static void DrawSkyBox( const shader_t* shader )
{
// Com_Memset( s_skyTexCoords, 0, sizeof( s_skyTexCoords ) );
for (int i = 0; i < 6; ++i)
{
int sky_mins_subd[2], sky_maxs_subd[2];
if ( ( sky_mins_st[i][0] >= sky_maxs_st[i][0] ) || ( sky_mins_st[i][1] >= sky_maxs_st[i][1] ) ) {
continue;
}
sky_mins_subd[0] = HALF_SKY_SUBDIVISIONS * Com_Clamp( -1, 1, sky_mins_st[i][0] );
sky_mins_subd[1] = HALF_SKY_SUBDIVISIONS * Com_Clamp( -1, 1, sky_mins_st[i][1] );
sky_maxs_subd[0] = HALF_SKY_SUBDIVISIONS * Com_Clamp( -1, 1, sky_maxs_st[i][0] );
sky_maxs_subd[1] = HALF_SKY_SUBDIVISIONS * Com_Clamp( -1, 1, sky_maxs_st[i][1] );
//
// iterate through the subdivisions
//
for (int t = sky_mins_subd[1]+HALF_SKY_SUBDIVISIONS; t <= sky_maxs_subd[1]+HALF_SKY_SUBDIVISIONS; ++t)
{
for (int 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] );
}
}
DrawSkySide( shader->sky.outerbox[i], sky_mins_subd, sky_maxs_subd );
}
}
static void DrawSkyBox( shader_t *shader )
{
int i;
sky_min = GFIXED_0;
sky_max = GFIXED_1;
Com_Memset( s_skyTexCoords, 0, sizeof( s_skyTexCoords ) );
for (i=0 ; i<6 ; i++)
{
int sky_mins_subd[2], sky_maxs_subd[2];
int s, t;
sky_mins[0][i] = FIXED_FLOOR( sky_mins[0][i] * GFIXED(HALF_SKY_SUBDIVISIONS ,0)) / GFIXED(HALF_SKY_SUBDIVISIONS,0);
sky_mins[1][i] = FIXED_FLOOR( sky_mins[1][i] * GFIXED(HALF_SKY_SUBDIVISIONS ,0)) / GFIXED(HALF_SKY_SUBDIVISIONS,0);
sky_maxs[0][i] = FIXED_CEIL( sky_maxs[0][i] * GFIXED(HALF_SKY_SUBDIVISIONS ,0)) / GFIXED(HALF_SKY_SUBDIVISIONS,0);
sky_maxs[1][i] = FIXED_CEIL( sky_maxs[1][i] * GFIXED(HALF_SKY_SUBDIVISIONS ,0)) / GFIXED(HALF_SKY_SUBDIVISIONS,0);
if ( ( sky_mins[0][i] >= sky_maxs[0][i] ) ||
( sky_mins[1][i] >= sky_maxs[1][i] ) )
{
continue;
}
sky_mins_subd[0] = FIXED_INT32SCALE(HALF_SKY_SUBDIVISIONS, sky_mins[0][i]);
sky_mins_subd[1] = FIXED_INT32SCALE(HALF_SKY_SUBDIVISIONS, sky_mins[1][i]);
sky_maxs_subd[0] = FIXED_INT32SCALE(HALF_SKY_SUBDIVISIONS, sky_maxs[0][i]);
sky_maxs_subd[1] = FIXED_INT32SCALE(HALF_SKY_SUBDIVISIONS, sky_maxs[1][i]);
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( FIXED_INT32RATIO_G( s - HALF_SKY_SUBDIVISIONS,HALF_SKY_SUBDIVISIONS),
FIXED_INT32RATIO_G( t - HALF_SKY_SUBDIVISIONS,HALF_SKY_SUBDIVISIONS),
i,
s_skyTexCoords[t][s],
s_skyPoints[t][s] );
}
}
DrawSkySide( shader->sky.outerbox[sky_texorder[i]],
sky_mins_subd,
sky_maxs_subd );
}
}
static void DrawSkyBox( shader_t *shader )
{
int i;
sky_min = 0.0f;
sky_max = 1.0f;
memset( s_skyTexCoords, 0, sizeof( s_skyTexCoords ) );
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] );
}
}
DrawSkySide( shader->sky->outerbox[i],
sky_mins_subd,
sky_maxs_subd );
}
}
static void DrawSkyBox( shader_t *shader, const float* eye_origin, const float* colorTint )
{
int i;
int vertexCount = 0;
skyboxDrawInfo_t skybox;
memset( &skybox, 0, sizeof( skybox ) );
sky_min = 0;
sky_max = 1;
Com_Memset( s_skyTexCoords, 0, sizeof( s_skyTexCoords ) );
for (i=0 ; i<6 ; i++)
{
int sky_mins_subd[2], sky_maxs_subd[2];
int s, t;
skyboxSideDrawInfo_t* skyboxSide = &skybox.sides[i];
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] );
}
}
skyboxSide->image = shader->sky.outerbox[sky_texorder[i]];
vertexCount = DrawSkySide(
skyboxSide,
vertexCount,
sky_mins_subd,
sky_maxs_subd );
}
skybox.vbuffer = s_skyVBuffer;
skybox.tbuffer = s_skyTBuffer;
GFX_DrawSkyBox( &skybox, eye_origin, colorTint );
}
