There is lots of redundant/useless stuff in the renderer that should be removed
e.g. tr_init.c
cvar_t *r_ext_NV_fog_dist;
cvar_t *r_nv_fogdist_mode;
cvar_t *r_ext_ATI_pntriangles;
cvar_t *r_ati_truform_tess; //
cvar_t *r_ati_truform_normalmode; // linear/quadratic
cvar_t *r_ati_truform_pointmode; // linear/cubic
ATi Tessellation code that never worked c
//----(SA) added
void (APIENTRY *qglPNTrianglesiATI)(GLenum pname, GLint param);
void (APIENTRY *qglPNTrianglesfATI)(GLenum pname, GLfloat param);
/*
The tessellation level and normal generation mode are specified with:
void qglPNTriangles{if}ATI(enum pname, T param)
If <pname> is:
GL_PN_TRIANGLES_NORMAL_MODE_ATI -
<param> must be one of the symbolic constants:
- GL_PN_TRIANGLES_NORMAL_MODE_LINEAR_ATI or
- GL_PN_TRIANGLES_NORMAL_MODE_QUADRATIC_ATI
which will select linear or quadratic normal interpolation respectively.
GL_PN_TRIANGLES_POINT_MODE_ATI -
<param> must be one of the symbolic constants:
- GL_PN_TRIANGLES_POINT_MODE_LINEAR_ATI or
- GL_PN_TRIANGLES_POINT_MODE_CUBIC_ATI
which will select linear or cubic interpolation respectively.
GL_PN_TRIANGLES_TESSELATION_LEVEL_ATI -
<param> should be a value specifying the number of evaluation points on each edge. This value must be
greater than 0 and less than or equal to the value given by GL_MAX_PN_TRIANGLES_TESSELATION_LEVEL_ATI.
An INVALID_VALUE error will be generated if the value for <param> is less than zero or greater than the max value.
Associated 'gets':
Get Value Get Command Type Minimum Value Attribute
--------- ----------- ---- ------------ ---------
PN_TRIANGLES_ATI IsEnabled B False PN Triangles/enable
PN_TRIANGLES_NORMAL_MODE_ATI GetIntegerv Z2 PN_TRIANGLES_NORMAL_MODE_QUADRATIC_ATI PN Triangles
PN_TRIANGLES_POINT_MODE_ATI GetIntegerv Z2 PN_TRIANGLES_POINT_MODE_CUBIC_ATI PN Triangles
PN_TRIANGLES_TESSELATION_LEVEL_ATI GetIntegerv Z+ 1 PN Triangles
MAX_PN_TRIANGLES_TESSELATION_LEVEL_ATI GetIntegerv Z+ 1 -
*/
//----(SA) end
//----(SA) added
r_ext_ATI_pntriangles = ri.Cvar_Get("r_ext_ATI_pntriangles", "0", CVAR_ARCHIVE | CVAR_LATCH | CVAR_UNSAFE); //----(SA) default to '0'
r_ati_truform_tess = ri.Cvar_Get("r_ati_truform_tess", "1", CVAR_ARCHIVE | CVAR_UNSAFE);
r_ati_truform_normalmode = ri.Cvar_Get("r_ati_truform_normalmode", "GL_PN_TRIANGLES_NORMAL_MODE_LINEAR", CVAR_ARCHIVE | CVAR_UNSAFE);
r_ati_truform_pointmode = ri.Cvar_Get("r_ati_truform_pointmode", "GL_PN_TRIANGLES_POINT_MODE_LINEAR", CVAR_ARCHIVE | CVAR_UNSAFE);
r_ati_fsaa_samples = ri.Cvar_Get("r_ati_fsaa_samples", "1", CVAR_ARCHIVE | CVAR_UNSAFE); //DAJ valids are 1, 2, 4
c
Maybe the changelog will help here most, to get a grasp of what was done. The repo itself does not contain any useful information regarding the commit messages. Only a few minor changes with explanatory commit messages so far. The changelog of version 0.3.4 is probably the most worthy to watch, if you are going to do things at the dll/SDK side of the code. Maybe you can get some information out of there. Or simply ask me. It was never finished though, lots of more things were planned, e.g. LUA support, etpro mapscripting support.
