/*
==============
Tess_InstantQuad
==============
*/
void Tess_InstantQuad( vec4_t quadVerts[ 4 ] )
{
GLimp_LogComment( "--- Tess_InstantQuad ---\n" );
tess.multiDrawPrimitives = 0;
tess.numVertexes = 0;
tess.numIndexes = 0;
tess.attribsSet = 0;
Tess_MapVBOs( false );
VectorCopy( quadVerts[ 0 ], tess.verts[ tess.numVertexes ].xyz );
Vector4Set( tess.verts[ tess.numVertexes ].color, 255, 255, 255, 255 );
tess.verts[ tess.numVertexes ].texCoords[ 0 ] = floatToHalf( 0.0f );
tess.verts[ tess.numVertexes ].texCoords[ 1 ] = floatToHalf( 0.0f );
tess.numVertexes++;
VectorCopy( quadVerts[ 1 ], tess.verts[ tess.numVertexes ].xyz );
Vector4Set( tess.verts[ tess.numVertexes ].color, 255, 255, 255, 255 );
tess.verts[ tess.numVertexes ].texCoords[ 0 ] = floatToHalf( 1.0f );
tess.verts[ tess.numVertexes ].texCoords[ 1 ] = floatToHalf( 0.0f );
tess.numVertexes++;
VectorCopy( quadVerts[ 2 ], tess.verts[ tess.numVertexes ].xyz );
Vector4Set( tess.verts[ tess.numVertexes ].color, 255, 255, 255, 255 );
tess.verts[ tess.numVertexes ].texCoords[ 0 ] = floatToHalf( 1.0f );
tess.verts[ tess.numVertexes ].texCoords[ 1 ] = floatToHalf( 1.0f );
tess.numVertexes++;
VectorCopy( quadVerts[ 3 ], tess.verts[ tess.numVertexes ].xyz );
Vector4Set( tess.verts[ tess.numVertexes ].color, 255, 255, 255, 255 );
tess.verts[ tess.numVertexes ].texCoords[ 0 ] = floatToHalf( 0.0f );
tess.verts[ tess.numVertexes ].texCoords[ 1 ] = floatToHalf( 1.0f );
tess.numVertexes++;
tess.indexes[ tess.numIndexes++ ] = 0;
tess.indexes[ tess.numIndexes++ ] = 1;
tess.indexes[ tess.numIndexes++ ] = 2;
tess.indexes[ tess.numIndexes++ ] = 0;
tess.indexes[ tess.numIndexes++ ] = 2;
tess.indexes[ tess.numIndexes++ ] = 3;
Tess_UpdateVBOs( );
GL_VertexAttribsState( ATTR_POSITION | ATTR_TEXCOORD | ATTR_COLOR );
Tess_DrawElements();
tess.multiDrawPrimitives = 0;
tess.numVertexes = 0;
tess.numIndexes = 0;
tess.attribsSet = 0;
GL_CheckErrors();
}
static void DrawSkyBox()
{
int i;
sky_min = 0;
sky_max = 1;
Com_Memset( s_skyTexCoords, 0, sizeof( s_skyTexCoords ) );
// set up for drawing
tess.multiDrawPrimitives = 0;
tess.numIndexes = 0;
tess.numVertexes = 0;
tess.attribsSet = 0;
GL_State( GLS_DEFAULT );
Tess_MapVBOs( false );
for ( i = 0; i < 6; i++ )
{
int sky_mins_subd[ 2 ], sky_maxs_subd[ 2 ];
int s, t;
sky_mins[ 0 ][ i ] = floor( sky_mins[ 0 ][ i ] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
sky_mins[ 1 ][ i ] = floor( sky_mins[ 1 ][ i ] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
sky_maxs[ 0 ][ i ] = ceil( sky_maxs[ 0 ][ i ] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
sky_maxs[ 1 ][ i ] = ceil( sky_maxs[ 1 ][ i ] * HALF_SKY_SUBDIVISIONS ) / HALF_SKY_SUBDIVISIONS;
if ( ( sky_mins[ 0 ][ i ] >= sky_maxs[ 0 ][ i ] ) || ( sky_mins[ 1 ][ i ] >= sky_maxs[ 1 ][ i ] ) )
{
continue;
}
sky_mins_subd[ 0 ] = sky_mins[ 0 ][ i ] * HALF_SKY_SUBDIVISIONS;
sky_mins_subd[ 1 ] = sky_mins[ 1 ][ i ] * HALF_SKY_SUBDIVISIONS;
sky_maxs_subd[ 0 ] = sky_maxs[ 0 ][ i ] * HALF_SKY_SUBDIVISIONS;
sky_maxs_subd[ 1 ] = sky_maxs[ 1 ][ i ] * HALF_SKY_SUBDIVISIONS;
if ( sky_mins_subd[ 0 ] < -HALF_SKY_SUBDIVISIONS )
{
sky_mins_subd[ 0 ] = -HALF_SKY_SUBDIVISIONS;
}
else if ( sky_mins_subd[ 0 ] > HALF_SKY_SUBDIVISIONS )
{
sky_mins_subd[ 0 ] = HALF_SKY_SUBDIVISIONS;
}
if ( sky_mins_subd[ 1 ] < -HALF_SKY_SUBDIVISIONS )
{
sky_mins_subd[ 1 ] = -HALF_SKY_SUBDIVISIONS;
}
else if ( sky_mins_subd[ 1 ] > HALF_SKY_SUBDIVISIONS )
{
sky_mins_subd[ 1 ] = HALF_SKY_SUBDIVISIONS;
}
if ( sky_maxs_subd[ 0 ] < -HALF_SKY_SUBDIVISIONS )
{
sky_maxs_subd[ 0 ] = -HALF_SKY_SUBDIVISIONS;
}
else if ( sky_maxs_subd[ 0 ] > HALF_SKY_SUBDIVISIONS )
{
sky_maxs_subd[ 0 ] = HALF_SKY_SUBDIVISIONS;
}
if ( sky_maxs_subd[ 1 ] < -HALF_SKY_SUBDIVISIONS )
{
sky_maxs_subd[ 1 ] = -HALF_SKY_SUBDIVISIONS;
}
else if ( sky_maxs_subd[ 1 ] > HALF_SKY_SUBDIVISIONS )
{
sky_maxs_subd[ 1 ] = HALF_SKY_SUBDIVISIONS;
}
// iterate through the subdivisions
for ( t = sky_mins_subd[ 1 ] + HALF_SKY_SUBDIVISIONS; t <= sky_maxs_subd[ 1 ] + HALF_SKY_SUBDIVISIONS; t++ )
{
for ( s = sky_mins_subd[ 0 ] + HALF_SKY_SUBDIVISIONS; s <= sky_maxs_subd[ 0 ] + HALF_SKY_SUBDIVISIONS; s++ )
{
MakeSkyVec( ( s - HALF_SKY_SUBDIVISIONS ) / ( float ) HALF_SKY_SUBDIVISIONS,
( t - HALF_SKY_SUBDIVISIONS ) / ( float ) HALF_SKY_SUBDIVISIONS,
i, s_skyTexCoords[ t ][ s ], s_skyPoints[ t ][ s ] );
}
}
// only add indexes for first stage
FillCloudySkySide( sky_mins_subd, sky_maxs_subd, true );
}
Tess_UpdateVBOs( );
GL_VertexAttribsState( tess.attribsSet );
Tess_DrawElements();
}
