private void OnGUI()
{
modle = EditorGUILayout.Toggle("CubeMap", modle);
if (modle)
{
input_cubemap = EditorGUILayout.ObjectField("Input Cubemap", input_cubemap, typeof(Cubemap), true) as Cubemap;
isCopyNew = EditorGUILayout.Toggle("从环境球获取", isCopyNew);
if (input_cubemap != null)
{
EditorGUILayout.Space();
if (GUILayout.Button("CPU Uniform 9 Coefficients"))
{
Cubemap cm = input_cubemap;
if (isCopyNew)
{
test = cm = CopyFromEnvMap();
}
ModifyTextureReadable();
coefficients = new Vector4[9];
if (SphericalHarmonics.CPU_Project_Uniform_9Coeff(cm, coefficients))
{
setSH9Global();
}
if (isCopyNew)
{
GameObject.DestroyImmediate(cm, true);
}
}
EditorGUILayout.Space();
if (GUILayout.Button("CPU Monte Carlo 9 Coefficients"))
{
Cubemap cm = input_cubemap;
if (isCopyNew)
{
cm = CopyFromEnvMap();
}
ModifyTextureReadable();
coefficients = new Vector4[9];
if (SphericalHarmonics.CPU_Project_MonteCarlo_9Coeff(cm, coefficients, 4096))
{
setSH9Global();
}
if (isCopyNew)
{
GameObject.DestroyImmediate(cm, true);
}
}
EditorGUILayout.Space();
if (GUILayout.Button("GPU Uniform 9 Coefficients"))
{
Cubemap cm = input_cubemap;
if (isCopyNew)
{
input_cubemap = cm = CopyFromEnvMap();
}
ModifyTextureReadable();
coefficients = new Vector4[9];
if (SphericalHarmonics.GPU_Project_Uniform_9Coeff(cm, coefficients))
{
setSH9Global();
}
if (isCopyNew)
{
GameObject.DestroyImmediate(cm, true);
}
}
EditorGUILayout.Space();
if (GUILayout.Button("GPU Monte Carlo 9 Coefficients"))
{
Cubemap cm = input_cubemap;
if (isCopyNew)
{
cm = CopyFromEnvMap();
}
ModifyTextureReadable();
coefficients = new Vector4[9];
if (SphericalHarmonics.GPU_Project_MonteCarlo_9Coeff(cm, coefficients))
{
setSH9Global();
}
if (isCopyNew)
{
GameObject.DestroyImmediate(cm, true);
}
}
EditorGUILayout.Space();
}
}
else
{
env_map = EditorGUILayout.ObjectField("360环境球", env_map, typeof(Texture2D), true) as Texture2D;
if (env_map)
{
sun = EditorGUILayout.Toggle("太阳", sun);
}
enableLight = EditorGUILayout.Toggle("灯光", enableLight);
if (enableLight)
{
GUILayout.BeginHorizontal();
if (GUILayout.Button("+"))
{
lights.Add(null);
}
if (GUILayout.Button("-"))
{
if (lights.Count > 0)
{
lights.RemoveAt(lights.Count - 1);
}
}
GUILayout.EndHorizontal();
for (int i = 0; i < lights.Count; i++)
{
lights[i] = EditorGUILayout.ObjectField("360环境球", lights[i], typeof(Light), true) as Light;
}
}
bool hasLight = false;
for (int i = 0; i < lights.Count; i++)
{
if (lights [i] != null)
{
hasLight = true;
break;
}
}
//lights
if (hasLight || env_map != null)
{
EditorGUILayout.Space();
if (GUILayout.Button("CPU Uniform 9 Coefficients"))
{
ModifyTextureReadable(env_map);
List <Light> ls = new List <Light> ();
foreach (Light l in lights)
{
if (l != null)
{
ls.Add(l);
}
}
coefficients = new Vector4[9];
if (SphericalHarmonics.CPU_Project_360HJQ(env_map, coefficients, 4096, sun, ls.ToArray()))
{
setSH9Global();
}
}
}
}
if (coefficients != null && coefficients.Length == 9)
{
if (GUILayout.Button("保存"))
{
SH9Data data = SH9Data.CreateInstance <SH9Data> ();
data.coefficients = coefficients;
string path = EditorUtility.SaveFilePanelInProject("Save SH9 Data", "ibl.asset", "asset",
"Please enter a file name to save the texture to");
if (path.Length != 0)
{
if (System.IO.File.Exists(path))
{
/*if (EditorUtility.DisplayDialog("目标已存在", "替换", "取消"))
* {
*
* }*/
data.test = new Vector4(1, 0, 0, 1);
data = AssetDatabase.LoadAssetAtPath <SH9Data> (path);
data.coefficients = coefficients;
AssetDatabase.SaveAssets();
}
else
{
data.test = Vector4.one;
AssetDatabase.CreateAsset(data, path);
AssetDatabase.ImportAsset(path);
}
}
}
EditorGUILayout.Space();
for (int i = 0; i < 9; ++i)
{
EditorGUILayout.LabelField("c_" + i.ToString() + ": " + coefficients[i].ToString("f4"));
}
}
EditorGUILayout.Space();
if (tmp != null)
{
GUILayout.Label(tmp);
}
}
private void OnGUI()
{
EditorGUILayout.PropertyField(sp_input_cubemap, new GUIContent("Input Cubemap"));
so.ApplyModifiedProperties();
if (input_cubemap != null)
{
EditorGUILayout.Space();
if (GUILayout.Button("CPU Uniform 9 Coefficients"))
{
coefficients = new Vector4[9];
if (SphericalHarmonics.CPU_Project_Uniform_9Coeff(input_cubemap, coefficients))
{
for (int i = 0; i < 9; ++i)
{
view_mat.SetVector("c" + i.ToString(), coefficients[i]);
view_mat.SetTexture("input", input_cubemap);
}
SceneView.RepaintAll();
}
}
EditorGUILayout.Space();
if (GUILayout.Button("CPU Monte Carlo 9 Coefficients"))
{
coefficients = new Vector4[9];
if (SphericalHarmonics.CPU_Project_MonteCarlo_9Coeff(input_cubemap, coefficients, 4096))
{
for (int i = 0; i < 9; ++i)
{
view_mat.SetVector("c" + i.ToString(), coefficients[i]);
view_mat.SetTexture("input", input_cubemap);
}
SceneView.RepaintAll();
}
}
EditorGUILayout.Space();
if (GUILayout.Button("GPU Uniform 9 Coefficients"))
{
coefficients = new Vector4[9];
if (SphericalHarmonics.GPU_Project_Uniform_9Coeff(input_cubemap, coefficients))
{
for (int i = 0; i < 9; ++i)
{
view_mat.SetVector("c" + i.ToString(), coefficients[i]);
view_mat.SetTexture("input", input_cubemap);
}
SceneView.RepaintAll();
}
}
EditorGUILayout.Space();
if (GUILayout.Button("GPU Monte Carlo 9 Coefficients"))
{
coefficients = new Vector4[9];
if (SphericalHarmonics.GPU_Project_MonteCarlo_9Coeff(input_cubemap, coefficients))
{
for (int i = 0; i < 9; ++i)
{
view_mat.SetVector("c" + i.ToString(), coefficients[i]);
view_mat.SetTexture("input", input_cubemap);
}
}
}
EditorGUILayout.Space();
if (GUILayout.Button("Show"))
{
RenderSettings.skybox = view_mat;
}
view_mode = EditorGUILayout.Slider(view_mode, 0, 1);
view_mat.SetFloat("_Mode", view_mode);
EditorGUILayout.Space();
//print the 9 coefficients
if (coefficients != null)
{
for (int i = 0; i < 9; ++i)
{
EditorGUILayout.LabelField("c_" + i.ToString() + ": " + coefficients[i].ToString("f4"));
}
}
}
EditorGUILayout.Space();
if (tmp != null)
{
GUILayout.Label(tmp);
}
}
private void OnGUI()
{
EditorGUILayout.PropertyField(sp_to_compute);
so.ApplyModifiedProperties();
EditorGUILayout.Space();
if (to_compute != null && GUILayout.Button("Compute Thickness"))
{
//create the folder with saved mesh assets
if (!AssetDatabase.IsValidFolder("Assets/TranslucentMeshes"))
{
AssetDatabase.CreateFolder("Assets", "TranslucentMeshes");
}
GameObject tmp_camera_object = new GameObject("tmp_camera");
Camera tmp_camera = tmp_camera_object.AddComponent <Camera>();
tmp_camera.clearFlags = CameraClearFlags.Color;
tmp_camera.backgroundColor = Color.black;
tmp_camera.nearClipPlane = 0.01f;
tmp_camera.farClipPlane = 300;
GameObject clone = Instantiate(to_compute.gameObject);
Mesh mesh = Instantiate(to_compute.sharedMesh);
Vector3[] vertices = mesh.vertices;
Vector3[] normals = mesh.normals;
Vector2[] uv2 = new Vector2[mesh.vertexCount];
Vector2[] uv3 = new Vector2[mesh.vertexCount];
Vector2[] uv4 = new Vector2[mesh.vertexCount];
Color[] colors = new Color[mesh.vertexCount];
//temporary storage for the sh coefficients
Vector4[] coefficients = new Vector4[9];
//64x64 cubemap should be enough
Cubemap thickness_cubemap = new Cubemap(128, TextureFormat.RGBA32, false); //TODO: usare formato float
for (int v = 0; v < mesh.vertexCount; ++v)
{
//vertices in the mesh are in local space, transform to world coordinate
Vector3 vertex_world_position = vertices[v]; // clone.transform.localToWorldMatrix.MultiplyPoint(vertices[v]); //TODO: al posto di lavorare in world space, lavorare in local
Vector3 world_normal = normals[v]; // clone.transform.localToWorldMatrix.MultiplyVector(normals[v]);
tmp_camera.transform.position = vertex_world_position - world_normal * 0.011f;
tmp_camera.RenderToCubemap(thickness_cubemap);
//project the cubemap to the spherical harmonic basis
SphericalHarmonics.GPU_Project_Uniform_9Coeff(thickness_cubemap, coefficients);
//put 4 coefficients in the vertex color, 2 in the uv2 and 2 in the uv3 and 1 in uv4
colors[v] = new Color(coefficients[0].x, coefficients[1].x, coefficients[2].x, coefficients[3].x);
uv2[v] = new Vector2(coefficients[4].x, coefficients[5].x);
uv3[v] = new Vector2(coefficients[6].x, coefficients[7].x);
uv4[v] = new Vector2(coefficients[8].x, 0);
for (int i = 0; i < 9; ++i)
{
coefficients[i] = Vector4.zero;
}
}
mesh.colors = colors;
mesh.uv2 = uv2;
mesh.uv3 = uv3;
mesh.uv4 = uv4;
mesh.UploadMeshData(true);
//save the mesh
AssetDatabase.CreateAsset(mesh, "Assets/TranslucentMeshes/" + to_compute.name + ".asset");
clone.GetComponent <MeshFilter>().sharedMesh = mesh;
Object.DestroyImmediate(tmp_camera_object);
to_compute.gameObject.SetActive(false);
}
}
public void Compute()
{
Material old_skybox = RenderSettings.skybox;
Material cosine_skybox = new Material(Shader.Find("SH/CosineSkybox"));
RenderSettings.skybox = cosine_skybox;
//create the folder with saved mesh assets
if (!AssetDatabase.IsValidFolder("Assets/ComputedMeshes"))
{
AssetDatabase.CreateFolder("Assets", "ComputedMeshes");
}
//don't modify the original objects but make a copy
GameObject parent = new GameObject("computed");
parent.SetActive(false);
GameObject tmp_camera_object = new GameObject("tmp_camera");
Camera tmp_camera = tmp_camera_object.AddComponent <Camera>();
tmp_camera.clearFlags = CameraClearFlags.Skybox;
tmp_camera.nearClipPlane = 0.01f;
tmp_camera.farClipPlane = 300;
//temporary storage for the sh coefficients
Vector4[] coefficients = new Vector4[9];
//64x64 cubemap should be enough
Cubemap visibility_cubemap = new Cubemap(64, TextureFormat.RGBA32, false);
//cycle the children renderers
MeshRenderer[] to_compute = gameObject.GetComponentsInChildren <MeshRenderer>();
//get the total number of vertex to compute
int total_vertex = 0;
int completed_vertex = 0;
foreach (MeshRenderer mr in to_compute)
{
if (mr.gameObject.isStatic)
{
total_vertex = mr.gameObject.GetComponent <MeshFilter>().sharedMesh.vertexCount;
}
}
//shader for rendering the visibility (black = occluded)
Shader black_shader = Shader.Find("SH/BlackShader");
foreach (MeshRenderer mr in to_compute)
{
if (mr.gameObject.isStatic) //compute only static objects
{
//clone the original
GameObject clone = Instantiate(mr.gameObject);
clone.name = mr.gameObject.name;
clone.transform.SetParent(parent.transform);
Mesh mesh = Instantiate(mr.gameObject.GetComponent <MeshFilter>().sharedMesh);
Vector3[] vertices = mesh.vertices;
Vector3[] normals = mesh.normals;
Vector2[] uv2 = new Vector2[mesh.vertexCount];
Vector2[] uv3 = new Vector2[mesh.vertexCount];
Vector2[] uv4 = new Vector2[mesh.vertexCount];
Color[] colors = new Color[mesh.vertexCount];
for (int v = 0; v < mesh.vertexCount; ++v)
{
//vertices in the mesh are in local space, transform to world coordinate
Vector3 vertex_world_position = clone.transform.localToWorldMatrix.MultiplyPoint(vertices[v]);
Vector3 world_normal = clone.transform.localToWorldMatrix.MultiplyVector(normals[v]);
tmp_camera.transform.position = vertex_world_position + world_normal * 0.011f; //offset the camera a little in the normal direction
cosine_skybox.SetVector("N", world_normal);
tmp_camera.SetReplacementShader(black_shader, "");
tmp_camera.RenderToCubemap(visibility_cubemap);
tmp_camera.ResetReplacementShader();
//project the cubemap to the spherical harmonic basis
SphericalHarmonics.GPU_Project_Uniform_9Coeff(visibility_cubemap, coefficients);
//put 4 coefficients in the vertex color, 2 in the uv2 and 2 in the uv3 and 1 in uv4
colors[v] = new Color(coefficients[0].x, coefficients[1].x, coefficients[2].x, coefficients[3].x);
uv2[v] = new Vector2(coefficients[4].x, coefficients[5].x);
uv3[v] = new Vector2(coefficients[6].x, coefficients[7].x);
uv4[v] = new Vector2(coefficients[8].x, 0);
for (int i = 0; i < 9; ++i)
{
coefficients[i] = Vector4.zero;
}
completed_vertex++;
}
mesh.colors = colors;
mesh.uv2 = uv2;
mesh.uv3 = uv3;
mesh.uv4 = uv4;
mesh.UploadMeshData(true);
//save the mesh
AssetDatabase.CreateAsset(mesh, "Assets/ComputedMeshes/" + mr.name + ".asset");
clone.GetComponent <MeshFilter>().sharedMesh = mesh;
Material mat = new Material(Shader.Find("SH/SH_Shader"));
clone.GetComponent <MeshRenderer>().material = mat;
}
}
Object.DestroyImmediate(tmp_camera_object);
gameObject.SetActive(false);
parent.SetActive(true);
RenderSettings.skybox = old_skybox;
}