/// <summary>
/// Executes the modifiers in order and generates the necessary splatmaps
/// </summary>
/// <param name="layer"></param>
/// <param name="modifiers"></param>
/// <param name="output"></param>
public static void ProcessSingleLayer(Terrain terrain, LayerSettings settings)
{
//Disable or with no settings (result in a fill with black)
if (settings.enabled == false)
{
return;
}
Graphics.SetRenderTarget(alphaMap);
//Start with a full white base
Graphics.Blit(Texture2D.whiteTexture, alphaMap);
//Reverse order
for (int i = settings.modifierStack.Count - 1; i >= 0; i--)
{
settings.modifierStack[i].Configure(filterMat);
settings.modifierStack[i].Execute(alphaMap);
}
//Scale splatmap to fit in terrain
Vector2 scaledSplatmapSize = new Vector2((terrain.terrainData.size.x / m_resolution) * m_resolution, (terrain.terrainData.size.z / m_resolution) * m_resolution);
//PaintContext handles creation of splatmaps. Subtracting the weights of a splatmap, from the ones before it.
//A single pixels of all combined alpha maps must not exceed a value of one. The 2nd pass of Hidden/TerrainEngine/TerrainLayerUtils is used internally to do this
//Note: Paintcontext must use a serialized terrain reference, otherwise breaks when executing "ApplyDelayedActions" when the project is saved!
PaintContext c = TerrainPaintUtility.BeginPaintTexture(terrain, new Rect(0, 0, scaledSplatmapSize.x, scaledSplatmapSize.y), settings.layer);
Graphics.Blit(alphaMap, c.destinationRenderTexture);
TerrainPaintUtility.EndPaintTexture(c, UndoActionName);
}
public void CreateSettingsForLayer(TerrainLayer layer)
{
if (layer == null)
{
return;
}
LayerSettings s = new LayerSettings();
s.layer = layer;
s.modifierStack = new List <Modifier>();
layerSettings.Insert(0, s);
SetTerrainLayers();
}