/// <summary>
/// R_RenderBrushPoly
/// </summary>
private void RenderBrushPoly(MemorySurface fa)
{
_BrushPolys++;
if ((fa.flags & ( Int32 )Q1SurfaceFlags.Sky) != 0)
{ // warp texture, no lightmaps
WarpableTextures.EmitBothSkyLayers(Host.RealTime, Host.RenderContext.Origin, fa);
return;
}
var t = TextureAnimation(fa.texinfo.texture);
t.texture.Bind( );
if ((fa.flags & ( Int32 )Q1SurfaceFlags.Turbulence) != 0)
{ // warp texture, no lightmaps
WarpableTextures.EmitWaterPolys(Host.RealTime, fa);
return;
}
if ((fa.flags & ( Int32 )Q1SurfaceFlags.Underwater) != 0)
{
Host.Video.Device.Graphics.DrawWaterPoly(fa.polys, Host.RealTime);
}
else
{
Host.Video.Device.Graphics.DrawPoly(fa.polys, t.scaleX, t.scaleY);
}
// add the poly to the proper lightmap chain
fa.polys.chain = _LightMapPolys[fa.lightmaptexturenum];
_LightMapPolys[fa.lightmaptexturenum] = fa.polys;
// check for lightmap modification
var modified = false;
for (var maps = 0; maps < BspDef.MAXLIGHTMAPS && fa.styles[maps] != 255; maps++)
{
if (_LightStyleValue[fa.styles[maps]] != fa.cached_light[maps])
{
modified = true;
break;
}
}
if (modified ||
fa.dlightframe == _FrameCount || // dynamic this frame
fa.cached_dlight) // dynamic previously
{
if (Host.Cvars.Dynamic.Get <Boolean>( ))
{
LightMapTexture.LightMapModified[fa.lightmaptexturenum] = true;
UpdateRect(fa, ref LightMapTexture.LightMapRectChange[fa.lightmaptexturenum]);
var offset = fa.lightmaptexturenum * _LightMapBytes * RenderDef.BLOCK_WIDTH * RenderDef.BLOCK_HEIGHT;
offset += fa.light_t * RenderDef.BLOCK_WIDTH * _LightMapBytes + fa.light_s * _LightMapBytes;
BuildLightMap(fa, new ByteArraySegment(_LightMaps, offset), RenderDef.BLOCK_WIDTH * _LightMapBytes);
}
}
}
/// <summary>
/// R_DrawSequentialPoly
/// Systems that have fast state and texture changes can
/// just do everything as it passes with no need to sort
/// </summary>
private void DrawSequentialPoly(MemorySurface s)
{
//
// normal lightmaped poly
//
if ((s.flags & (( Int32 )Q1SurfaceFlags.Sky | ( Int32 )Q1SurfaceFlags.Turbulence | ( Int32 )Q1SurfaceFlags.Underwater)) == 0)
{
RenderDynamicLightmaps(s);
var p = s.polys;
var t = TextureAnimation(s.texinfo.texture);
if (Host.Video.Device.Desc.SupportsMultiTexture)
{
Host.Video.Device.Graphics.DrawSequentialPolyMultiTexture(t.texture, LightMapTexture, _LightMaps, p, s.lightmaptexturenum);
return;
}
else
{
Host.Video.Device.Graphics.DrawSequentialPoly(t.texture, LightMapTexture, p, s.lightmaptexturenum);
}
return;
}
//
// subdivided water surface warp
//
if ((s.flags & ( Int32 )Q1SurfaceFlags.Turbulence) != 0)
{
Host.Video.Device.DisableMultitexture( );
s.texinfo.texture.texture.Bind( );
WarpableTextures.EmitWaterPolys(Host.RealTime, s);
return;
}
//
// subdivided sky warp
//
if ((s.flags & ( Int32 )Q1SurfaceFlags.Sky) != 0)
{
WarpableTextures.EmitBothSkyLayers(Host.RealTime, Host.RenderContext.Origin, s);
return;
}
//
// underwater warped with lightmap
//
RenderDynamicLightmaps(s);
if (Host.Video.Device.Desc.SupportsMultiTexture)
{
var t = TextureAnimation(s.texinfo.texture);
Host.DrawingContext.SelectTexture(MTexTarget.TEXTURE0_SGIS);
Host.Video.Device.Graphics.DrawWaterPolyMultiTexture(_LightMaps, t.texture, LightMapTexture, s.lightmaptexturenum, s.polys, Host.RealTime);
}
else
{
var p = s.polys;
var t = TextureAnimation(s.texinfo.texture);
t.texture.Bind( );
Host.Video.Device.Graphics.DrawWaterPoly(p, Host.RealTime);
LightMapTexture.BindLightmap((( GLTextureDesc )LightMapTexture.Desc).TextureNumber + s.lightmaptexturenum);
Host.Video.Device.Graphics.DrawWaterPolyLightmap(p, Host.RealTime, true);
}
}
/// <summary>
/// R_DrawWaterSurfaces
/// </summary>
private void DrawWaterSurfaces( )
{
if (Host.Cvars.WaterAlpha.Get <Single>( ) == 1.0f && Host.Cvars.glTexSort.Get <Boolean>( ))
{
return;
}
//
// go back to the world matrix
//
Host.Video.Device.ResetMatrix( );
// WaterAlpha is broken - will fix when we introduce GLSL...
//if ( _WaterAlpha.Value < 1.0 )
//{
// GL.Enable( EnableCap.Blend );
// GL.Color4( 1, 1, 1, _WaterAlpha.Value );
// GL.TexEnv( TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, ( Int32 ) TextureEnvMode.Modulate );
//}
if (!Host.Cvars.glTexSort.Get <Boolean>( ))
{
if (TextureChains.WaterChain == null)
{
return;
}
for (var s = TextureChains.WaterChain; s != null; s = s.texturechain)
{
s.texinfo.texture.texture.Bind( );
WarpableTextures.EmitWaterPolys(Host.RealTime, s);
}
TextureChains.WaterChain = null;
}
else
{
for (var i = 0; i < Host.Client.cl.worldmodel.NumTextures; i++)
{
var t = Host.Client.cl.worldmodel.Textures[i];
if (t == null)
{
continue;
}
var s = t.texturechain;
if (s == null)
{
continue;
}
if ((s.flags & ( Int32 )Q1SurfaceFlags.Turbulence) == 0)
{
continue;
}
// set modulate mode explicitly
t.texture.Bind( );
for ( ; s != null; s = s.texturechain)
{
WarpableTextures.EmitWaterPolys(Host.RealTime, s);
}
t.texturechain = null;
}
}
// WaterAlpha is broken - will fix when we introduce GLSL...
//if( _WaterAlpha.Value < 1.0 )
//{
// GL.TexEnv( TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, ( Int32 ) TextureEnvMode.Replace );
// GL.Color4( 1f, 1, 1, 1 );
// GL.Disable( EnableCap.Blend );
//}
}