/**
* @sa R_DrawParticles
*/
static void R_SetBlendMode (int mode)
{
switch (mode) {
case BLEND_REPLACE:
R_TexEnv(GL_REPLACE);
break;
case BLEND_ONE:
R_BlendFunc(GL_SRC_ALPHA, GL_ONE);
break;
case BLEND_BLEND:
R_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
case BLEND_ADD:
R_BlendFunc(GL_ONE, GL_ONE);
break;
case BLEND_FILTER:
R_BlendFunc(GL_ZERO, GL_SRC_COLOR);
break;
case BLEND_INVFILTER:
R_BlendFunc(GL_ZERO, GL_ONE_MINUS_SRC_COLOR);
break;
default:
Com_Error(ERR_DROP, "unknown blend mode");
break;
}
}
void
R_SetDefaultState(void)
{
qglClearColor(1, 0, 0.5, 0.5);
qglCullFace(GL_FRONT);
qglEnable(GL_TEXTURE_2D);
qglEnable(GL_ALPHA_TEST);
qglAlphaFunc(GL_GREATER, 0.666);
qglDisable(GL_DEPTH_TEST);
qglDisable(GL_CULL_FACE);
qglDisable(GL_BLEND);
qglColor4f(1, 1, 1, 1);
qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
qglShadeModel(GL_FLAT);
R_TextureMode(gl_texturemode->string);
R_TextureAlphaMode(gl_texturealphamode->string);
R_TextureSolidMode(gl_texturesolidmode->string);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
R_TexEnv(GL_REPLACE);
if (qglPointParameterfEXT)
{
float attenuations[3];
attenuations[0] = gl_particle_att_a->value;
attenuations[1] = gl_particle_att_b->value;
attenuations[2] = gl_particle_att_c->value;
/* GL_POINT_SMOOTH is not implemented by some OpenGL
drivers, especially the crappy Mesa3D backends like
i915.so. That the points are squares and not circles
is not a problem by Quake II! */
qglEnable(GL_POINT_SMOOTH);
qglPointParameterfEXT(GL_POINT_SIZE_MIN_EXT,
gl_particle_min_size->value);
qglPointParameterfEXT(GL_POINT_SIZE_MAX_EXT,
gl_particle_max_size->value);
qglPointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT, attenuations);
}
if (qglColorTableEXT && gl_ext_palettedtexture->value)
{
qglEnable(GL_SHARED_TEXTURE_PALETTE_EXT);
R_SetTexturePalette(d_8to24table);
}
}
/**
* @note No need to reset the blend mode - R_Setup2D will do this
* @sa R_Setup2D
*/
void R_DrawParticles (void)
{
ptl_t *p;
int i;
if (!r_particles->integer)
return;
for (i = 0, p = r_particleArray; i < r_numParticles; i++, p++)
if (p->inuse && !p->invis) {
/* test for visibility */
if (p->levelFlags && !((1 << refdef.worldlevel) & p->levelFlags))
continue;
if (p->program != NULL)
R_UseProgram(p->program);
/* set blend mode and draw gfx */
R_SetBlendMode(p->blend);
switch (p->style) {
case STYLE_LINE:
R_DrawPtlLine(p);
break;
case STYLE_CIRCLE:
R_DrawPtlCircle(p);
break;
default:
break;
}
if (p->pic)
R_DrawSprite(p);
if (p->model)
R_DrawParticleModel(p);
R_TexEnv(GL_MODULATE);
R_UseProgram(NULL);
}
R_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
R_Color(NULL);
}
void
R_DrawAliasModel ( entity_t *e )
{
int i;
dmdl_t *paliashdr;
float an;
vec3_t bbox [ 8 ];
image_t *skin;
if ( !( e->flags & RF_WEAPONMODEL ) )
{
if ( R_CullAliasModel( bbox, e ) )
{
return;
}
}
if ( e->flags & RF_WEAPONMODEL )
{
if ( gl_lefthand->value == 2 )
{
return;
}
}
paliashdr = (dmdl_t *) currentmodel->extradata;
/* get lighting information */
if ( currententity->flags & ( RF_SHELL_HALF_DAM | RF_SHELL_GREEN | RF_SHELL_RED | RF_SHELL_BLUE | RF_SHELL_DOUBLE ) )
{
VectorClear( shadelight );
if ( currententity->flags & RF_SHELL_HALF_DAM )
{
shadelight [ 0 ] = 0.56;
shadelight [ 1 ] = 0.59;
shadelight [ 2 ] = 0.45;
}
if ( currententity->flags & RF_SHELL_DOUBLE )
{
shadelight [ 0 ] = 0.9;
shadelight [ 1 ] = 0.7;
}
if ( currententity->flags & RF_SHELL_RED )
{
shadelight [ 0 ] = 1.0;
}
if ( currententity->flags & RF_SHELL_GREEN )
{
shadelight [ 1 ] = 1.0;
}
if ( currententity->flags & RF_SHELL_BLUE )
{
shadelight [ 2 ] = 1.0;
}
}
else if ( currententity->flags & RF_FULLBRIGHT )
{
for ( i = 0; i < 3; i++ )
{
shadelight [ i ] = 1.0;
}
}
else
{
R_LightPoint( currententity->origin, shadelight );
/* player lighting hack for communication back to server */
if ( currententity->flags & RF_WEAPONMODEL )
{
/* pick the greatest component, which should be the same
as the mono value returned by software */
if ( shadelight [ 0 ] > shadelight [ 1 ] )
{
if ( shadelight [ 0 ] > shadelight [ 2 ] )
{
gl_lightlevel->value = 150 * shadelight [ 0 ];
}
else
{
gl_lightlevel->value = 150 * shadelight [ 2 ];
}
}
else
{
if ( shadelight [ 1 ] > shadelight [ 2 ] )
{
gl_lightlevel->value = 150 * shadelight [ 1 ];
}
else
{
gl_lightlevel->value = 150 * shadelight [ 2 ];
}
}
}
}
if ( currententity->flags & RF_MINLIGHT )
{
for ( i = 0; i < 3; i++ )
{
if ( shadelight [ i ] > 0.1 )
{
break;
}
}
if ( i == 3 )
{
shadelight [ 0 ] = 0.1;
shadelight [ 1 ] = 0.1;
shadelight [ 2 ] = 0.1;
}
}
if ( currententity->flags & RF_GLOW )
{
/* bonus items will pulse with time */
float scale;
float min;
scale = 0.1 * sin( r_newrefdef.time * 7 );
for ( i = 0; i < 3; i++ )
{
min = shadelight [ i ] * 0.8;
shadelight [ i ] += scale;
if ( shadelight [ i ] < min )
{
shadelight [ i ] = min;
}
}
}
/* ir goggles color override */
if ( r_newrefdef.rdflags & RDF_IRGOGGLES && currententity->flags & RF_IR_VISIBLE )
{
shadelight [ 0 ] = 1.0;
shadelight [ 1 ] = 0.0;
shadelight [ 2 ] = 0.0;
}
shadedots =
r_avertexnormal_dots [ ( (int) ( currententity->angles [ 1 ] * ( SHADEDOT_QUANT / 360.0 ) ) ) & ( SHADEDOT_QUANT - 1 ) ];
an = currententity->angles [ 1 ] / 180 * M_PI;
shadevector [ 0 ] = cos( -an );
shadevector [ 1 ] = sin( -an );
shadevector [ 2 ] = 1;
VectorNormalize( shadevector );
/* locate the proper data */
c_alias_polys += paliashdr->num_tris;
/* draw all the triangles */
if ( currententity->flags & RF_DEPTHHACK ) /* hack the depth range to prevent view model from poking into walls */
{
qglDepthRange( gldepthmin, gldepthmin + 0.3 * ( gldepthmax - gldepthmin ) );
}
if ( ( currententity->flags & RF_WEAPONMODEL ) && ( gl_lefthand->value == 1.0F ) )
{
extern void R_MYgluPerspective ( GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar );
qglMatrixMode( GL_PROJECTION );
qglPushMatrix();
qglLoadIdentity();
qglScalef( -1, 1, 1 );
R_MYgluPerspective( r_newrefdef.fov_y, (float) r_newrefdef.width / r_newrefdef.height, 4, 4096 );
qglMatrixMode( GL_MODELVIEW );
qglCullFace( GL_BACK );
}
qglPushMatrix();
e->angles [ PITCH ] = -e->angles [ PITCH ];
R_RotateForEntity( e );
e->angles [ PITCH ] = -e->angles [ PITCH ];
/* select skin */
if ( currententity->skin )
{
skin = currententity->skin; /* custom player skin */
}
else
{
if ( currententity->skinnum >= MAX_MD2SKINS )
{
skin = currentmodel->skins [ 0 ];
}
else
{
skin = currentmodel->skins [ currententity->skinnum ];
if ( !skin )
{
skin = currentmodel->skins [ 0 ];
}
}
}
if ( !skin )
{
skin = r_notexture; /* fallback... */
}
R_Bind( skin->texnum );
/* draw it */
qglShadeModel( GL_SMOOTH );
R_TexEnv( GL_MODULATE );
if ( currententity->flags & RF_TRANSLUCENT )
{
qglEnable( GL_BLEND );
}
if ( ( currententity->frame >= paliashdr->num_frames ) ||
( currententity->frame < 0 ) )
{
ri.Con_Printf( PRINT_ALL, "R_DrawAliasModel %s: no such frame %d\n",
currentmodel->name, currententity->frame );
currententity->frame = 0;
currententity->oldframe = 0;
}
if ( ( currententity->oldframe >= paliashdr->num_frames ) ||
( currententity->oldframe < 0 ) )
{
ri.Con_Printf( PRINT_ALL, "R_DrawAliasModel %s: no such oldframe %d\n",
currentmodel->name, currententity->oldframe );
currententity->frame = 0;
currententity->oldframe = 0;
}
if ( !gl_lerpmodels->value )
{
currententity->backlerp = 0;
}
R_DrawAliasFrameLerp( paliashdr, currententity->backlerp );
R_TexEnv( GL_REPLACE );
qglShadeModel( GL_FLAT );
qglPopMatrix();
if ( ( currententity->flags & RF_WEAPONMODEL ) && ( gl_lefthand->value == 1.0F ) )
{
qglMatrixMode( GL_PROJECTION );
qglPopMatrix();
qglMatrixMode( GL_MODELVIEW );
qglCullFace( GL_FRONT );
}
if ( currententity->flags & RF_TRANSLUCENT )
{
qglDisable( GL_BLEND );
}
if ( currententity->flags & RF_DEPTHHACK )
{
qglDepthRange( gldepthmin, gldepthmax );
}
if ( gl_shadows->value &&
!( currententity->flags & ( RF_TRANSLUCENT | RF_WEAPONMODEL | RF_NOSHADOW ) ) )
{
qglPushMatrix();
/* don't rotate shadows on ungodly axes */
qglTranslatef( e->origin [ 0 ], e->origin [ 1 ], e->origin [ 2 ] );
qglRotatef( e->angles [ 1 ], 0, 0, 1 );
qglDisable( GL_TEXTURE_2D );
qglEnable( GL_BLEND );
qglColor4f( 0, 0, 0, 0.5f );
R_DrawAliasShadow( paliashdr, currententity->frame );
qglEnable( GL_TEXTURE_2D );
qglDisable( GL_BLEND );
qglPopMatrix();
}
qglColor4f( 1, 1, 1, 1 );
}