public static void UpdateSourceCache(TerrainCombinerSource source)
{
Terrain targetTerrain = source.GetComponent <Terrain>();
TerrainData targetTerrainData = targetTerrain.terrainData;
// TODO: reuse/scale textures ?
// TODO: release?
int size = targetTerrainData.heightmapResolution;
source.CachedHeightmapTexture = TCGraphicsHelper.CreateTexture(size);
TCGraphicsHelper.LoadTextureData(targetTerrainData.GetHeights(0, 0, size, size), ref source.CachedHeightmapTexture);
}
public override void OnInspectorGUI()
{
TerrainCombinerSource source = (TerrainCombinerSource)target;
Terrain terrain = source.GetComponent <Terrain>();
source.GroundLevelFraction = EditorGUILayout.FloatField("HeightDataGround", source.GroundLevelFraction);
source.alphaMaterial = (Texture2D)EditorGUILayout.ObjectField("AlphaMaterial", source.alphaMaterial, typeof(Texture2D), false); // TODO find better name to alphamaterial
if (GUILayout.Button("Calculate ground level"))
{
source.GroundLevelFraction = FindGroundLevel(terrain.terrainData);
}
source.CacheDirty = true;
}
public static void UpdateSourceCache(TerrainCombinerSource source)
{
TerrainData sourceTerrainData = source.GetComponent <Terrain>().terrainData;
// TODO: reuse/scale textures ?
// TODO: release?
source.CachedMaterialTextures.Clear();
int size = sourceTerrainData.alphamapResolution;
float[,,] alphaMaps = sourceTerrainData.GetAlphamaps(0, 0, size, size);
for (int layer = 0; layer < sourceTerrainData.alphamapLayers; layer++)
{
Texture2D texture = TCGraphicsHelper.CreateTexture(size);
TCGraphicsHelper.LoadTextureData(alphaMaps, layer, ref texture);
source.CachedMaterialTextures.Add(texture);
}
}
private static void UpdateCaches(TerrainCombiner terrainCombiner)
{
// Update source caches
for (int i = 0; i < terrainCombiner.Instances.Length; i++)
{
TerrainCombinerSource source = terrainCombiner.Instances[i].source;
if (source != null && source.CacheDirty)
{
TCHeightmapHelper.UpdateSourceCache(source);
TCMaterialHelper.UpdateSourceCache(source);
source.CacheDirty = false;
}
}
// Update target caches
if (terrainCombiner.CacheDirty)
{
TCHeightmapHelper.UpdateCombinerCache(terrainCombiner);
TCMaterialHelper.UpdateCombinerCache(terrainCombiner);
terrainCombiner.CacheDirty = false;
}
}