-extern cvar_t mod_noshader_default_offsetmapping;
-extern cvar_t mod_q3shader_default_offsetmapping;
-extern cvar_t mod_q3shader_default_offsetmapping_scale;
-extern cvar_t mod_q3shader_default_offsetmapping_bias;
-extern cvar_t mod_q3shader_default_polygonoffset;
-extern cvar_t mod_q3shader_default_polygonfactor;
-extern cvar_t mod_q3shader_force_addalpha;
-extern cvar_t mod_q3shader_force_terrain_alphaflag;