Texture2D JoinTextures(RHOTextureTable table, RHOTextureJoin join, TextureImporterFormat format)
{
var t = new Texture2D(table.roughness[0].width, table.roughness[0].height, TextureFormat.ARGB32, true);
var pixels = t.GetPixels32();
var r = table.roughness[join.roughnessIndex];
var h = table.height[join.heightIndex];
var ao = table.height[join.aoIndex];
var rPixels = r.GetPixels32();
var hPixels = h.GetPixels32();
var aoPixels = ao.GetPixels32();
var numPixels = pixels.Length;
for (int i = 0; i < numPixels; ++i)
{
var p = new Color32(rPixels[i].a, aoPixels[i].a, 0, hPixels[i].a);
pixels[i] = p;
}
t.SetPixels32(pixels);
t.Apply();
if ((format == TextureImporterFormat.DXT1) || (format == TextureImporterFormat.DXT5))
{
EditorUtility.CompressTexture(t, (TextureFormat)format, TextureCompressionQuality.Best);
t.Apply();
}
return(t);
}
void AddTextureSet(WorldAtlasMaterial atlasMaterial, RHOTextureTable table, RHOTextureSet textureSet)
{
CheckThrowTextureSet(atlasMaterial, textureSet.roughness, "Roughness");
CheckThrowTextureSet(atlasMaterial, textureSet.ao, "AO");
CheckThrowTextureSet(atlasMaterial, textureSet.height, "Height");
var tSet = new TextureSet()
{
top = table.AddTextureJoin(textureSet.roughness.top, textureSet.height.top, textureSet.ao.top),
sides = table.AddTextureJoin(textureSet.roughness.sides, textureSet.height.sides, textureSet.ao.sides),
bottom = table.AddTextureJoin(textureSet.roughness.bottom, textureSet.height.bottom, textureSet.ao.bottom)
};
table.indices.Add(tSet);
}
RHOTextureTable LoadRHOTextureTable(WorldAtlas atlas)
{
var table = new RHOTextureTable();
for (int i = 0; i < atlas.materials.Length; ++i)
{
var m = atlas.materials[i];
if (m == null)
{
ThrowAssetException(atlas, "Material for terrain type '" + ((EVoxelBlockType)(i + 1)).ToString() + "' is not set!");
}
if (m.textures != null)
{
var set = new RHOTextureSet()
{
roughness = m.textures.roughness,
height = m.textures.height,
ao = m.textures.ao
};
AddTextureSet(m, table, set);
}
else
{
ThrowAssetException(m, "Missing textures for atlas material.");
}
}
int w = -1;
int h = -1;
int mm = -1;
var settings = new ImportSettings_t()
{
alphaSource = TextureImporterAlphaSource.FromGrayScale,
alphaIsTransparency = false,
aniso = 16,
filterMode = FilterMode.Trilinear,
mipmap = false,
readable = true,
type = TextureImporterType.Default,
format = TextureImporterFormat.Alpha8
};
foreach (var t in table.roughness)
{
CheckTextureSizeAndFormatAndThrow(ref w, ref h, ref mm, settings, t, "Roughness");
}
foreach (var t in table.height)
{
CheckTextureSizeAndFormatAndThrow(ref w, ref h, ref mm, settings, t, "Height");
}
foreach (var t in table.ao)
{
CheckTextureSizeAndFormatAndThrow(ref w, ref h, ref mm, settings, t, "AO");
}
return(table);
}
