// renders a mesh
void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int *elements, int bufferobject, size_t bufferoffset);
-// renders a mesh as lines
-void R_Mesh_Draw_ShowTris(int firstvertex, int numvertices, int numtriangles, const int *elements);
// saves a section of the rendered frame to a .tga or .jpg file
qboolean SCR_ScreenShot(char *filename, unsigned char *buffer1, unsigned char *buffer2, unsigned char *buffer3, int x, int y, int width, int height, qboolean flipx, qboolean flipy, qboolean flipdiagonal, qboolean jpeg, qboolean gammacorrect);