public static BillboardAsset CreateBillboardAsset(GBillboardCreatorArgs args)
{
BillboardAsset billboard = new BillboardAsset();
billboard.SetVertices(args.Vertices);
billboard.SetIndices(Triangulate(args.Vertices));
billboard.width = args.Width;
billboard.height = args.Height;
billboard.bottom = args.Bottom;
Vector4[] texcoords = new Vector4[args.Row * args.Column];
Vector2 imageSize = new Vector2(1f / args.Column, 1f / args.Row);
Vector2 imageTopLeft = new Vector2(0, 0);
for (int y = 0; y < args.Row; ++y)
{
for (int x = 0; x < args.Column; ++x)
{
imageTopLeft = new Vector2(x * imageSize.x, y * imageSize.y);
texcoords[GUtilities.To1DIndex(x, y, args.Column)] = new Vector4(imageTopLeft.x, imageTopLeft.y, imageSize.x, imageSize.y);
}
}
billboard.SetImageTexCoords(texcoords);
billboard.name = args.Target.name + "_Billboard";
return(billboard);
}
public static void PrepareRenderTexture(ref RenderTexture rt, GBillboardCreatorArgs args)
{
int width = args.Column * args.CellSize;
int height = args.Row * args.CellSize;
if (args.Mode == GBillboardRenderMode.Flipbook)
{
width = args.CellSize;
height = args.CellSize;
}
int depth = 16;
RenderTextureFormat format = args.Mode == GBillboardRenderMode.Normal ? RenderTextureFormat.ARGBFloat : RenderTextureFormat.ARGB32;
if (rt == null ||
rt.width != width ||
rt.height != height ||
rt.depth != depth ||
rt.format != format)
{
if (rt != null)
{
rt.Release();
}
rt = new RenderTexture(width, height, depth, format, RenderTextureReadWrite.Linear);
}
}
private void RenderPreview()
{
GBillboardCreatorArgs args = ConstructArgs();
GBillboardCreator.PrepareRenderTexture(ref previewRt, args);
GBillboardCreator.RenderPreview(previewRt, args);
}
private static void RenderPreviewFlipbook(RenderTexture rt, GBillboardCreatorArgs args)
{
Clear(rt, Color.clear);
if (args.AtlasMaterial == null)
{
return;
}
args.Mode = GBillboardRenderMode.Flipbook;
Camera cam = CreatePreviewCamera(args);
cam.targetTexture = rt;
GameObject g = CreatePreviewGameObject(cam.transform, args);
int imageCount = args.Row * args.Column;
float angleStep = 360f / imageCount;
g.transform.rotation = Quaternion.Euler(0, args.CellIndex * angleStep, 0);
cam.rect = new Rect(0, 0, 1, 1);
cam.Render();
cam.targetTexture = null;
GUtilities.DestroyGameobject(cam.gameObject);
GUtilities.DestroyGameobject(g);
}
private GBillboardCreatorArgs ConstructArgs()
{
GBillboardCreatorArgs args = new GBillboardCreatorArgs();
args.Mode = mode;
args.Target = target;
args.Row = row;
args.Column = column;
args.CellSize = cellSize;
args.CameraOffset = cameraOffset;
args.CameraSize = cameraSize;
args.AtlasMaterial = atlasMaterial;
args.NormalMaterial = normalMaterial;
args.SrcColorProps = srcColorProps;
//args.DesColorProps = desColorProps;
args.DesColorProps = "_Color";
args.SrcTextureProps = srcTextureProps;
//args.DesTextureProps = desTextureProps;
args.DesTextureProps = "_MainTex";
args.CellIndex = cellIndex % (args.Row * args.Column);
args.Vertices = vertices.ToArray();
args.Width = width;
args.Height = height;
args.Bottom = bottom;
return(args);
}
public static void RenderPreview(RenderTexture rt, GBillboardCreatorArgs args)
{
if (args.Mode == GBillboardRenderMode.Atlas)
{
RenderPreviewAtlas(rt, args);
}
else if (args.Mode == GBillboardRenderMode.Normal)
{
RenderPreviewNormal(rt, args);
}
else if (args.Mode == GBillboardRenderMode.Flipbook)
{
RenderPreviewFlipbook(rt, args);
}
}
public static Texture2D RenderNormal(GBillboardCreatorArgs args)
{
args.Mode = GBillboardRenderMode.Normal;
RenderTexture rt = null;
PrepareRenderTexture(ref rt, args);
RenderPreviewNormal(rt, args);
Texture2D atlas = new Texture2D(rt.width, rt.height, TextureFormat.ARGB32, true, true);
GCommon.CopyFromRT(atlas, rt);
rt.Release();
GUtilities.DestroyObject(rt);
atlas.name = args.Target.name + "_Normal";
return(atlas);
}
private void DrawUtilities()
{
string label = "Utilites";
string id = "billboardeditor-utilities";
GEditorCommon.Foldout(label, false, id, () =>
{
Rect fitButtonRect = EditorGUILayout.GetControlRect();
if (GUI.Button(fitButtonRect, "Fit Camera"))
{
GBillboardCreatorArgs args = GBillboardCreator.FitCameraToTarget(ConstructArgs());
CopyArgs(args);
}
});
}
private void DrawTargetSettings()
{
string label = "Target";
string id = "billboardeditor-target";
GEditorCommon.Foldout(label, false, id, () =>
{
EditorGUI.BeginChangeCheck();
target = EditorGUILayout.ObjectField("Prefab", target, typeof(GameObject), true) as GameObject;
if (EditorGUI.EndChangeCheck())
{
GBillboardCreatorArgs args = GBillboardCreator.FitCameraToTarget(ConstructArgs());
CopyArgs(args);
RefreshMaterialPropsSuggestions();
}
});
}
private static Camera CreatePreviewCamera(GBillboardCreatorArgs args)
{
GameObject previewCam = new GameObject("~BillboardEditorCam");
//previewCam.hideFlags = HideFlags.HideAndDontSave;
previewCam.transform.position = -Vector3.one * 10000;
previewCam.transform.rotation = Quaternion.identity;
previewCam.transform.localScale = Vector3.one;
Camera cam = previewCam.AddComponent <Camera>();
cam.orthographic = true;
cam.orthographicSize = args.CameraSize;
cam.clearFlags = CameraClearFlags.SolidColor;
cam.backgroundColor = args.Mode == GBillboardRenderMode.Normal ? new Color(0.5f, 0.5f, 1f, 1f) : Color.clear;
cam.depth = -1000;
cam.aspect = 1;
cam.enabled = false;
return(cam);
}
private static void RenderPreviewAtlas(RenderTexture rt, GBillboardCreatorArgs args)
{
Clear(rt, Color.clear);
if (args.AtlasMaterial == null)
{
return;
}
args.Mode = GBillboardRenderMode.Atlas;
Vector2 viewPortSize = new Vector2(1f / args.Column, 1f / args.Row);
Vector2 viewPortPosition = new Vector2(0, 0);
RenderTexture tempRt = new RenderTexture(Mathf.RoundToInt(viewPortSize.x * rt.width), Mathf.RoundToInt(viewPortSize.y * rt.height), 24, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Linear);
Camera cam = CreatePreviewCamera(args);
cam.targetTexture = tempRt;
GameObject g = CreatePreviewGameObject(cam.transform, args);
int imageCount = args.Row * args.Column;
float angleStep = 360f / imageCount;
for (int y = 0; y < args.Row; ++y)
{
for (int x = 0; x < args.Column; ++x)
{
Clear(tempRt, Color.clear);
g.transform.rotation = Quaternion.Euler(0, GUtilities.To1DIndex(x, y, args.Column) * angleStep - 90, 0);
cam.Render();
viewPortPosition = new Vector2(x * viewPortSize.x, y * viewPortSize.y);
GCommon.DrawTexture(rt, tempRt, new Rect(viewPortPosition, viewPortSize), GInternalMaterials.UnlitTransparentMaterial);
}
}
cam.targetTexture = null;
GUtilities.DestroyGameobject(cam.gameObject);
GUtilities.DestroyGameobject(g);
tempRt.Release();
GUtilities.DestroyObject(tempRt);
}
private void CopyArgs(GBillboardCreatorArgs args)
{
mode = args.Mode;
target = args.Target;
row = args.Row;
column = args.Column;
cellSize = args.CellSize;
cameraOffset = args.CameraOffset;
cameraSize = args.CameraSize;
atlasMaterial = args.AtlasMaterial;
normalMaterial = args.NormalMaterial;
srcColorProps = args.SrcColorProps;
desColorProps = args.DesColorProps;
srcTextureProps = args.SrcTextureProps;
desTextureProps = args.DesTextureProps;
cellIndex = args.CellIndex;
vertices = new List <Vector2>(args.Vertices);
width = args.Width;
height = args.Height;
bottom = args.Bottom;
tris = GBillboardCreator.Triangulate(vertices.ToArray());
}
public static GBillboardCreatorArgs FitCameraToTarget(GBillboardCreatorArgs args)
{
if (args.Target == null)
{
return(args);
}
Renderer[] renderers = args.Target.GetComponentsInChildren <Renderer>();
if (renderers.Length > 0)
{
Bounds b = new Bounds();
b.SetMinMax(
renderers[0].bounds.min,
renderers[0].bounds.max);
for (int i = 1; i < renderers.Length; ++i)
{
Bounds bi = renderers[i].bounds;
b.Encapsulate(bi.min);
b.Encapsulate(bi.max);
}
b.Encapsulate(args.Target.transform.position);
Vector3 center = args.Target.transform.position;
float dWidth = 2 * Mathf.Max(
Vector3.Distance(center, new Vector3(b.min.x, center.y, b.min.z)),
Vector3.Distance(center, new Vector3(b.max.x, center.y, b.max.z)));
float dHeight = b.size.y;
float bottom = b.min.y - center.y;
args.CameraSize = Mathf.Max(dWidth, dHeight) * 0.5f;
args.CameraOffset = -(b.center - center) + Vector3.forward * dWidth * 2;
args.Height = dHeight - bottom;
args.Bottom = bottom;
args.Width = dHeight;
}
return(args);
}
private static GameObject CreatePreviewGameObject(Transform cameraTransform, GBillboardCreatorArgs args)
{
if (args.Target == null)
{
return(new GameObject("~EmptyBillboardCreatorTarget"));
}
GameObject g = GameObject.Instantiate(args.Target) as GameObject;
g.name = "~BillboardCreatorTarget";
//g.hideFlags = HideFlags.HideAndDontSave;
g.transform.position = cameraTransform.transform.TransformPoint(args.CameraOffset);
g.transform.rotation = cameraTransform.rotation;
g.transform.localScale = Vector3.one;
Material baseMaterial = args.Mode == GBillboardRenderMode.Normal ? args.NormalMaterial : args.AtlasMaterial;
MeshRenderer[] renderers = g.GetComponentsInChildren <MeshRenderer>();
for (int i = 0; i < renderers.Length; ++i)
{
Material[] sharedMaterials = renderers[i].sharedMaterials;
for (int j = 0; j < sharedMaterials.Length; ++j)
{
//Material mat = Object.Instantiate<Material>(baseMaterial);
Material mat = new Material(baseMaterial.shader);
mat.SetColor(args.DesColorProps, Color.white);
mat.SetTexture(args.DesTextureProps, null);
//mat.CopyPropertiesFromMaterial(sharedMaterials[j]);
try
{
if (sharedMaterials[j].HasProperty(args.SrcColorProps))
{
Color color = sharedMaterials[j].GetColor(args.SrcColorProps);
color.a = 1;
if (mat.HasProperty(args.DesColorProps))
{
mat.SetColor(args.DesColorProps, color);
}
}
else
{
if (mat.HasProperty(args.DesColorProps))
{
mat.SetColor(args.DesColorProps, Color.white);
}
}
}
catch { }
try
{
if (sharedMaterials[j].HasProperty(args.SrcTextureProps))
{
Texture tex = sharedMaterials[j].GetTexture(args.SrcTextureProps);
if (mat.HasProperty(args.DesTextureProps))
{
mat.SetTexture(args.DesTextureProps, tex);
}
}
}
catch { }
sharedMaterials[j] = mat;
}
renderers[i].sharedMaterials = sharedMaterials;
}
return(g);
}
private void SaveAssets()
{
string folder = EditorUtility.OpenFolderPanel("Select Folder", "Assets/", "");
if (string.IsNullOrEmpty(folder))
{
return;
}
try
{
GAnalytics.Record(GAnalytics.BILLBOARD_SAVE);
EditorUtility.DisplayProgressBar("Saving", "Saving assets...", 1f);
GBillboardCreatorArgs args = ConstructArgs();
BillboardAsset billboard = GBillboardCreator.CreateBillboardAsset(args);
Texture2D atlas = GBillboardCreator.RenderAtlas(args);
Texture2D normal = GBillboardCreator.RenderNormal(args);
string billboardPath = Path.Combine(FileUtil.GetProjectRelativePath(folder), billboard.name + ".asset");
BillboardAsset billboardAsset = AssetDatabase.LoadAssetAtPath <BillboardAsset>(billboardPath);
if (billboardAsset == null)
{
AssetDatabase.CreateAsset(billboard, billboardPath);
billboardAsset = billboard;
}
else
{
billboardAsset.SetVertices(billboard.GetVertices());
billboardAsset.SetIndices(billboard.GetIndices());
billboardAsset.SetImageTexCoords(billboard.GetImageTexCoords());
billboardAsset.width = billboard.width;
billboardAsset.height = billboard.height;
billboardAsset.bottom = billboard.bottom;
billboardAsset.name = billboard.name;
}
string atlasPath = Path.Combine(FileUtil.GetProjectRelativePath(folder), atlas.name + ".png");
byte[] atlasData = atlas.EncodeToPNG();
File.WriteAllBytes(atlasPath, atlasData);
GUtilities.DestroyObject(atlas);
string normalPath = Path.Combine(FileUtil.GetProjectRelativePath(folder), normal.name + ".png");
byte[] normalData = normal.EncodeToPNG();
File.WriteAllBytes(normalPath, normalData);
GUtilities.DestroyObject(normal);
AssetDatabase.Refresh();
TextureImporter atlasImporter = AssetImporter.GetAtPath(atlasPath) as TextureImporter;
atlasImporter.wrapMode = TextureWrapMode.Clamp;
atlasImporter.alphaIsTransparency = true;
atlasImporter.SaveAndReimport();
atlas = AssetDatabase.LoadAssetAtPath <Texture2D>(atlasPath);
TextureImporter normalImporter = AssetImporter.GetAtPath(normalPath) as TextureImporter;
normalImporter.textureType = TextureImporterType.NormalMap;
normalImporter.wrapMode = TextureWrapMode.Clamp;
normalImporter.SaveAndReimport();
normal = AssetDatabase.LoadAssetAtPath <Texture2D>(normalPath);
Material mat = null;
if (GCommon.CurrentRenderPipeline == GRenderPipelineType.Universal)
{
mat = Object.Instantiate(GGriffinSettings.Instance.TerrainDataDefault.Foliage.TreeBillboardMaterialURP);
}
else if (GCommon.CurrentRenderPipeline == GRenderPipelineType.Lightweight)
{
mat = Object.Instantiate(GGriffinSettings.Instance.TerrainDataDefault.Foliage.TreeBillboardMaterialLWRP);
}
else
{
mat = Object.Instantiate(GGriffinSettings.Instance.TerrainDataDefault.Foliage.TreeBillboardMaterial);
}
if (mat != null)
{
if (mat.HasProperty("_MainTex"))
{
mat.SetTexture("_MainTex", atlas);
}
if (mat.HasProperty("_BumpMap"))
{
mat.SetTexture("_BumpMap", normal);
}
mat.name = args.Target.name + "_BillboardMaterial";
string matPath = Path.Combine(FileUtil.GetProjectRelativePath(folder), mat.name + ".mat");
AssetDatabase.CreateAsset(mat, matPath);
billboardAsset.material = mat;
}
AssetDatabase.Refresh();
}
catch (System.Exception e)
{
Debug.LogError(e.ToString());
}
EditorUtility.ClearProgressBar();
}