern float skyscissormaxs[3];
+extern int skyscissor[4];
int R_SetSkyBox(const char *sky);
void R_SkyStartFrame(void);
void R_Sky(void);