private void ProcessLightmapsUnpacked()
{
ExportTextureFormat format = room.TextureFormat;
if (room.ExportOnlyHtml)
{
foreach (var lightPair in lightmapped)
{
int id = lightPair.Key;
List <RoomObject> toRender = lightPair.Value;
for (int i = 0; i < toRender.Count; i++)
{
RoomObject rObj = toRender[i];
string imgId = rObj.id + "_Baked";
UpdateTextureFormat(format, room.GetTexture(imgId), "");
}
}
return;
}
string lightMapsFolder = UnityUtil.GetLightmapsFolder();
Shader lightMapShader = Shader.Find("Hidden/LMapUnpacked");
JanusUtil.AssertShader(lightMapShader);
Material lightMap = new Material(lightMapShader);
lightMap.SetPass(0);
lightMap.SetFloat("_RelFStops", room.LightmapRelFStops);
lightMap.SetFloat("_IsLinear", PlayerSettings.colorSpace == ColorSpace.Linear ? 1 : 0);
// export lightmaps
int lmap = 0;
foreach (var lightPair in lightmapped)
{
int id = lightPair.Key;
List <RoomObject> toRender = lightPair.Value;
// get the path to the lightmap file
string lightMapFile = Path.Combine(lightMapsFolder, "Lightmap-" + id + "_comp_light.exr");
Texture2D texture = AssetDatabase.LoadAssetAtPath <Texture2D>(lightMapFile);
if (texture == null)
{
continue;
}
lightMap.SetTexture("_LightMapTex", texture);
for (int i = 0; i < toRender.Count; i++)
{
RoomObject rObj = toRender[i];
GameObject obj = rObj.UnityObj;
MeshRenderer renderer = obj.GetComponent <MeshRenderer>();
MeshFilter filter = obj.GetComponent <MeshFilter>();
Mesh mesh = filter.sharedMesh;
Transform trans = obj.transform;
Matrix4x4 world = Matrix4x4.TRS(trans.position, trans.rotation, trans.lossyScale);
Vector4 scaleOffset = renderer.lightmapScaleOffset;
float width = (1 - scaleOffset.z) * scaleOffset.x;
float height = (1 - scaleOffset.w) * scaleOffset.y;
float size = Math.Max(width, height);
int lightMapSize = (int)(room.LightmapMaxResolution * size);
lightMapSize = (int)Math.Pow(2, Math.Ceiling(Math.Log(lightMapSize) / Math.Log(2)));
lightMapSize = Math.Min(room.LightmapMaxResolution, Math.Max(lightMapSize, 16));
RenderTexture renderTexture = RenderTexture.GetTemporary(lightMapSize, lightMapSize, 0, RenderTextureFormat.ARGB32, RenderTextureReadWrite.sRGB);
Graphics.SetRenderTarget(renderTexture);
GL.Clear(true, true, new Color(0, 0, 0, 0)); // clear to transparent
Material[] mats = renderer.sharedMaterials;
lightMap.SetVector("_LightMapUV", renderer.lightmapScaleOffset);
for (int j = 0; j < mats.Length; j++)
{
//Material mat = mats[j];
lightMap.SetPass(0);
Graphics.DrawMeshNow(mesh, world, j);
}
// This is the only way to access data from a RenderTexture
Texture2D tex = new Texture2D(renderTexture.width, renderTexture.height, TextureFormat.ARGB32, false, false);
tex.ReadPixels(new Rect(0, 0, tex.width, tex.height), 0, 0);
string imgId = rObj.id + "_Baked";
tex.name = imgId;
tex.Apply(); // send the data back to the GPU so we can draw it on the preview area
Graphics.SetRenderTarget(null);
RenderTexture.ReleaseTemporary(renderTexture);
lmap++;
// save the texture file
ExportTexture(tex, format, room.GetTexture(rObj.image_id), false);
UObject.DestroyImmediate(tex);
}
}
UObject.DestroyImmediate(lightMap);
}
private void ProcessLightmapsBaked()
{
ExportTextureFormat format = room.TextureFormat;
if (room.ExportOnlyHtml)
{
foreach (var lightPair in lightmapped)
{
int id = lightPair.Key;
List <RoomObject> toRender = lightPair.Value;
for (int i = 0; i < toRender.Count; i++)
{
RoomObject rObj = toRender[i];
string imgId = rObj.id + "_Baked";
UpdateTextureFormat(format, room.GetTexture(imgId), "");
}
}
return;
}
string lightMapsFolder = UnityUtil.GetLightmapsFolder();
// only load shader now, so if the user is not exporting lightmaps
// he doesn't need to have it on his project folder
Shader lightMapShader = Shader.Find("Hidden/LMapBaked");
JanusUtil.AssertShader(lightMapShader);
Material lightMap = new Material(lightMapShader);
lightMap.SetPass(0);
lightMap.SetFloat("_RelFStops", room.LightmapRelFStops);
lightMap.SetFloat("_IsLinear", PlayerSettings.colorSpace == ColorSpace.Linear ? 1 : 0);
// export lightmaps
int lmap = 0;
foreach (var lightPair in lightmapped)
{
int id = lightPair.Key;
List <RoomObject> toRender = lightPair.Value;
// get the path to the lightmap file
string lightMapFile = Path.Combine(lightMapsFolder, "Lightmap-" + id + "_comp_light.exr");
Texture2D texture = AssetDatabase.LoadAssetAtPath <Texture2D>(lightMapFile);
if (texture == null)
{
continue;
}
lightMap.SetTexture("_LightMapTex", texture);
for (int i = 0; i < toRender.Count; i++)
{
RoomObject rObj = toRender[i];
GameObject obj = rObj.UnityObj;
MeshRenderer renderer = obj.GetComponent <MeshRenderer>();
MeshFilter filter = obj.GetComponent <MeshFilter>();
Mesh mesh = filter.sharedMesh;
Transform trans = obj.transform;
Matrix4x4 world = Matrix4x4.TRS(trans.position, trans.rotation, trans.lossyScale);
Vector4 scaleOffset = renderer.lightmapScaleOffset;
float width = (1 - scaleOffset.z) * scaleOffset.x;
float height = (1 - scaleOffset.w) * scaleOffset.y;
float size = Math.Max(width, height);
// guarantee were not scaling stuff up
int maxLmapRes = Math.Min(room.LightmapMaxResolution, texture.width);
int lightMapSize = (int)(maxLmapRes * size);
lightMapSize = (int)Math.Pow(2, Math.Ceiling(Math.Log(lightMapSize) / Math.Log(2)));
lightMapSize = Math.Min(maxLmapRes, Math.Max(lightMapSize, 16));
RenderTexture renderTexture = RenderTexture.GetTemporary(lightMapSize, lightMapSize, 0, RenderTextureFormat.ARGB32);
Graphics.SetRenderTarget(renderTexture);
GL.Clear(true, true, new Color(0, 0, 0, 0)); // clear to transparent
Material[] mats = renderer.sharedMaterials;
for (int j = 0; j < mats.Length; j++)
{
Material mat = mats[j];
// clear to default
lightMap.SetTexture("_MainTex", EditorGUIUtility.whiteTexture);
lightMap.SetColor("_Color", Color.white);
// uvs
lightMap.SetVector("_LightMapUV", renderer.lightmapScaleOffset);
Shader shader = mat.shader;
int props = ShaderUtil.GetPropertyCount(shader);
for (int k = 0; k < props; k++)
{
string name = ShaderUtil.GetPropertyName(shader, k);
ShaderUtil.ShaderPropertyType propType = ShaderUtil.GetPropertyType(shader, k);
if (propType == ShaderUtil.ShaderPropertyType.TexEnv)
{
if (JanusGlobals.SemanticsMainTex.Contains(name.ToLower()))
{
// main texture texture
Texture matTex = mat.GetTexture(name);
if (matTex)
{
lightMap.SetTexture("_MainTex", matTex);
}
}
}
else if (propType == ShaderUtil.ShaderPropertyType.Color)
{
if (JanusGlobals.SemanticsColor.Contains(name.ToLower()))
{
lightMap.SetColor("_Color", mat.GetColor(name));
}
}
}
lightMap.SetPass(0);
Graphics.DrawMeshNow(mesh, world, j);
}
// This is the only way to access data from a RenderTexture
Texture2D tex = new Texture2D(renderTexture.width, renderTexture.height, TextureFormat.ARGB32, false, false);
tex.ReadPixels(new Rect(0, 0, tex.width, tex.height), 0, 0);
string imgId = rObj.id + "_Baked";
tex.name = imgId;
Graphics.SetRenderTarget(null);
RenderTexture.ReleaseTemporary(renderTexture);
lmap++;
// save the texture file
ExportTexture(tex, format, room.GetTexture(rObj.image_id), false);
UObject.DestroyImmediate(tex);
}
}
UObject.DestroyImmediate(lightMap);
}
private void ProcessLightmapsPacked()
{
ExportTextureFormat format = room.TextureFormat;
if (room.ExportOnlyHtml)
{
foreach (var lightPair in lightmapped)
{
int id = lightPair.Key;
string imgId = "Lightmap" + id;
UpdateTextureFormat(format, room.GetTexture(imgId), "");
}
return;
}
string lightMapsFolder = UnityUtil.GetLightmapsFolder();
Shader exposureShader = Shader.Find("Hidden/ExposureShader");
JanusUtil.AssertShader(exposureShader);
Material exposureMat = new Material(exposureShader);
exposureMat.SetPass(0);
exposureMat.SetFloat("_RelFStops", room.LightmapRelFStops);
exposureMat.SetFloat("_IsLinear", PlayerSettings.colorSpace == ColorSpace.Linear ? 1 : 0);
foreach (var lightPair in lightmapped)
{
int id = lightPair.Key;
AssetImage lmapImage = room.TryGetTexture("Lightmap" + id);
if (lmapImage == null)
{
continue;
}
// get the path to the lightmap file
string lightMapFile = Path.Combine(lightMapsFolder, "Lightmap-" + id + "_comp_light.exr");
Texture2D texture = AssetDatabase.LoadAssetAtPath <Texture2D>(lightMapFile);
if (texture == null)
{
continue;
}
exposureMat.SetTexture("_InputTex", texture);
// We need to access unity_Lightmap_HDR to decode the lightmap,
// but we can't, so we have to render everything to a custom RenderTexture!
Texture2D decTex = new Texture2D(texture.width, texture.height);
decTex.name = "Lightmap" + id;
//texturesExported.Add(decTex);
RenderTexture renderTexture = RenderTexture.GetTemporary(texture.width, texture.height);
Graphics.SetRenderTarget(renderTexture);
GL.Clear(true, true, new Color(0, 0, 0, 0)); // clear to transparent
exposureMat.SetPass(0);
Graphics.DrawMeshNow(JanusResources.PlaneMesh, Matrix4x4.identity);
decTex.ReadPixels(new Rect(0, 0, decTex.width, decTex.height), 0, 0);
Graphics.SetRenderTarget(null);
RenderTexture.ReleaseTemporary(renderTexture);
// save the lightmap file
ExportTexture(decTex, format, lmapImage, false);
UObject.DestroyImmediate(decTex);
}
UObject.DestroyImmediate(exposureMat);
}
