void GetVoxelThumbnails(VoxelDefinition vd)
{
Texture2D top, side, bottom;
top = side = bottom = null;
if (vd.overrideMaterial && vd.texturesByMaterial)
{
Material mat = vd.overrideMaterialNonGeo;
Texture2D tex = (Texture2D)mat.mainTexture;
if (tex != null)
{
#if UNITY_EDITOR
string path = UnityEditor.AssetDatabase.GetAssetPath(tex);
if (!string.IsNullOrEmpty(path))
{
UnityEditor.TextureImporter timp = UnityEditor.AssetImporter.GetAtPath(path) as UnityEditor.TextureImporter;
if (timp != null && !timp.isReadable)
{
timp.isReadable = true;
timp.SaveAndReimport();
}
}
#endif
top = side = bottom = Instantiate <Texture2D> (tex);
}
}
else
{
if (vd.renderType == RenderType.Custom && vd.textureSample != null)
{
top = side = bottom = vd.textureSample;
}
else
{
top = vd.textureTop;
side = vd.textureSide;
bottom = vd.textureBottom;
}
}
if (top != null)
{
vd.textureThumbnailTop = Instantiate(top) as Texture2D;
vd.textureThumbnailTop.hideFlags = HideFlags.DontSave;
TextureTools.Scale(vd.textureThumbnailTop, 64, 64, FilterMode.Point);
}
if (side != null)
{
vd.textureThumbnailSide = Instantiate(side) as Texture2D;
vd.textureThumbnailSide.hideFlags = HideFlags.DontSave;
TextureTools.Scale(vd.textureThumbnailSide, 64, 64, FilterMode.Point);
}
if (bottom != null)
{
vd.textureThumbnailBottom = Instantiate(bottom) as Texture2D;
vd.textureThumbnailBottom.hideFlags = HideFlags.DontSave;
TextureTools.Scale(vd.textureThumbnailBottom, 64, 64, FilterMode.Point);
}
}
public static void Smooth(Texture2D tex, float smoothAmount)
{
int w = tex.width;
int h = tex.height;
int ws = Mathf.Clamp((int)(w * (1f - smoothAmount)), 1, w);
int hs = Mathf.Clamp((int)(h * (1f - smoothAmount)), 1, h);
TextureTools.Scale(tex, ws, hs);
TextureTools.Scale(tex, w, h);
}
Color32[] CombineNormalsAndElevation(Texture2D normalMap, Texture2D elevationMap)
{
if (elevationMap == null && normalMap == null)
{
return(GetDefaultMapColors());
}
Color32[] normalMapColors, elevationMapColors;
if (normalMap == null)
{
normalMapColors = GetDefaultMapColors();
}
else if (normalMap.width != textureSize)
{
normalMap = Instantiate(normalMap) as Texture2D;
normalMap.hideFlags = HideFlags.DontSave;
TextureTools.Scale(normalMap, textureSize, textureSize, FilterMode.Point);
normalMapColors = normalMap.GetPixels32();
DestroyImmediate(normalMap);
}
else
{
normalMapColors = normalMap.GetPixels32();
}
if (elevationMap == null)
{
elevationMapColors = GetDefaultMapColors();
}
else if (elevationMap.width != textureSize)
{
elevationMap = Instantiate(elevationMap) as Texture2D;
elevationMap.hideFlags = HideFlags.DontSave;
TextureTools.Scale(elevationMap, textureSize, textureSize, FilterMode.Point);
elevationMapColors = elevationMap.GetPixels32();
DestroyImmediate(elevationMap);
}
else
{
elevationMapColors = elevationMap.GetPixels32();
}
for (int k = 0; k < normalMapColors.Length; k++)
{
normalMapColors [k].a = elevationMapColors [k].r; // copy elevation into alpha channel of normal map to save 1 texture slot in texture array and optimize cache
}
return(normalMapColors);
}
public static Texture2D GetSolidTexture(Texture2D tex)
{
if (tex == null)
{
return(tex);
}
TextureTools.EnsureTextureReadable(tex);
Texture2D tex2 = new Texture2D(tex.width, tex.height, TextureFormat.ARGB32, false);
tex2.name = tex.name;
Color32[] colors = tex.GetPixels32();
for (int k = 0; k < colors.Length; k++)
{
colors [k].a = 255;
}
tex2.SetPixels32(colors);
tex2.Apply();
return(tex2);
}
Color32[] CombineAlbedoAndEmission(Texture2D albedoMap, Texture2D emissionMap = null)
{
Color32[] mapColors;
if (albedoMap == null)
{
return(GetPinkColors());
}
if (albedoMap.width != textureSize)
{
albedoMap = Instantiate(albedoMap) as Texture2D;
albedoMap.hideFlags = HideFlags.DontSave;
TextureTools.Scale(albedoMap, textureSize, textureSize, FilterMode.Point);
mapColors = albedoMap.GetPixels32();
DestroyImmediate(albedoMap);
}
else
{
mapColors = albedoMap.GetPixels32();
}
if (emissionMap == null)
{
return(mapColors);
}
Color32[] emissionColors;
if (emissionMap.width != textureSize)
{
emissionMap = Instantiate(emissionMap) as Texture2D;
emissionMap.hideFlags = HideFlags.DontSave;
TextureTools.Scale(emissionMap, textureSize, textureSize, FilterMode.Point);
emissionColors = emissionMap.GetPixels32();
DestroyImmediate(emissionMap);
}
else
{
emissionColors = emissionMap.GetPixels32();
}
for (int k = 0; k < mapColors.Length; k++)
{
mapColors [k].a = (byte)(255 - emissionColors [k].r);
}
return(mapColors);
}
void GetVoxelThumbnails(VoxelDefinition vd)
{
if (vd.textureTop != null)
{
vd.textureThumbnailTop = Instantiate(vd.textureTop) as Texture2D;
vd.textureThumbnailTop.hideFlags = HideFlags.DontSave;
TextureTools.Scale(vd.textureThumbnailTop, 64, 64, FilterMode.Point);
}
if (vd.textureSide != null)
{
vd.textureThumbnailSide = Instantiate(vd.textureSide) as Texture2D;
vd.textureThumbnailSide.hideFlags = HideFlags.DontSave;
TextureTools.Scale(vd.textureThumbnailSide, 64, 64, FilterMode.Point);
}
if (vd.textureBottom != null)
{
vd.textureThumbnailBottom = Instantiate(vd.textureBottom) as Texture2D;
vd.textureThumbnailBottom.hideFlags = HideFlags.DontSave;
TextureTools.Scale(vd.textureThumbnailBottom, 64, 64, FilterMode.Point);
}
}
public override void OnInspectorGUI()
{
if (tg == null)
{
return;
}
if (tg.splatSettings == null || tg.splatSettings.Length == 0)
{
tg.Initialize();
}
serializedObject.Update();
if (titleLabelStyle == null)
{
titleLabelStyle = new GUIStyle(EditorStyles.label);
}
titleLabelStyle.normal.textColor = titleColor;
titleLabelStyle.fontStyle = FontStyle.Bold;
if (boxStyle == null)
{
boxStyle = new GUIStyle(GUI.skin.box);
}
if (sectionHeaderStyle == null)
{
sectionHeaderStyle = new GUIStyle(EditorStyles.foldout);
}
sectionHeaderStyle.SetFoldoutColor();
EditorGUILayout.BeginHorizontal();
TerrainData prevTD = (TerrainData)terrainData.objectReferenceValue;
EditorGUILayout.PropertyField(terrainData);
TerrainData td = (TerrainData)terrainData.objectReferenceValue;
if (td != prevTD)
{
tg.ExamineTerrainData();
}
if (GUILayout.Button("Refresh", GUILayout.Width(60)))
{
tg.ExamineTerrainData();
}
EditorGUILayout.EndHorizontal();
EditorGUILayout.PropertyField(seaLevel);
EditorGUILayout.PropertyField(waterVoxel);
bool needCreate = false;
bool needAssign = false;
bool allIgnored = true;
if (tg.terrainData != null)
{
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Thumbnail Size", GUILayout.Width(EditorGUIUtility.labelWidth));
thumbnailSize = EditorGUILayout.IntSlider(thumbnailSize, 16, 256);
EditorGUILayout.EndHorizontal();
EditorGUILayout.Separator();
expandTerrainTextures = EditorGUILayout.Foldout(expandTerrainTextures, new GUIContent("Terrain Textures"), true, sectionHeaderStyle);
if (expandTerrainTextures)
{
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Texture Size", GUILayout.Width(EditorGUIUtility.labelWidth));
terrainTextureSize = EditorGUILayout.IntField(terrainTextureSize);
EditorGUILayout.EndHorizontal();
#if UNITY_2018_3_OR_NEWER
for (int k = 0; k < tg.terrainData.terrainLayers.Length; k++)
{
#else
for (int k = 0; k < tg.terrainData.splatPrototypes.Length; k++)
{
#endif
EditorGUILayout.LabelField("Texture " + (k + 1), GUILayout.Width(80));
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField(new GUIContent(tg.splatSettings [k].preview), boxStyle, GUILayout.Width(thumbnailSize), GUILayout.Height(thumbnailSize));
EditorGUILayout.BeginVertical();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Voxel Top", GUILayout.Width(80));
tg.splatSettings [k].top = (VoxelDefinition)EditorGUILayout.ObjectField(tg.splatSettings [k].top, typeof(VoxelDefinition), false);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Smooth", GUILayout.Width(80));
tg.splatSettings [k].smoothPower = EditorGUILayout.Slider(tg.splatSettings [k].smoothPower, 0, 1f);
EditorGUILayout.EndHorizontal();
#if UNITY_2018_3_OR_NEWER
int textureCount = tg.terrainData.terrainLayers.Length;
#else
int textureCount = tg.terrainData.splatPrototypes.Length;
#endif
if (textureIndices == null || textureIndices.Length != textureCount)
{
textureIndices = new string[textureCount];
textureIndicesValues = new int[textureCount];
for (int t = 0; t < textureCount; t++)
{
textureIndices [t] = "Texture " + (t + 1);
textureIndicesValues [t] = (t + 1);
}
}
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Dirt With", GUILayout.Width(80));
tg.splatSettings [k].dirtWith = EditorGUILayout.IntPopup(tg.splatSettings [k].dirtWith, textureIndices, textureIndicesValues);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Blend Power", GUILayout.Width(80));
tg.splatSettings [k].blendPower = EditorGUILayout.Slider(tg.splatSettings [k].blendPower, 0, 1f);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Voxel Dirt", GUILayout.Width(80));
tg.splatSettings [k].dirt = (VoxelDefinition)EditorGUILayout.ObjectField(tg.splatSettings [k].dirt, typeof(VoxelDefinition), false);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Action", GUILayout.Width(80));
tg.splatSettings [k].action = (UnityTerrainGenerator.TerrainResourceAction)EditorGUILayout.EnumPopup(tg.splatSettings [k].action);
EditorGUILayout.EndHorizontal();
EditorGUILayout.EndVertical();
EditorGUILayout.EndHorizontal();
if (tg.splatSettings [k].action != UnityTerrainGenerator.TerrainResourceAction.Ignore)
{
allIgnored = false;
}
if (tg.splatSettings [k].action == UnityTerrainGenerator.TerrainResourceAction.Create)
{
needCreate = true;
}
else if ((tg.splatSettings [k].top == null || tg.splatSettings [k].dirt == null) && tg.splatSettings [k].action == UnityTerrainGenerator.TerrainResourceAction.Assigned)
{
needAssign = true;
}
EditorGUILayout.Separator();
}
}
EditorGUILayout.Separator();
expandTrees = EditorGUILayout.Foldout(expandTrees, new GUIContent("Trees"), true, sectionHeaderStyle);
if (expandTrees)
{
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Texture Size", GUILayout.Width(EditorGUIUtility.labelWidth));
treeTextureSize = EditorGUILayout.IntField(treeTextureSize);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Frond Density", GUILayout.Width(EditorGUIUtility.labelWidth));
frondDensity = EditorGUILayout.Slider(frondDensity, 0f, 1f);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Tree Scale", GUILayout.Width(EditorGUIUtility.labelWidth));
treeScale = EditorGUILayout.Slider(treeScale, 0.1f, 2f);
EditorGUILayout.EndHorizontal();
for (int k = 0; k < tg.terrainData.treePrototypes.Length; k++)
{
EditorGUILayout.LabelField("Tree " + (k + 1), GUILayout.Width(80));
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField(new GUIContent(tg.treeSettings [k].preview), boxStyle, GUILayout.Width(thumbnailSize), GUILayout.Height(thumbnailSize));
EditorGUILayout.BeginVertical();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Model Def.", GUILayout.Width(80));
tg.treeSettings [k].md = (ModelDefinition)EditorGUILayout.ObjectField(tg.treeSettings [k].md, typeof(ModelDefinition), false);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Smooth", GUILayout.Width(80));
tg.treeSettings [k].smoothPower = EditorGUILayout.Slider(tg.treeSettings [k].smoothPower, 0, 1f);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Action", GUILayout.Width(80));
tg.treeSettings [k].action = (UnityTerrainGenerator.TerrainResourceAction)EditorGUILayout.EnumPopup(tg.treeSettings [k].action);
EditorGUILayout.EndHorizontal();
EditorGUILayout.EndVertical();
EditorGUILayout.EndHorizontal();
if (tg.treeSettings [k].action != UnityTerrainGenerator.TerrainResourceAction.Ignore)
{
allIgnored = false;
}
if (tg.treeSettings [k].action == UnityTerrainGenerator.TerrainResourceAction.Create)
{
needCreate = true;
}
else if (tg.treeSettings[k].md == null && tg.treeSettings[k].action == UnityTerrainGenerator.TerrainResourceAction.Assigned)
{
needAssign = true;
}
EditorGUILayout.Separator();
}
}
EditorGUILayout.Separator();
expandVegetation = EditorGUILayout.Foldout(expandVegetation, new GUIContent("Vegetation"), true, sectionHeaderStyle);
if (expandVegetation)
{
EditorGUILayout.PropertyField(vegetationDensity);
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Texture Size", GUILayout.Width(EditorGUIUtility.labelWidth));
vegetationTextureSize = EditorGUILayout.IntField(vegetationTextureSize);
EditorGUILayout.EndHorizontal();
for (int k = 0; k < tg.terrainData.detailPrototypes.Length; k++)
{
EditorGUILayout.LabelField("Detail " + (k + 1), GUILayout.Width(EditorGUIUtility.labelWidth));
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField(new GUIContent(tg.detailSettings [k].preview), boxStyle, GUILayout.Width(thumbnailSize), GUILayout.Height(thumbnailSize));
EditorGUILayout.BeginVertical();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Voxel Def.", GUILayout.Width(80));
tg.detailSettings [k].vd = (VoxelDefinition)EditorGUILayout.ObjectField(tg.detailSettings [k].vd, typeof(VoxelDefinition), false);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Action", GUILayout.Width(80));
tg.detailSettings [k].action = (UnityTerrainGenerator.TerrainResourceAction)EditorGUILayout.EnumPopup(tg.detailSettings [k].action);
EditorGUILayout.EndHorizontal();
EditorGUILayout.EndVertical();
EditorGUILayout.EndHorizontal();
if (tg.detailSettings [k].action != UnityTerrainGenerator.TerrainResourceAction.Ignore)
{
allIgnored = false;
}
if (tg.detailSettings [k].action == UnityTerrainGenerator.TerrainResourceAction.Create)
{
needCreate = true;
}
else if (tg.detailSettings [k].vd == null && tg.detailSettings [k].action == UnityTerrainGenerator.TerrainResourceAction.Assigned)
{
needAssign = true;
}
EditorGUILayout.Separator();
}
}
}
EditorGUILayout.Separator();
if (!allIgnored)
{
if (needAssign)
{
EditorGUILayout.HelpBox("Please check all 'Assigned' resources are correctly set in the list above or press 'Refresh' to reload TerrainData info.", MessageType.Warning);
}
else
{
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Clean Folders", GUILayout.Width(EditorGUIUtility.labelWidth));
cleanFolders = EditorGUILayout.Toggle(cleanFolders);
EditorGUILayout.EndHorizontal();
if (needCreate)
{
EditorGUILayout.HelpBox("Press 'Generate' to create voxel definitions for the terrain resources.", MessageType.Info);
if (GUILayout.Button("Generate"))
{
Generate(cleanFolders);
}
}
else
{
if (GUILayout.Button("Generate Again"))
{
Generate(true);
}
}
}
}
EditorGUILayout.Separator();
serializedObject.ApplyModifiedProperties();
}
void Generate(bool forceGeneration = false)
{
GenerateTerrainVoxels(forceGeneration);
GenerateTreeModels(forceGeneration);
GenerateVegetationVoxels(forceGeneration);
EditorUtility.SetDirty(tg);
AssetDatabase.SaveAssets();
}
string GetPath()
{
WorldDefinition wd = VoxelPlayEnvironment.instance.world;
return(System.IO.Path.GetDirectoryName(AssetDatabase.GetAssetPath(wd)) + "/Resources/" + wd.name);
}
Texture2D CreateTextureFile(Texture2D tex, string path, string filename, float smoothPower)
{
if (smoothPower > 0)
{
TextureTools.Smooth(tex, smoothPower);
}
byte[] texBytes = tex.EncodeToPNG();
string fullPath = path + "/" + filename + ".png";
System.IO.File.WriteAllBytes(fullPath, texBytes);
AssetDatabase.ImportAsset(fullPath);
TextureImporter importerSettings = (TextureImporter)TextureImporter.GetAtPath(fullPath);
if (importerSettings != null)
{
importerSettings.isReadable = true;
importerSettings.filterMode = FilterMode.Point;
importerSettings.mipmapEnabled = false;
importerSettings.SaveAndReimport();
}
tex = AssetDatabase.LoadAssetAtPath <Texture2D> (fullPath);
return(tex);
}
VoxelDefinition GenerateVoxelFromTexture(Texture2D textureTop, Texture2D textureSide, Texture2D textureDirt, int textureSize, string path, string voxelDefinitionName, RenderType renderType, float smoothPower)
{
// Prepare top texture
Texture2D texTop = null;
if (textureTop != null)
{
texTop = Instantiate <Texture2D> (textureTop);
texTop.name = textureTop.name;
if (texTop.width != textureSize || texTop.height != textureSize)
{
TextureTools.Scale(texTop, textureSize, textureSize, FilterMode.Bilinear);
}
string texName = Sanitize(texTop.name);
texTop = CreateTextureFile(texTop, path, texName, smoothPower);
}
// Side texture
Texture2D texSide = null;
if (textureSide != null)
{
if (textureSide == textureTop)
{
texSide = texTop;
}
else
{
texSide = Instantiate <Texture2D> (textureSide);
texSide.name = textureSide.name;
if (texSide.width != textureSize || texSide.height != textureSize)
{
TextureTools.Scale(texSide, textureSize, textureSize, FilterMode.Bilinear);
}
// Save texture
string texSideName = Sanitize(texSide.name);
texSide = CreateTextureFile(texSide, path, texSideName, smoothPower);
}
}
// Dirt texture
Texture2D texDirt = null;
if (textureDirt != null)
{
if (textureDirt == textureTop)
{
texDirt = texTop;
}
else
{
texDirt = Instantiate <Texture2D> (textureDirt);
texDirt.name = textureDirt.name;
if (texDirt.width != textureSize || texDirt.height != textureSize)
{
TextureTools.Scale(texDirt, textureSize, textureSize, FilterMode.Bilinear);
}
// Save texture
string texDirtName = Sanitize(texDirt.name);
texDirt = CreateTextureFile(texDirt, path, texDirtName, smoothPower);
}
}
// Setup and save voxel definition
VoxelDefinition vd = ScriptableObject.CreateInstance <VoxelDefinition> ();
vd.renderType = renderType;
vd.textureTop = texTop;
vd.textureSide = texSide;
vd.textureBottom = texDirt;
switch (renderType)
{
case RenderType.CutoutCross:
vd.navigatable = false;
vd.windAnimation = true;
break;
case RenderType.Cutout:
vd.navigatable = false;
vd.windAnimation = true;
break;
default:
vd.navigatable = true;
vd.windAnimation = false;
break;
}
vd.name = Sanitize(voxelDefinitionName);
string fullPath = path + "/" + vd.name + ".asset";
AssetDatabase.CreateAsset(vd, fullPath);
return(vd);
}
void GenerateTerrainVoxels(bool forceGeneration)
{
string path = GetPath() + "/TerrainVoxels";
CheckDirectory(path);
#if UNITY_2018_3_OR_NEWER
for (int k = 0; k < tg.terrainData.terrainLayers.Length; k++)
{
#else
for (int k = 0; k < tg.terrainData.splatPrototypes.Length; k++)
{
#endif
if (forceGeneration || tg.splatSettings [k].action == UnityTerrainGenerator.TerrainResourceAction.Create)
{
if (tg.splatSettings [k].preview == null)
{
continue;
}
int dirtWith = tg.splatSettings [k].dirtWith - 1;
string texBaseName = tg.splatSettings [k].preview.name;
Texture2D texTop = Instantiate(tg.splatSettings [k].preview) as Texture2D;
texTop.name = texBaseName + " Top";
Texture2D texOther = Instantiate(tg.splatSettings [dirtWith].preview) as Texture2D;
Texture2D texDirt = CreateDirtTexture(texTop, texOther, tg.splatSettings [dirtWith].blendPower, 0);
texDirt.name = texBaseName + " Dirt";
Texture2D texSide = CreateSideTexture(texTop, texDirt);
texSide.name = texBaseName + " Side";
tg.splatSettings [k].top = GenerateVoxelFromTexture(texTop, texSide, texDirt, terrainTextureSize, path, "VoxelTerrainTop " + texBaseName, RenderType.Opaque, tg.splatSettings[k].smoothPower);
tg.splatSettings [k].dirt = GenerateVoxelFromTexture(texDirt, texDirt, texDirt, terrainTextureSize, path, "VoxelTerrainDirt " + texBaseName, RenderType.Opaque, tg.splatSettings[k].smoothPower);
tg.splatSettings [k].action = UnityTerrainGenerator.TerrainResourceAction.Assigned;
}
}
}
Texture2D CreateDirtTexture(Texture2D texTop, Texture2D texOther, float smoothPower, float blendAmount)
{
if (texTop.width != terrainTextureSize || texTop.height != terrainTextureSize)
{
TextureTools.Scale(texTop, terrainTextureSize, terrainTextureSize);
}
if (texOther.width != terrainTextureSize || texOther.height != terrainTextureSize)
{
TextureTools.Scale(texOther, terrainTextureSize, terrainTextureSize);
}
Color32[] colorsTop = texTop.GetPixels32();
Color32[] colorsOther = texOther.GetPixels32();
for (int k = 0; k < colorsTop.Length; k++)
{
colorsTop [k].r = (byte)Mathf.Lerp(colorsTop [k].r, colorsOther [k].r, blendAmount);
colorsTop [k].g = (byte)Mathf.Lerp(colorsTop [k].g, colorsOther [k].g, blendAmount);
colorsTop [k].b = (byte)Mathf.Lerp(colorsTop [k].b, colorsOther [k].b, blendAmount);
colorsTop [k].a = (byte)Mathf.Lerp(colorsTop [k].a, colorsOther [k].a, blendAmount);
}
Texture2D tex = new Texture2D(texTop.width, texTop.height, TextureFormat.ARGB32, false);
tex.SetPixels32(colorsTop);
tex.Apply(true);
return(tex);
}
Texture2D CreateSideTexture(Texture2D texTop, Texture2D texDirt)
{
// Make side texture
Color32[] colors = texTop.GetPixels32();
Color32[] colorsDirt = texDirt.GetPixels32();
int h = texTop.height;
int w = texTop.width;
int y0 = (int)(h * 0.6f);
int i = y0 * w;
for (int y = y0; y < h; y++)
{
float threshold = Mathf.Clamp01(2f * ((float)(y - y0)) / (h - y0));
for (int x = 0; x < w; x++, i++)
{
if (UnityEngine.Random.value < threshold)
{
colorsDirt [i].r = (byte)Mathf.Lerp(colorsDirt [i].r, colors [i].r, threshold);
colorsDirt [i].g = (byte)Mathf.Lerp(colorsDirt [i].g, colors [i].g, threshold);
colorsDirt [i].b = (byte)Mathf.Lerp(colorsDirt [i].b, colors [i].b, threshold);
colorsDirt [i].a = (byte)Mathf.Lerp(colorsDirt [i].a, colors [i].a, threshold);
}
}
}
Texture2D sideTexture = new Texture2D(w, h, TextureFormat.ARGB32, false);
sideTexture.SetPixels32(colorsDirt);
sideTexture.Apply(true);
return(sideTexture);
}
void GenerateVegetationVoxels(bool forceGeneration)
{
string path = GetPath() + "/Vegetation";
CheckDirectory(path);
for (int k = 0; k < tg.terrainData.detailPrototypes.Length; k++)
{
if (forceGeneration || tg.detailSettings [k].action == UnityTerrainGenerator.TerrainResourceAction.Create)
{
if (tg.detailSettings [k].preview == null)
{
continue;
}
TextureTools.EnsureTextureReadable(tg.detailSettings [k].preview);
tg.detailSettings [k].vd = GenerateVoxelFromTexture(null, tg.detailSettings [k].preview, null, vegetationTextureSize, path, "VoxelVegetation " + tg.detailSettings [k].preview.name, RenderType.CutoutCross, 0);
tg.detailSettings [k].action = UnityTerrainGenerator.TerrainResourceAction.Assigned;
}
}
}
void GenerateTreeModels(bool forceGeneration)
{
string path = GetPath() + "/Trees";
CheckDirectory(path);
List <ModelBit> bits = new List <ModelBit> ();
for (int k = 0; k < tg.terrainData.treePrototypes.Length; k++)
{
if (forceGeneration || tg.treeSettings [k].action == UnityTerrainGenerator.TerrainResourceAction.Create)
{
// Get tree size
GameObject o = tg.terrainData.treePrototypes [k].prefab;
// Look for LOD0
MeshRenderer[] rr = o.GetComponentsInChildren <MeshRenderer> ();
if (rr.Length == 0)
{
continue;
}
MeshRenderer r = rr [0];
for (int b = 0; b < rr.Length; b++)
{
if (rr [b].name.Contains("LOD0"))
{
r = rr [b];
break;
}
}
// Get bounds of renderer
Bounds bounds = r.bounds;
int sizeX = (int)(bounds.size.x * treeScale);
int sizeY = (int)(bounds.size.y * treeScale);
int sizeZ = (int)(bounds.size.z * treeScale);
if (sizeX == 0 || sizeY == 0 || sizeZ == 0)
{
continue;
}
// Build model definition
ModelDefinition md = ScriptableObject.CreateInstance <ModelDefinition> ();
md.sizeX = sizeX;
md.sizeY = sizeY;
md.sizeZ = sizeZ;
bits.Clear();
MeshFilter mf = r.GetComponent <MeshFilter> ();
Mesh mesh = mf.sharedMesh;
Vector3[] vertices = mesh.vertices;
Vector2[] uvs = mesh.uv;
for (int m = 0; m < mesh.subMeshCount; m++)
{
int[] triangles = mesh.GetTriangles(m);
for (int i = 0; i < triangles.Length; i += 3)
{
int i1 = triangles [i];
int i2 = triangles [i + 1];
int i3 = triangles [i + 2];
Vector3 v1 = vertices [i1];
Vector3 v2 = vertices [i2];
Vector3 v3 = vertices [i3];
Vector2 uv1 = uvs [i1];
Vector2 uv2 = uvs [i2];
Vector2 uv3 = uvs [i3];
AddModelBit(bits, md, (v1 + v2 + v3) * treeScale / 3f, (uv1 + uv2 + uv3) / 3f, r.sharedMaterials [m], path, tg.treeSettings [k].smoothPower);
}
}
md.bits = bits.ToArray();
string treeName = Sanitize(tg.terrainData.treePrototypes [k].prefab.name);
md.name = "Tree " + treeName;
string fullPath = path + "/" + md.name + ".asset";
AssetDatabase.CreateAsset(md, fullPath);
tg.treeSettings [k].md = md;
tg.treeSettings [k].action = UnityTerrainGenerator.TerrainResourceAction.Assigned;
}
}
}
void AddModelBit(List <ModelBit> bits, ModelDefinition md, Vector3 pos, Vector2 uv, Material mat, string path, float smoothPower)
{
Texture2D tex = (Texture2D)mat.mainTexture;
if (tex == null)
{
return;
}
int y = Mathf.Clamp(Mathf.FloorToInt(pos.y), 0, md.sizeY - 1);
int z = Mathf.Clamp(Mathf.FloorToInt(pos.z) + md.sizeZ / 2, 0, md.sizeZ - 1);
int x = Mathf.Clamp(Mathf.FloorToInt(pos.x) + md.sizeX / 2, 0, md.sizeX - 1);
int voxelIndex = y * md.sizeZ * md.sizeX + z * md.sizeX + x;
int bitCount = bits.Count;
if (bitCount > 0)
{
for (int k = bitCount - 1; k >= 0; k--)
{
if (bits [k].voxelIndex == voxelIndex)
{
return;
}
}
}
TextureTools.EnsureTextureReadable(tex);
ModelBit bit = new ModelBit();
bit.voxelIndex = voxelIndex;
VoxelDefinition vd;
if (textureVoxels == null)
{
textureVoxels = new Dictionary <Texture2D, VoxelDefinition> ();
}
if (!textureVoxels.TryGetValue(tex, out vd))
{
RenderType rt = RenderType.Cutout;
string matName = mat.name.ToUpper();
string texName = tex.name.ToUpper();
if (matName.Contains("BRANCH") || matName.Contains("BARK") || texName.Contains("BARK"))
{
rt = RenderType.Opaque;
vd = GenerateVoxelFromTexture(tex, tex, tex, treeTextureSize, path, "VoxelTree " + tex.name, rt, smoothPower);
}
else
{
Texture2D frondTex = GenerateFrondTexture(tex, uv, treeTextureSize, path);
vd = GenerateVoxelFromTexture(frondTex, frondTex, frondTex, treeTextureSize, path, "VoxelTree " + frondTex.name, rt, smoothPower);
}
textureVoxels [tex] = vd;
}
bit.voxelDefinition = vd;
bits.Add(bit);
}
Texture2D GenerateFrondTexture(Texture2D tex, Vector2 uv, int textureSize, string path)
{
Color32[] sourceColors = tex.GetPixels32();
// Extract representative colors around uv position
int w = textureSize;
int h = textureSize;
int x = Mathf.Clamp((int)(w * uv.x), 0, w - 1);
int y = Mathf.Clamp((int)(h * uv.y), 0, h - 1);
List <Color32> repColors = new List <Color32> ();
int gap = textureSize / 2;
for (int y0 = y - gap; y0 < y + gap; y0++)
{
int ty = Mathf.Clamp(y0, 0, h - 1);
for (int x0 = x - gap; x0 < x + gap; x0++)
{
int tx = Mathf.Clamp(x0, 0, w - 1);
repColors.Add(sourceColors [ty * w + tx]);
}
}
Color32[] colors = repColors.ToArray();
Color32[] newColors = new Color32[w * h];
int i = 0;
for (int k = 0; k < newColors.Length; k++)
{
if (UnityEngine.Random.value > frondDensity)
{
continue;
}
for (int c = 0; c < colors.Length; c++)
{
if (colors [i].a > 128)
{
break;
}
i++;
if (i >= colors.Length)
{
i = 0;
}
}
newColors [k] = colors [i];
newColors [k].a = 255;
i++;
if (i >= colors.Length)
{
i = 0;
}
}
Texture2D subTex = new Texture2D(w, h, TextureFormat.ARGB32, false);
subTex.filterMode = FilterMode.Point;
subTex.name = tex.name + " Frond";
subTex.SetPixels32(newColors);
subTex.Apply(true);
return(subTex);
}
void CheckDirectory(string path)
{
if (cleanFolders)
{
if (Directory.Exists(path))
{
System.IO.DirectoryInfo di = new DirectoryInfo(path);
foreach (FileInfo file in di.GetFiles())
{
file.Delete();
}
foreach (DirectoryInfo dir in di.GetDirectories())
{
dir.Delete(true);
}
}
AssetDatabase.Refresh();
}
System.IO.Directory.CreateDirectory(path);
}
string Sanitize(string s)
{
if (string.IsNullOrEmpty(s))
{
return("");
}
int k = s.IndexOf("(Clone)");
if (k >= 0)
{
s = s.Substring(0, k);
}
char[] invalidChars = System.IO.Path.GetInvalidFileNameChars();
for (int i = 0; i < invalidChars.Length; i++)
{
if (s.IndexOf(invalidChars [i]) >= 0)
{
s = s.Replace(invalidChars [i], '_');
}
}
return(s);
}
}
}
public void ExamineTerrainData()
{
#if UNITY_EDITOR
if (terrainData == null)
{
return;
}
#if UNITY_2018_3_OR_NEWER
for (int k = 0; k < terrainData.terrainLayers.Length && k < splatSettings.Length; k++)
{
splatSettings[k].preview = TextureTools.GetSolidTexture(terrainData.terrainLayers[k].diffuseTexture);
#else
for (int k = 0; k < terrainData.splatPrototypes.Length && k < splatSettings.Length; k++)
{
splatSettings [k].preview = TextureTools.GetSolidTexture(terrainData.splatPrototypes [k].texture);
#endif
if (splatSettings [k].dirtWith == 0)
{
splatSettings [k].dirtWith = (k + 1);
splatSettings [k].blendPower = 0.5f;
}
if (splatSettings [k].preview == null)
{
splatSettings [k].action = TerrainResourceAction.Ignore;
}
else if ((splatSettings [k].top == null || splatSettings [k].dirt == null) && splatSettings [k].action == TerrainResourceAction.Assigned)
{
splatSettings [k].action = TerrainResourceAction.Create;
}
}
for (int k = 0; k < terrainData.treePrototypes.Length; k++)
{
treeSettings [k].preview = UnityEditor.AssetPreview.GetAssetPreview(terrainData.treePrototypes [k].prefab);
if (treeSettings [k].preview == null)
{
treeSettings [k].action = TerrainResourceAction.Ignore;
}
else if (treeSettings [k].md == null && treeSettings [k].action == TerrainResourceAction.Assigned)
{
treeSettings [k].action = TerrainResourceAction.Create;
}
}
for (int k = 0; k < terrainData.detailPrototypes.Length; k++)
{
if (terrainData.detailPrototypes [k].prototype != null)
{
detailSettings [k].preview = UnityEditor.AssetPreview.GetAssetPreview(terrainData.detailPrototypes [k].prototype);
}
else
{
detailSettings [k].preview = terrainData.detailPrototypes [k].prototypeTexture;
}
if (detailSettings [k].preview == null)
{
detailSettings [k].action = TerrainResourceAction.Ignore;
}
else if (detailSettings [k].vd == null && detailSettings [k].action == TerrainResourceAction.Assigned)
{
detailSettings [k].action = TerrainResourceAction.Create;
}
}
UnityEditor.EditorUtility.SetDirty(this);
#endif
}
int GetHeightIndex(float x, float z)
{
int w = terrainData.heightmapResolution;
int h = terrainData.heightmapResolution;
float sx = terrainData.size.x;
float sz = terrainData.size.z;
float fx = w / sx;
float fz = h / sz;
int tx = (int)((x + sx / 2) * fx);
if (tx < 0 || tx >= w)
{
return(-1);
}
int ty = (int)((z + sz / 2) * fz);
if (ty < 0 || ty >= h)
{
return(-1);
}
return(ty * w + tx);
}
