/*
==============
GL_DisableAllTexGens
==============
*/
void GL_DisableAllTexGens( void )
{
GL_TexGen( GL_S, 0 );
GL_TexGen( GL_T, 0 );
GL_TexGen( GL_R, 0 );
GL_TexGen( GL_Q, 0 );
}
/*
================
R_BeginDrawMirror
Setup texture matrix for mirror texture
================
*/
void R_BeginDrawMirror( msurface_t *fa )
{
matrix4x4 m1, m2, matrix;
GLfloat genVector[4][4];
mextrasurf_t *es;
int i;
es = SURF_INFO( fa, RI.currentmodel );
Matrix4x4_Copy( matrix, es->mirrormatrix );
Matrix4x4_LoadIdentity( m1 );
Matrix4x4_ConcatScale( m1, 0.5f );
Matrix4x4_Concat( m2, m1, matrix );
Matrix4x4_LoadIdentity( m1 );
Matrix4x4_ConcatTranslate( m1, 0.5f, 0.5f, 0.5f );
Matrix4x4_Concat( matrix, m1, m2 );
for( i = 0; i < 4; i++ )
{
genVector[0][i] = i == 0 ? 1 : 0;
genVector[1][i] = i == 1 ? 1 : 0;
genVector[2][i] = i == 2 ? 1 : 0;
genVector[3][i] = i == 3 ? 1 : 0;
}
GL_TexGen( GL_S, GL_OBJECT_LINEAR );
GL_TexGen( GL_T, GL_OBJECT_LINEAR );
GL_TexGen( GL_R, GL_OBJECT_LINEAR );
GL_TexGen( GL_Q, GL_OBJECT_LINEAR );
pglTexGenfv( GL_S, GL_OBJECT_PLANE, genVector[0] );
pglTexGenfv( GL_T, GL_OBJECT_PLANE, genVector[1] );
pglTexGenfv( GL_R, GL_OBJECT_PLANE, genVector[2] );
pglTexGenfv( GL_Q, GL_OBJECT_PLANE, genVector[3] );
GL_LoadTexMatrix( matrix );
}