// END OF TERRAIN BLENDING IN THE GAME Universe
// ******************************************
/*
* make the terrain look more natural
* e.g. by applying blending of the textures where needed
*/
public void MakeTerrainLookReal()
{
// go through the quads
for (int z = 0; z < Universe.chunkSize; z++)
{
for (int x = 0; x < Universe.chunkSize; x++)
{
// Blend the tectures where needed
TextureBlending.GradientBlend(chunkData, x, z);
}
}
}
private WidgetMaterial(Blending blending, ShaderId shader, int numTextures, TextureBlending textureBlending, bool premulAlpha)
{
PremulAlpha = premulAlpha || blending == Blending.Burn || blending == Blending.Darken;
var options = PremulAlpha ? ShaderOptions.PremultiplyAlpha : ShaderOptions.None;
if (textureBlending == TextureBlending.CutOut)
{
options |= ShaderOptions.CutOutTextureBlending;
}
ShaderProgram = ShaderPrograms.Instance.GetShaderProgram(shader, numTextures, options);
Blending = blending;
PassCount = Blending == Blending.Glow || Blending == Blending.Darken ? 2 : 1;
}
private static int GetInstanceKey(Blending blending, ShaderId shader, int numTextures, TextureBlending textureBlending, bool premulAlpha)
{
var premulAlphaFlag = premulAlpha ? 1 : 0;
return((int)blending | ((int)shader << 8) | (numTextures << 16) | (premulAlphaFlag << 24) | ((int)textureBlending << 25));
}
public static WidgetMaterial GetInstance(Blending blending, ShaderId shader, int numTextures, TextureBlending textureBlending = TextureBlending.Multiply, bool premulAlpha = false)
{
lock (instanceCache) {
var instanceKey = GetInstanceKey(blending, shader, numTextures, textureBlending, premulAlpha);
WidgetMaterial instance;
if (!instanceCache.TryGetValue(instanceKey, out instance))
{
instance = new WidgetMaterial(blending, shader, numTextures, textureBlending, premulAlpha);
instanceCache.Add(instanceKey, instance);
}
return(instance);
}
}
