public static void ExportTerrainTexture()
{
TerrainData terrainData = Selection.activeObject as TerrainData;
if (terrainData == null)
{
EditorUtility.DisplayDialog("Select Terrain", "You Must Select a Terrain first!", "Ok");
return;
}
EditorUtility.DisplayDialog("Select Terrain", "You select the Terrain of " + terrainData.name, "Ok");
var path = EditorUtility.SaveFilePanel("Save Resource", "", terrainData.name, "png");
if (path.Length == 0)
{
return;
}
//Get Ratio
withRatio = terrainData.size.x / terrainData.alphamapWidth;
heightRatio = terrainData.size.z / terrainData.alphamapHeight;
// //get Terrain size
// terrainWith = terrainData.size.x;
// terrainHeight = terrainData.size.z;
//
// //Get AlphaMap size
// alphaMapWith = terrainData.alphamapWidth;
// alphaMapHeight = terrainData.alphamapHeight;
// return;
//Create return texture
Texture2D texture = new Texture2D(terrainData.alphamapWidth, terrainData.alphamapHeight, TextureFormat.RGBA32, false);
//blend map
float [,,] splatmapData = terrainData.GetAlphamaps(0, 0, terrainData.alphamapWidth, terrainData.alphamapHeight);
// Color[] colorList = new Color[ splatmapData.GetUpperBound(2) ];//newList<Color>( splatmapData.GetUpperBound(2) );
for (int i = splatmapData.GetLowerBound(0); i <= splatmapData.GetUpperBound(0); i++)
{
for (int j = splatmapData.GetLowerBound(1); j <= splatmapData.GetUpperBound(1); j++)
{
int channel = splatmapData.GetUpperBound(2);
Color blendColor = Color.white;
if (channel == 2)
{
blendColor = new Color(splatmapData[j, i, 0], splatmapData[j, i, 1], splatmapData[j, i, 2], 1);
}
else if (channel == 3)
{
blendColor = new Color(splatmapData[j, i, 0], splatmapData[j, i, 1], splatmapData[j, i, 2], splatmapData[j, i, 3]);
}
//for ( int k = splatmapData.GetLowerBound(2); k <= splatmapData.GetUpperBound(2); k++ )
//{
// Color color = GetSplatColor( terrainData.splatPrototypes[k], i , j );
// blendColor += splatmapData[i, j, k];
//}
texture.SetPixel(i, j, blendColor);
}
}
// float [,,] splatmapData = terrainData.GetAlphamaps( 0, 0, terrainData.alphamapWidth, terrainData.alphamapHeight );
// Texture2D texture = new Texture2D( terrainData.alphamapWidth, terrainData.alphamapHeight,TextureFormat.RGB24, false );
byte[] bytes = texture.EncodeToPNG();
File.WriteAllBytes(path, bytes);
}
