/// <summary> /// Create the mask and put it in the root assets directory /// </summary> public void CreateMask() { // Check to see if we have an active terrain if (Terrain.activeTerrain == null) { Debug.LogError("You need an active terrain!"); return; } // Get the terrain UnityHeightMap hm = new UnityHeightMap(Terrain.activeTerrain); // Create a heightmap for the mask HeightMap maskHm = new HeightMap(hm.Width(), hm.Depth()); //Iterate though our terrain, at the resolution of the heightmap and pick up the height float testHeight; float nrmSeaLevel = m_seaLevel / Terrain.activeTerrain.terrainData.size.y; for (int x = 0; x < hm.Width(); x++) { for (int z = 0; z < hm.Depth(); z++) { testHeight = hm[x, z]; if (testHeight < nrmSeaLevel) { continue; } else if (Gaia.GaiaUtils.Math_ApproximatelyEqual(testHeight, nrmSeaLevel)) { //We have a shoreline, lets mask it maskHm[x, z] = m_aboveWaterStrength; MakeMask(x, z, nrmSeaLevel, m_maskSize, hm, maskHm); } else { maskHm[x, z] = m_aboveWaterStrength; } } } maskHm.Flip(); //maskHm.Smooth(1); string path = "Assets/GaiaMasks/"; if (!Directory.Exists(path)) { Directory.CreateDirectory(path); } path = Path.Combine(path, GaiaCommon1.Utils.FixFileName(string.Format("TerrainShoreLineMask-{0:yyyyMMdd-HHmmss}", DateTime.Now))); Gaia.GaiaUtils.CompressToSingleChannelFileImage(maskHm.Heights(), path, TextureFormat.RGBA32, false, true); EditorUtility.DisplayDialog("Shoreline Masker", "Your shorline mask has been created at " + path, "OK"); }
/// <summary> /// Create a waterflow map from the terrain /// </summary> /// <param name="terrain">Terrain to create the waterflow map from</param> public void CreateWaterFlowMap(Terrain terrain) { m_heightMap = new UnityHeightMap(terrain); int width = m_heightMap.Width(); int depth = m_heightMap.Depth(); m_waterFlowMap = new HeightMap(width, depth); //Avoid edges for now for (int x = 1; x < (width - 1); x++) { for (int z = 1; z < (depth - 1); z++) { TraceWaterFlow(x, z, width, depth); } } //Flip it so it matches the terrain m_waterFlowMap.Flip(); //Smooth the water map m_waterFlowMap.Smooth(m_waterflowSmoothIterations); }