private void Initialize()
{
_meshInstance = GetNode <MeshInstance>("Mesh");
PlaneMesh initialMesh = (PlaneMesh)_meshInstance.Mesh;
_resX = initialMesh.SubdivideWidth + 1;
_resZ = initialMesh.SubdivideDepth + 1;
_noise = new OpenSimplexNoise();
UpdateNoiseSettings();
_surfaceTool = new SurfaceTool();
_meshDataTool = new MeshDataTool();
Control HUD = GetNode <Control>("../HUD");
HUD.Connect("UpdateSeed", this, nameof(_On_Seed_Updated));
HUD.Connect("UpdateOctaves", this, nameof(_On_Octaves_Updated));
HUD.Connect("UpdateAmplitude", this, nameof(_On_Amplitude_Updated));
HUD.Connect("UpdatePeriod", this, nameof(_On_Period_Updated));
HUD.Connect("UpdateLacunarity", this, nameof(_On_Lacunarity_Updated));
HUD.Connect("UpdatePersistence", this, nameof(_On_Persistence_Updated));
_initialized = true;
}
/**
* Create surface for overlay
*/
public ArrayMesh createSurfaceOverlay(ArrayMesh mesh, string slotName, string urlPath, string overlayName, List <UMAReciepeBindPose> origBindPoses)
{
var file = ResourceLoader.Load <PackedScene>(urlPath);
var instance = file.Instance();
var meshes = new List <MeshInstance>();
if (instance is Spatial)
{
foreach (var child in (instance as Spatial).GetChildren())
{
if (child is MeshInstance)
{
meshes.Add(child as MeshInstance);
}
}
}
if (instance is MeshInstance)
{
meshes.Add(instance as MeshInstance);
}
var mdt = new MeshDataTool();
var idx = mesh.SurfaceFindByName(slotName);
mdt.CreateFromSurface(mesh, idx);
int totalSurfaces = 0;
foreach (var mi in meshes)
{
var newMesh = (mi as MeshInstance).Mesh;
var newSkin = (mi as MeshInstance).Skin;
for (int surface = 0; surface < newMesh.GetSurfaceCount(); surface++)
{
mesh.AddSurfaceFromArrays(Mesh.PrimitiveType.Triangles, createSurfaceByBones(newMesh as ArrayMesh, surface, newSkin, origBindPoses));
var lastId = mesh.GetSurfaceCount() - 1;
var mat = newMesh.SurfaceGetMaterial(surface);
mat.ResourceLocalToScene = true;
if (mat is SpatialMaterial)
{
(mat as SpatialMaterial).ParamsGrow = true;
(mat as SpatialMaterial).ParamsGrowAmount = 0.005f;
}
mesh.SurfaceSetMaterial(lastId, mat);
mesh.SurfaceSetName(lastId, (totalSurfaces == 0) ? overlayName : overlayName + "/" + totalSurfaces);
totalSurfaces++;
}
changes++;
}
return(mesh);
}
public static ArrayMesh AddNoiseToMesh(PlaneMesh plane, float[,] noiseMap, int chunkSize, int heightMultiplier, Curve heightCurve)
{
SurfaceTool st = new SurfaceTool();
st.CreateFrom(plane, 0);
ArrayMesh mesh = new ArrayMesh();
MeshDataTool dt = new MeshDataTool();
mesh = st.Commit();
dt.CreateFromSurface(mesh, 0);
for (int y = 0; y < chunkSize; y++)
{
for (int x = 0; x < chunkSize; x++)
{
int z = y;
int vertexIndex = z * chunkSize + x;
Vector3 vertex = dt.GetVertex(vertexIndex);
vertex.y = heightCurve.Interpolate(noiseMap[chunkSize - x - 1, chunkSize - z - 1]) * heightMultiplier;
dt.SetVertex(vertexIndex, vertex);
}
}
for (int surface = 0; surface < mesh.GetSurfaceCount(); surface++)
{
mesh.SurfaceRemove(surface);
}
dt.CommitToSurface(mesh);
st.Begin(Mesh.PrimitiveType.Triangles);
st.CreateFrom(mesh, 0);
st.Index();
st.GenerateNormals();
return(st.Commit());
}
/// <summary>
/// 4th attempt: set color by most linked, not by color
/// </summary>
/// <param name="mdt"></param>
public static void _SetVertexColorToBarycentric(MeshDataTool mdt)
{
//store info about our verticies into an array
var vertStorage = new VertexInfo[mdt.GetVertexCount()];
for (var vertIdx = 0; vertIdx < vertStorage.Length; vertIdx++)
{
vertStorage[vertIdx] = new VertexInfo(vertIdx, mdt, vertStorage);
//set vert color to alphaBlack
mdt.SetVertexColor(vertIdx, Colors.Transparent);
}
//sort verticies by degree (number of edges). defaults to highest first
var sortedVerts = new List <VertexInfo>(vertStorage);
sortedVerts.Sort();
//color channels used for verticies. 3 is ideal, but aprox 10% of verts wont be colored.
var colorChoices = new Color[] {
//encode 5 channels as 20% red each.
new Color(0.2f, 0, 0, 0),
new Color(0.4f, 0, 0, 0),
new Color(0.6f, 0, 0, 0),
new Color(0.8f, 0, 0, 0),
new Color(1f, 0, 0, 0)
};
////////////// various algorithm choices. best is _WELSH_POWELL_ADJUSTED
//_GREEDY_FACE(sortedVerts, colorChoices, mdt);
//_GREEDY_BASIC(sortedVerts, colorChoices, mdt);
//_CYBERREALITY(sortedVerts, colorChoices, mdt);
//_CYBERREALITY_EDIT(sortedVerts, colorChoices, mdt);
_WELSH_POWELL_ADJUSTED(sortedVerts, colorChoices, mdt);
}
public VertexInfo(int idx, MeshDataTool mdt, VertexInfo[] storage)
{
this.storage = storage;
this.vertIdx = idx;
this.mdt = mdt;
edges = mdt.GetVertexEdges(idx);
faces = mdt.GetVertexFaces(idx);
this.pos = mdt.GetVertex(idx);
adjacentVerticies = new int[edges.Length];
for (var i = 0; i < edges.Length; i++)
{
var edgeIdx = edges[i];
var edgeVert0 = mdt.GetEdgeVertex(edgeIdx, 0);
var edgeVert1 = mdt.GetEdgeVertex(edgeIdx, 1);
var adjacent = edgeVert0 != idx ? edgeVert0 : edgeVert1;
adjacentVerticies[i] = adjacent;
}
//better heuristic for sorting (vert with most adjcent faces)
foreach (var faceIdx in faces)
{
//adjadj++;
for (var i = 0; i < 3; i++)
{
var faceVertIdx = mdt.GetFaceVertex(faceIdx, i);
adjadj += mdt.GetVertexFaces(faceVertIdx).Length;
}
}
}
public override UnifiedObject Mirror()
{
StaticObject clone = (StaticObject)this.Clone();
ArrayMesh originalMesh = (ArrayMesh)this.m_meshInstance.Mesh;
int originalSurfaceCount = originalMesh.GetSurfaceCount();
ArrayMesh newMesh = new ArrayMesh();
for (int i = 0; i < originalSurfaceCount; i++)
{
MeshDataTool mdt = new MeshDataTool();
mdt.CreateFromSurface(originalMesh, i);
for (int j = 0; j < mdt.GetVertexCount(); j++)
{
Vector3 vert = mdt.GetVertex(j);
vert.x *= -1;
mdt.SetVertex(j, vert);
}
mdt.CommitToSurface(newMesh);
}
clone.ObjectMeshInstance.Mesh = newMesh;
return(clone);
}
public void Generate()
{
planeMesh = new PlaneMesh();
planeMesh.Size = new Vector2(chunkSize, chunkSize);
planeMesh.SubdivideDepth = Mathf.RoundToInt(chunkSize * 0.5f);
planeMesh.SubdivideWidth = Mathf.RoundToInt(chunkSize * 0.5f);
surfaceTool = new SurfaceTool();
meshDataTool = new MeshDataTool();
surfaceTool.CreateFrom(planeMesh, 0);
arrayPlane = surfaceTool.Commit();
meshDataTool.CreateFromSurface(arrayPlane, 0);
for (int i = 0; i < meshDataTool.GetVertexCount(); i++)
{
Vector3 vertex = meshDataTool.GetVertex(i);
vertex.y = noise.GetNoise3d(
vertex.x + position.x,
vertex.y,
vertex.z + position.z) * References.steepness;
meshDataTool.SetVertex(i, vertex);
avgHeight += vertex.y;
}
avgHeight /= meshDataTool.GetVertexCount();
for (int i = 0; i < arrayPlane.GetSurfaceCount(); i++)
{
arrayPlane.SurfaceRemove(i);
}
for (int i = 0; i < meshDataTool.GetFaceCount(); i++)
{
Vector3 A = meshDataTool.GetVertex(meshDataTool.GetFaceVertex(i, 0));
Vector3 B = meshDataTool.GetVertex(meshDataTool.GetFaceVertex(i, 1));
Vector3 C = meshDataTool.GetVertex(meshDataTool.GetFaceVertex(i, 2));
Vector3 face = (A + B + C) / 3 + position;
Vector3 normal = meshDataTool.GetFaceNormal(i);
slope += Maths.Angle(Vector3.Up, normal);
}
slope /= meshDataTool.GetFaceCount();
meshDataTool.CommitToSurface(arrayPlane);
surfaceTool.Begin(Mesh.PrimitiveType.Triangles);
surfaceTool.CreateFrom(arrayPlane, 0);
surfaceTool.GenerateNormals();
meshInstance = new MeshInstance();
meshInstance.Mesh = surfaceTool.Commit();
meshInstance.SetSurfaceMaterial(0, (Material)ResourceLoader.Load("res://Assets/Shader/Terrain.material"));
meshInstance.CreateTrimeshCollision();
meshInstance.CastShadow = GeometryInstance.ShadowCastingSetting.On;
AddChild(meshInstance);
}
private void Deform()
{
var sn = new OpenSimplexNoise();
sn.Period = Period;
sn.Octaves = Octaves;
sn.Seed = Seed;
sn.Persistence = Persistence;
sn.Lacunarity = Lacunarity;
var mesh = sphere.Mesh;
var st = new SurfaceTool();
st.CreateFrom(mesh, 0);
var array = st.Commit();
var dt = new MeshDataTool();
dt.CreateFromSurface(array, 0);
var count = dt.GetVertexCount();
var origin = Vector3.Zero;
for (int i = 0; i < count; i++)
{
var vertex = dt.GetVertex(i);
var n = -vertex.DirectionTo(origin);
var noise = sn.GetNoise3d(vertex.x, vertex.y, vertex.z);
noise = Mathf.Clamp(noise, -1f, 1f);
vertex += n * noise * MoveFactor;
dt.SetVertex(i, vertex);
}
var surfCount = array.GetSurfaceCount();
for (int i = 0; i < surfCount; i++)
{
array.SurfaceRemove(i);
}
dt.CommitToSurface(array);
st.Begin(Mesh.PrimitiveType.Triangles);
st.CreateFrom(array, 0);
st.GenerateNormals();
sphere.Mesh = st.Commit();
UpdateMaterial();
}
/// <summary>
/// 3rd attempt: after researching a bit I realized this is a "graph coloring" problem: https://en.wikipedia.org/wiki/Graph_coloring
/// nice overview of some here: https://github.com/Ajaypal91/Graph_Coloring_Algorithms_Implementation
/// here we implement welsh-powell algorithm: https://www.youtube.com/watch?v=CQIW2mLfG04
/// </summary>
/// <param name="mdt"></param>
private static void _SetVertexColorToBarycentric_WP(MeshDataTool mdt)
{
//store info about our verticies into an array
var vertStorage = new VertexInfo[mdt.GetVertexCount()];
for (var vertIdx = 0; vertIdx < vertStorage.Length; vertIdx++)
{
vertStorage[vertIdx] = new VertexInfo(vertIdx, mdt, vertStorage);
//set vert color to black
mdt.SetVertexColor(vertIdx, Colors.Transparent);
}
//sort verticies by degree (number of edges). defaults to highest first
var sortedVerts = new List <VertexInfo>(vertStorage);
sortedVerts.Sort();
//verts.CopyTo(sortedVerts,0);
//Array.Sort(sortedVerts);
var colorChoices = new Color[] { Colors.Red, Colors.Green, Colors.Blue };
foreach (var color in colorChoices)
{
//enumerate in reverse so we inspect our verticies with highest degree first (most edges)
//and also lets us remove from the list directly
for (int i = sortedVerts.Count - 1; i >= 0; i--)
{
var vertInfo = sortedVerts[i];
if (vertInfo.TrySetAvailableColor(color))
{
sortedVerts.RemoveAt(i);
}
}
}
//any remaining verts are uncolored! bad.
GD.Print($"Done building mesh. Verticies uncolored count={sortedVerts.Count} / {mdt.GetVertexCount()}");
//for any remaining verticies color alpha
var alphaBlack = new Color(0, 0, 0, 0);
for (int i = sortedVerts.Count - 1; i >= 0; i--)
{
var vertInfo = sortedVerts[i];
mdt.SetVertexColor(vertInfo.vertIdx, alphaBlack);
}
}
public void RebuildOutputMesh()
{
GD.Print("REBUILDING COLOR MESH");
var inputNode = FindNode("Input") as MeshInstance;
var outputNode = FindNode("Output") as MeshInstance;
var mesh = inputNode.Mesh as ArrayMesh;
if (mesh == null)
{
GD.Print("no mesh found on input node. aborting");
return;
}
var surfaceCount = mesh.GetSurfaceCount();
var surfaceQueue = new Queue <MeshDataTool>();
for (var i = 0; i < surfaceCount; i++)
{
var mdt = new MeshDataTool();
mdt.CreateFromSurface(mesh, 0);
BarycentricProcessor._SetVertexColorToBarycentric(mdt);
mesh.SurfaceRemove(0);
surfaceQueue.Enqueue(mdt);
}
//replace our mesh with modified version
while (surfaceQueue.Count > 0)
{
var mdt = surfaceQueue.Dequeue();
mdt.CommitToSurface(mesh);
mdt.Dispose();
}
outputNode.Mesh = mesh;
}
private static void _SetVertexColorToBarycentric_old(MeshDataTool mdt)
{
//try looping verticies
{
// var marked = new System.Collections.Generic.Dictionary<string, Color>();
// var markFailCount = 0;
// var markIndex = 0;
// float vertexCount = mdt.GetVertexCount();
// for (var i = 0; i < vertexCount; i++)
// {
// var vertex = mdt.GetVertex(i);
// var vertId = vertex.ToString("F2");
// // if (marked.TryGetValue(vertId, out var markedColor))
// // {
// // GD.Print($"MARK FAIL! {vertId}");
// // mdt.SetVertexColor(i, markedColor);
// // markFailCount++;
// // continue;
// // }
// var channel = markIndex % 3;
// var color = new Color(0, 0, 0, 1);
// switch (channel)
// {
// case 0:
// color.r = 1;
// break;
// case 1:
// color.g = 1;
// break;
// case 2:
// color.b = 1;
// break;
// case 3:
// color.r = 1;
// color.g = 1;
// break;
// case 4:
// color.r = 1;
// color.b = 1;
// break;
// case 5:
// color.b = 1;
// color.g = 1;
// break;
// case 6:
// color.r = 1;
// color.g = 1;
// color.b = 1;
// break;
// case 7:
// color.r = 0;
// color.g = 0;
// color.b = 0;
// break;
// }
// color = new Color(0, 0, 0, 1);
// //marked.Add(vertId, color);
// markIndex++;
// mdt.SetVertexColor(i, color);
// }
}
//private helper, gets the name of a color (assumes R,G,B, or Black)
string _getColorName(Color color)
{
switch (color)
{
case Color c when c == Colors.Red:
return("Red");
break;
case Color c when c == Colors.Green:
return("Green");
break;
case Color c when c == Colors.Blue:
return("Blue");
break;
case Color c when c == Colors.Black:
return("Black");
break;
default:
throw new Exception($"getColorName, unknown color={color}. This helper function supports only Red, Green,Blue, or Black.");
}
}
{
}
//loop all faces, assigning colors to each of it's 3 verticies.
{
//var faceCount = mdt.GetFaceCount();
//var faceColorChoices = new List<string>();
//var vertClusterColors = new Dictionary<string, string>(); //key = vertex.toString(), value = color name
////preprocess verticies of the mesh.
////reset vertex color to black. we do this in case the model already uses R,G, or B for vertex color, which can mess up our color assigning algorithm below (we check the color of the vertex to see if it's been set)
//var vertexCount = mdt.GetVertexCount();
//for (var vertIdx = 0; vertIdx < vertexCount; vertIdx++)
//{
// mdt.SetVertexColor(vertIdx, Colors.Black);
//}
////first loop through all faces, assign red to the vertex with the most linked faces, black to others.
////this is to reduce chance of the green or blue colors "running out" due to other verticies being shared by faces.
//for (var faceIdx = 0; faceIdx < faceCount; faceIdx++)
//{
// //break;
// //the colors this faces' verticies will use.
// faceColorChoices.Clear();
// faceColorChoices.Add("Green");
// faceColorChoices.Add("Blue");
// faceColorChoices.Add("Red");
// //sort verts by number of linked faces, and remove any used colors
// var mostFacedVertFaces = 0;
// var mostFacedVertIdx = -1;
// //var sortedButUncoloredVerts = new SortedS<int, int>(); //key = faceCount, value = vertIdx
// // { int faces; int vertIdx } tp;// = { faces = 1, vertIdx = -1 };
// for (var faceVert = 0; faceVert < 3; faceVert++)
// {
// var vertIdx = mdt.GetFaceVertex(faceIdx, faceVert);
// var faces = mdt.GetVertexFaces(vertIdx);
// var vertColor = mdt.GetVertexColor(vertIdx);
// var vertColorName = _getColorName(vertColor);
// switch (vertColorName)
// {
// case "Black":
// //no color assigned to the vertex
// if (faces.Length > mostFacedVertFaces)
// {
// mostFacedVertFaces = faces.Length;
// mostFacedVertIdx = vertIdx;
// }
// //sortedButUncoloredVerts.Add(faces.Length, vertIdx); //only add the vert if it's uncolored
// break;
// default:
// //remove the vertex's color from our choices (so the next loop through the faces's verticies wont pick it)
// var result = faceColorChoices.Remove(vertColorName);
// if (!result)
// {
// //color used twice in the vertex! bad
// GD.Print($"failed, vert color used twice!!!!! color={vertColorName} vertIdx={vertIdx}");
// //throw new Exception($"failed to set the faces vertex color properly. color is used twice on the face.");
// }
// break;
// }
// }
// //assign color to our top uncolored vert
// {
// //var vertIdx = sortedButUncoloredVerts.
// if (mostFacedVertFaces > 2)
// {
// var vert = mdt.GetVertex(mostFacedVertIdx);
// var vertName = vert.ToString("F5");
// var colorChoice = faceColorChoices[0];
// faceColorChoices.RemoveAt(0);
// mdt.SetVertexColor(mostFacedVertIdx, Color.ColorN(colorChoice));
// if (!vertClusterColors.ContainsKey(vertName))
// {
// vertClusterColors[vertName] = colorChoice;
// }
// }
// }
// // var mostFacedVertFaces = 0;
// //var mostFacedVert = -1;
// //var isRedAssigned = false;
// //var isBlueAssigned = false;
// //for (var faceVert = 0; faceVert < 3; faceVert++)
// //{
// // var vertIdx = mdt.GetFaceVertex(faceIdx, faceVert);
// // var vertColor = mdt.GetVertexColor(vertIdx);
// // var vertColorName = _getColorName(vertColor);
// // switch (vertColorName)
// // {
// // case "Red":
// // isRedAssigned = true;
// // break;
// // case "Blue":
// // isBlueAssigned = true;
// // break;
// // }
// // var faces = mdt.GetVertexFaces(vertIdx);
// // if (mostFacedVertFaces >= faces.Length)
// // {
// // continue;
// // }
// // mostFacedVertFaces = faces.Length;
// // mostFacedVert = faceVert;
// //}
//}
//for (var faceIdx = 0; faceIdx < faceCount; faceIdx++)
//{
// //the colors this faces' verticies will use.
// faceColorChoices.Clear();
// faceColorChoices.Add("Red");
// faceColorChoices.Add("Green");
// faceColorChoices.Add("Blue");
// //loop through all the faces' verticies and removed any colors already used.
// for (var faceVert = 0; faceVert < 3; faceVert++)
// {
// var vertIdx = mdt.GetFaceVertex(faceIdx, faceVert);
// //var vert = mdt.GetVertex(vertIdx);
// //var vertName = vert.ToString("F5");
// var vertColor = mdt.GetVertexColor(vertIdx);
// var vertColorName = _getColorName(vertColor);
// switch (vertColorName)
// {
// case "Black":
// //no color assigned to the vertex
// break;
// default:
// //remove the vertex's color from our choices (so the next loop through the faces's verticies wont pick it)
// var result = faceColorChoices.Remove(vertColorName);
// if (!result)
// {
// //color used twice in the vertex! bad
// GD.Print($"failed, vert color used twice!!!!! color={vertColorName} vertIdx={vertIdx}");
// //throw new Exception($"failed to set the faces vertex color properly. color is used twice on the face.");
// }
// break;
// }
// }
// //loop through all the faces' verticies and assign color used by the vertCluster
// for (var faceVert = 0; faceVert < 3; faceVert++)
// {
// var vertIdx = mdt.GetFaceVertex(faceIdx, faceVert);
// var vert = mdt.GetVertex(vertIdx);
// var vertName = vert.ToString("F5");
// var vertColor = mdt.GetVertexColor(vertIdx);
// var vertColorName = _getColorName(vertColor);
// switch (vertColorName)
// {
// case "Black":
// //no color assigned to the vertex
// //so check if another another vertex with same location has this color, so use it too.
// if (vertClusterColors.TryGetValue(vertName, out var _tempVertCol))
// {
// if (faceColorChoices.Remove(_tempVertCol))
// {
// mdt.SetVertexColor(vertIdx, Color.ColorN(_tempVertCol));
// }
// }
// break;
// default:
// //vert already colored
// break;
// }
// }
// //this pass, assign all black verticies our remaining colors
// for (var faceVert = 0; faceVert < 3; faceVert++)
// {
// var vertIdx = mdt.GetFaceVertex(faceIdx, faceVert);
// var vert = mdt.GetVertex(vertIdx);
// var vertName = vert.ToString("F5");
// var vertColor = mdt.GetVertexColor(vertIdx);
// var vertColorName = _getColorName(vertColor);
// switch (vertColorName)
// {
// case "Black":
// //assign the vertex a color from our remaining color options for this vertex,
// //but we prefer using a color that other verticies at the same location are already using.
// string colorChoice = null;
// if (vertClusterColors.TryGetValue(vertName, out var _tempVertCol))
// {
// if (faceColorChoices.Remove(_tempVertCol))
// {
// //another vertex with same location has this color, so use it too.
// colorChoice = _tempVertCol;
// }
// else
// {
// //color already in use by another vertex, so do our "normal" color pick
// }
// }
// if (colorChoice is null)
// {
// //
// colorChoice = faceColorChoices[0];
// faceColorChoices.RemoveAt(0);
// }
// mdt.SetVertexColor(vertIdx, Color.ColorN(colorChoice));
// if (!vertClusterColors.ContainsKey(vertName))
// {
// vertClusterColors[vertName] = colorChoice;
// }
// break;
// default:
// //vertex already has a color assigned
// break;
// }
// //switch (faceVert)
// //{
// // case 0:
// // vertColor.r = 1;
// // break;
// // case 1:
// // vertColor.g = 1;
// // break;
// // case 2:
// // vertColor.b = 1;
// // break;
// //}
// //mdt.SetVertexColor(vertIdx, vertColor);
// //if (vertColors.TryGetValue(vertName, out var _tempVertCol))
// //{
// // mdt.getvertexc
// // //if this vertex already has a color assigned to it
// // vertColor = _tempVertCol;
// //}
// //else
// //{
// // switch (priorVertColor)
// // {
// // case Color c when c == Colors.Black || c == Colors.Blue:
// // vertColor = Colors.Red;
// // break;
// // case Color c when c == Colors.Red:
// // vertColor = Colors.Green;
// // break;
// // case Color c when c == Colors.Green:
// // vertColor = Colors.Blue;
// // break;
// // }
// // mdt.SetVertexColor(vert0Idx, Colors.Red);
// // lastVertCol = Colors.Red;
// //}
// ////verify that color isn't already used for a vert of this face.
// //switch (vertColor)
// //{
// // case Color c when c == Colors.Red:
// // if (redUsed)
// // {
// // throw new Exception("red already used");
// // }
// // redUsed = true;
// // break;
// // case Color c when c == Colors.Green:
// // if (greenUsed)
// // {
// // throw new Exception("green already used");
// // }
// // greenUsed = true;
// // break;
// // case Color c when c == Colors.Blue:
// // if (blueUsed)
// // {
// // throw new Exception("blue already used");
// // }
// // blueUsed = true;
// // break;
// //}
// }
//}
}
}
/// <summary>
/// cyberality's technique. needs some optimization for use with big meshes.
/// </summary>
/// <param name="sortedVerts"></param>
/// <param name="colorChoices"></param>
/// <param name="mdt"></param>
private static void _CYBERREALITY(List <VertexInfo> sortedVerts, Color[] colorChoices, MeshDataTool mdt)
{
var done = new Dictionary <int, bool>(); //vertidx/isDone
var bary = new Dictionary <int, Color>(); //vertidx/color
var rand = new Random(0);
var rand_color = new Color((float)rand.NextDouble(), (float)rand.NextDouble(), (float)rand.NextDouble());
var nors = new Dictionary <int, (Vector3 normal, Color color)>(); //normalIdx/normal
for (var j = 0; j < mdt.GetFaceCount(); j++)
{
var fid = mdt.GetFaceVertex(j, 0);
var nor = mdt.GetVertexNormal(fid);
var coords = new List <Color>()
{
Colors.Red, Colors.Green, Colors.Blue
};
foreach (var n in nors.Keys)
{
var dot = nor.Dot(nors[n].normal);
if (dot == 1)
{
rand_color = nors[n].color;
}
else
{
rand_color = new Color((float)rand.NextDouble(), (float)rand.NextDouble(), (float)rand.NextDouble());
}
}
nors[fid] = (normal : nor, color : rand_color);
for (var k = 0; k < 3; k++)
{
var vid = mdt.GetFaceVertex(j, k);
if (bary.ContainsKey(vid))
{
coords.Remove(bary[vid]);
}
}
for (var i = 0; i < 3; i++)
{
var vid = mdt.GetFaceVertex(j, i);
if (!done.ContainsKey(vid) || done[vid] != true)
{
done[vid] = true;
var removal = Colors.Black;
var vert_0 = mdt.GetFaceVertex(j, 0);
var vert_1 = mdt.GetFaceVertex(j, 1);
var vert_2 = mdt.GetFaceVertex(j, 2);
var edge_a = mdt.GetVertex(vert_2).DirectionTo(mdt.GetVertex(vert_0));
var edge_b = mdt.GetVertex(vert_0).DirectionTo(mdt.GetVertex(vert_1));
var edge_c = mdt.GetVertex(vert_1).DirectionTo(mdt.GetVertex(vert_2));
if ((edge_a > edge_b) && (edge_a > edge_c))
{
removal.g = 1;
}
else if ((edge_b > edge_c) && (edge_b > edge_a))
{
removal.r = 1;
}
else
{
removal.b = 1;
}
if (coords.Count > 0)
{
var next = coords[0]; coords.RemoveAt(0);
bary[vid] = next + removal;
}
else
{
var coords2 = new List <Color>()
{
Colors.Red, Colors.Green, Colors.Blue
};
for (var m = 0; m < 3; m++)
{
if (m == i)
{
continue;
}
var vid2 = mdt.GetFaceVertex(j, m);
if (bary.ContainsKey(vid2))
{
coords2.Remove(bary[vid2]);
}
bary[vid] = coords2[0] + removal; //BUG? coords was checked to not have any.... maybe means coords2
coords2.RemoveAt(0);
}
}
mdt.SetVertexColor(vid, bary[vid]);
}
}
}
}
/// <summary>
/// my edited version of Cyberality's technique.
/// faster performance, about as good coverage as "greedy" algo.
/// </summary>
/// <param name="sortedVerts"></param>
/// <param name="_colorChoices"></param>
/// <param name="mdt"></param>
private static void _CYBERREALITY_EDIT(List <VertexInfo> sortedVerts, Color[] _colorChoices, MeshDataTool mdt)
{
var done = new Dictionary <int, bool>(); //vertidx/isDone
var vertColorStorage = new Dictionary <int, Color>(); //vertidx/color
var rand = new Random(0);
var rand_color = new Color((float)rand.NextDouble(), (float)rand.NextDouble(), (float)rand.NextDouble());
var faceVert0MetaInfo = new Dictionary <int, (Vector3 normal, Color color)>(); //normalIdx/normal
for (var faceIdx = 0; faceIdx < mdt.GetFaceCount(); faceIdx++)
{
var faceVert0Idx = mdt.GetFaceVertex(faceIdx, 0);
var faceVert0Norm = mdt.GetVertexNormal(faceVert0Idx);
var colorChoices = new List <Color>()
{
Colors.Red, Colors.Green, Colors.Blue
};
//////JASON CLEANUP: this code block isn't actually used in the algo...
////foreach (var n in faceVert0MetaInfo.Keys)
////{
//// var dot = faceVert0Norm.Dot(faceVert0MetaInfo[n].normal);
//// if (dot == 1)
//// {
//// rand_color = faceVert0MetaInfo[n].color;
//// }
//// else
//// {
//// rand_color = new Color((float)rand.NextDouble(), (float)rand.NextDouble(), (float)rand.NextDouble());
//// }
////}
////faceVert0MetaInfo[faceVert0Idx] = (normal: faceVert0Norm, color: rand_color);
//loop through all verts for the face, and remove colors from our colorChoices if a vert is already using it
for (var faceVertId = 0; faceVertId < 3; faceVertId++)
{
var vertIdx = mdt.GetFaceVertex(faceIdx, faceVertId);
if (vertColorStorage.ContainsKey(vertIdx))
{
colorChoices.Remove(vertColorStorage[vertIdx]);
}
}
for (var faceVertId = 0; faceVertId < 3; faceVertId++)
{
var vertIdx = mdt.GetFaceVertex(faceIdx, faceVertId);
if (!done.ContainsKey(vertIdx) || done[vertIdx] != true)
{
done[vertIdx] = true;
var removal = Colors.Black;
var vert_0 = mdt.GetFaceVertex(faceIdx, 0);
var vert_1 = mdt.GetFaceVertex(faceIdx, 1);
var vert_2 = mdt.GetFaceVertex(faceIdx, 2);
var edge_a = mdt.GetVertex(vert_2).DirectionTo(mdt.GetVertex(vert_0));
var edge_b = mdt.GetVertex(vert_0).DirectionTo(mdt.GetVertex(vert_1));
var edge_c = mdt.GetVertex(vert_1).DirectionTo(mdt.GetVertex(vert_2));
if ((edge_a > edge_b) && (edge_a > edge_c))
{
removal.g = 1;
}
else if ((edge_b > edge_c) && (edge_b > edge_a))
{
removal.r = 1;
}
else
{
removal.b = 1;
}
if (colorChoices.Count > 0)
{
var next = colorChoices[0]; colorChoices.RemoveAt(0);
vertColorStorage[vertIdx] = next + removal;
}
//JASON CLEANUP: this else will never trigger, as there are only 3 verticies
else
{
GD.Print("in else!");
var coords2 = new List <Color>()
{
Colors.Red, Colors.Green, Colors.Blue
};
for (var m = 0; m < 3; m++)
{
if (m == faceVertId)
{
continue;
}
var vid2 = mdt.GetFaceVertex(faceIdx, m);
if (vertColorStorage.ContainsKey(vid2))
{
coords2.Remove(vertColorStorage[vid2]);
}
vertColorStorage[vertIdx] = coords2[0] + removal; //BUG? coords was checked to not have any.... maybe means coords2
coords2.RemoveAt(0);
}
}
mdt.SetVertexColor(vertIdx, vertColorStorage[vertIdx]);
}
}
}
}
/// <summary>
///
/// </summary>
/// <param name="sortedVerts"></param>
/// <param name="colorChoices"></param>
/// <param name="mdt"></param>
private static void _WELSH_POWELL_ADJUSTED(List <VertexInfo> sortedVerts, Color[] colorChoices, MeshDataTool mdt)
{
for (var h = 0; h < colorChoices.Length; h++)
{
var color = colorChoices[h];
//enumerate in reverse so we inspect our verticies with highest degree first (most edges)
//and also lets us remove from the list directly
for (int i = sortedVerts.Count - 1; i >= 0; i--)
{
//if we remove too many, reset our index. this means we might invoke this loop on an element more than once.
//but that's ok as it doesn't have negative consiquences.
if (i >= sortedVerts.Count)
{
i = sortedVerts.Count - 1;
}
var vertInfo = sortedVerts[i];
if (vertInfo.TrySetAvailableColor(color))
{
sortedVerts.RemoveAt(i);
//preemptively try to set adjacent and adjadj with related colors
foreach (var adj0Vert in vertInfo.GetAdjacentVertInfo())
{
//JASON OPTIMIZATION: reduces non-colored by aprox 8% on sibnek 100k vert mesh.
foreach (var adj1Vert in adj0Vert.GetAdjacentVertInfo())
{
if (adj1Vert.adjacentVerticies.Length > vertInfo.adjacentVerticies.Length * 0.75)
{
adj1Vert.TrySetAvailableColor(color);
}
}
}
}
}
}
//any remaining verts are uncolored! bad.
GD.Print($"Done building mesh. Verticies uncolored count={sortedVerts.Count} / {mdt.GetVertexCount()}");
//loop through all faces, finding the vertex for the longest edge,
//and encode that into green channel = 0.1;
//may be used by the shader to remove interrior edges
var faceCount = mdt.GetFaceCount();
for (var faceIdx = 0; faceIdx < faceCount; faceIdx++)
{
var vertIdx0 = mdt.GetFaceVertex(faceIdx, 0);
var vertIdx1 = mdt.GetFaceVertex(faceIdx, 1);
var vertIdx2 = mdt.GetFaceVertex(faceIdx, 2);
var vert0 = mdt.GetVertex(vertIdx0);
var vert1 = mdt.GetVertex(vertIdx1);
var vert2 = mdt.GetVertex(vertIdx2);
var edgeLen1 = vert0.DistanceTo(vert1);
var edgeLen2 = vert0.DistanceTo(vert2);
var edgeLen3 = vert1.DistanceTo(vert2);
int longestEdgeVertIdx = -1;
if (edgeLen1 > edgeLen2 && edgeLen1 > edgeLen3)
{
longestEdgeVertIdx = vertIdx2;
}
if (edgeLen2 > edgeLen1 && edgeLen2 > edgeLen3)
{
longestEdgeVertIdx = vertIdx1;
}
if (edgeLen3 > edgeLen1 && edgeLen3 > edgeLen2)
{
longestEdgeVertIdx = vertIdx0;
}
if (longestEdgeVertIdx != -1)
{
var curCol = mdt.GetVertexColor(longestEdgeVertIdx);
//encode that this vertext has longest edge (used in shader code)
curCol.g += 0.1f;
mdt.SetVertexColor(longestEdgeVertIdx, curCol);
}
}
////for any remaining verticies color alpha
//var alphaBlack = new Color(0, 0, 0, 0);
//for (int i = sortedVerts.Count - 1; i >= 0; i--)
//{
// var vertInfo = sortedVerts[i];
// mdt.SetVertexColor(vertInfo.vertIdx, alphaBlack);
// //vertInfo.TrySetAvailableColor(Colors.White, true);
//}
}
private Godot.Collections.Array createSurfaceByBones(ArrayMesh mesh, int surface, Skin newSkin, List <UMAReciepeBindPose> origBindPoses)
{
var mdt = new MeshDataTool();
mdt.CreateFromSurface(mesh, surface);
var st = new SurfaceTool();
st.Begin(Mesh.PrimitiveType.Triangles);
var newBindPoses = new List <UMAReciepeBindPose>();
if (newSkin != null)
{
for (int i = 0; i < newSkin.GetBindCount(); i++)
{
newBindPoses.Add(new UMAReciepeBindPose
{
boneName = newSkin.GetBindName(i),
transform = newSkin.GetBindPose(i),
boneIndex = newSkin.GetBindBone(i)
});
}
}
var boneAmount = 0;
for (int i = 0; i < mdt.GetVertexCount(); i++)
{
var oldVer = mdt.GetVertex(i);
var oldNorm = mdt.GetVertexNormal(i);
var newVer = new Vector3();
var newNorm = new Vector3();
var indexes = mdt.GetVertexBones(i);
// st.AddTangent(mdt.GetVertexTangent(i));
st.AddBones(mdt.GetVertexBones(i));
st.AddWeights(mdt.GetVertexWeights(i));
int boneId = 0;
foreach (var weight in mdt.GetVertexWeights(i))
{
if (newBindPoses.Count >= indexes[boneId] && origBindPoses.Count >= indexes[boneId])
{
var restBoneNew = newBindPoses[indexes[boneId]];
var restBoneTemplate = origBindPoses[indexes[boneId]];
var dataup = restBoneNew.transform.Xform(Vector3.Up);
var dataright = restBoneNew.transform.Xform(Vector3.Right);
var templateup = restBoneTemplate.transform.Xform(Vector3.Up);
var templateright = restBoneTemplate.transform.Xform(Vector3.Right);
if (Mathf.Abs(dataup.AngleTo(templateup)) > 1 || Mathf.Abs(dataright.AngleTo(templateright)) > 1)
{
Transform convertMatrix = restBoneTemplate.transform.Inverse() * restBoneNew.transform;
newVer += convertMatrix.Xform(oldVer) * weight;
newNorm += convertMatrix.basis.Xform(oldNorm) * weight;
}
else
{
newVer += oldVer * weight;
newNorm += oldNorm * weight;
}
}
else
{
newVer += oldVer * weight;
newNorm += oldNorm * weight;
}
boneId++;
}
st.AddUv(mdt.GetVertexUv(i));
if (mdt.GetVertexColor(i) != null)
{
st.AddColor(mdt.GetVertexColor(i));
}
if (mdt.GetVertexUv2(i) != null)
{
st.AddUv2(mdt.GetVertexUv2(i));
}
st.AddNormal(newNorm);
st.AddVertex(newVer);
boneAmount += mdt.GetVertexBones(i).Length;
}
//creating indexes
for (int face = 0; face < mdt.GetFaceCount(); face++)
{
for (int faceI = 0; faceI < 3; faceI++)
{
var ind = mdt.GetFaceVertex(face, faceI);
st.AddIndex(ind);
}
}
st.GenerateTangents();
return(st.CommitToArrays());
}
// Declare member variables here. Examples:
// private int a = 2;
// private string b = "text";
// Called when the node enters the scene tree for the first time.
public override void _Ready()
{
var orig = GetNode <MeshInstance>("orig");
var tights = GetNode <MeshInstance>("tights");
var result = GetNode <MeshInstance>("result");
var tmpMesh = new ArrayMesh();
var surfaceTool = new SurfaceTool();
surfaceTool.Begin(Mesh.PrimitiveType.Triangles);
var tool = new MeshDataTool();
tool.CreateFromSurface((ArrayMesh)tights.Mesh, 0);
var tool2 = new MeshDataTool();
tool2.CreateFromSurface((ArrayMesh)orig.Mesh, 0);
List <Vector3> vertices = new List <Vector3>();
for (int v = 0; v < tool2.GetVertexCount(); v++)
{
vertices.Add(tool2.GetVertex(v));
}
for (int v = 0; v < tool.GetVertexCount(); v++)
{
// surfaceTool.AddNormal(tool.GetVertexNormal(v));
// surfaceTool.AddColor(tool.GetVertexColor(v));
// surfaceTool.AddUv(tool.GetVertexUv(v));
// surfaceTool.AddUv2(tool.GetVertexUv2(v));
// surfaceTool.AddTangent(tool.GetVertexTangent(v));
var newVer = tool.GetVertex(v);
var replace = vertices.OrderBy(df => newVer.DistanceTo(df)).FirstOrDefault();
if (replace != null && replace != Vector3.Zero && replace.DistanceTo(newVer) > 0.03f)
{
GD.Print("replace" + newVer + " by dist " + replace.DistanceTo(newVer));
surfaceTool.AddVertex(replace);
}
else
{
surfaceTool.AddVertex(newVer);
}
}
for (int fc = 0; fc < tool.GetFaceCount(); fc++)
{
for (var i = 0; i <= 2; i++)
{
var ind = tool.GetFaceVertex(fc, i);
surfaceTool.AddIndex(ind);
}
}
surfaceTool.Commit(tmpMesh);
result.Mesh = tmpMesh;
}
/// <summary>
/// experimental greedy mesh technique.
/// </summary>
/// <param name="sortedVerts"></param>
/// <param name="colorChoices"></param>
/// <param name="mdt"></param>
private static void _GREEDY_FACE(List <VertexInfo> sortedVerts, Color[] colorChoices, MeshDataTool mdt)
{
List <VertexInfo> noColor = new List <VertexInfo>();
for (int i = sortedVerts.Count - 1; i >= 0; i--)
{
var removed = false;
var vertInfo = sortedVerts[i];
for (var h = 0; h < colorChoices.Length; h++)
{
var color = colorChoices[h];
if (vertInfo.TrySetAvailableColor(color))
{
sortedVerts.RemoveAt(i);
removed = true;
foreach (var adj0Vert in vertInfo.GetAdjacentVertInfo())
{
if (h < colorChoices.Length - 2 && adj0Vert.adjacentVerticies.Length >= 3 //vertInfo.adjacentVerticies.Length
)
{
if (adj0Vert.TrySetAvailableColor(colorChoices[h + 1]))
{
;
}
}
if (h < colorChoices.Length - 3 && adj0Vert.adjacentVerticies.Length >= 3 //vertInfo.adjacentVerticies.Length
)
{
adj0Vert.TrySetAvailableColor(colorChoices[h + 2]);
}
foreach (var adj1Vert in adj0Vert.GetAdjacentVertInfo())
{
if (adj1Vert.adjacentVerticies.Length >= 3) //vertInfo.adjacentVerticies.Length)
//if (adj1Vert.adjacentVerticies.Length >= vertInfo.adjacentVerticies.Length)
{
adj1Vert.TrySetAvailableColor(color);
}
}
}
break;
}
}
if (removed == false)
{
noColor.Add(vertInfo);
//var alphaBlack = new Color(0, 0, 0, 0);
vertInfo.TrySetAvailableColor(Colors.White, true);
sortedVerts.RemoveAt(i);
}
}
GD.Print($"_GREEDY_FACE uncolored count={noColor.Count} / {mdt.GetVertexCount()}");
}
/// <summary>
/// experimental greedy mesh technique.
/// </summary>
/// <param name="sortedVerts"></param>
/// <param name="colorChoices"></param>
/// <param name="mdt"></param>
private static void _GREEDY_BASIC(List <VertexInfo> sortedVerts, Color[] colorChoices, MeshDataTool mdt)
{
bool TrySetAdjAdj(VertexInfo _current, Color c, List <VertexInfo> _store)
{
if (_store.Contains(_current) == false)
{
return(true);
}
if (_current.TrySetAvailableColor(c))
{
_store.Remove(_current);
foreach (var adj0Vert in _current.GetAdjacentVertInfo())
{
foreach (var adj1Vert in adj0Vert.GetAdjacentVertInfo())
{
TrySetAdjAdj(adj1Vert, c, _store);
}
}
return(true);
}
return(false);
}
List <VertexInfo> problems = new List <VertexInfo>();
while (sortedVerts.Count > 0)
{
var vertInfo = sortedVerts[sortedVerts.Count - 1];
//sortedVerts.RemoveAt(sortedVerts.Count - 1);
for (var h = 0; h < colorChoices.Length; h++)
{
var color = colorChoices[h];
//TrySetAdjAdj(vertInfo, color, sortedVerts);
if (vertInfo.TrySetAvailableColor(color))
{
sortedVerts.Remove(vertInfo);
//preemptively try to set adjacent and adjadj with related colors
foreach (var adj0Vert in vertInfo.GetAdjacentVertInfo())
{
if (h < colorChoices.Length - 2 // && adj0Vert.adjacentVerticies.Length >= vertInfo.adjacentVerticies.Length
)
{
if (adj0Vert.TrySetAvailableColor(colorChoices[h + 1]))
{
;
}
}
if (h < colorChoices.Length - 3 //&& adj0Vert.adjacentVerticies.Length >= vertInfo.adjacentVerticies.Length
)
{
adj0Vert.TrySetAvailableColor(colorChoices[h + 2]);
}
foreach (var adj1Vert in adj0Vert.GetAdjacentVertInfo())
{
//if (adj1Vert.adjacentVerticies.Length >= vertInfo.adjacentVerticies.Length)
{
adj1Vert.TrySetAvailableColor(color);
}
}
}
break;
}
}
if (sortedVerts.Contains(vertInfo))
{
problems.Add(vertInfo);
vertInfo.TrySetAvailableColor(Colors.White, true);
sortedVerts.Remove(vertInfo);
}
}
GD.Print($"_GREEDY_BASIC uncolored count={problems.Count} / {mdt.GetVertexCount()}");
}
public override void _Ready()
{
var mesh = new PlaneMesh();
mesh.Size = new Vector2(size, size);
mesh.SubdivideDepth = 3;
mesh.SubdivideWidth = (int)position.x == 0 ? (int)size : 3;
var surface_tool = new SurfaceTool();
surface_tool.CreateFrom(mesh, 0);
var mesh_tool = new MeshDataTool();
mesh_tool.CreateFromSurface(surface_tool.Commit(), 0);
var biome = GetBiome(/*hydro_noise.GetNoise2dv(position / size), */ heat_noise.GetNoise2d(position.x / size / 10.0f, position.y));
for (int i = 0; i < mesh_tool.GetVertexCount(); ++i)
{
var vertex = mesh_tool.GetVertex(i);
var vertex_global_pos = position + new Vector2(vertex.x, vertex.z);
var height_noise_val = height_noise.GetNoise2dv(vertex_global_pos);
vertex.y = height_noise_val * 20;
var color_factor = (height_noise_val + 1) / 2.0f;
var hydro_val = (int)Math.Round(hydro_noise.GetNoise2dv(vertex_global_pos));
if ((int)vertex.x == 0 && (int)position.x == 0)
{
mesh_tool.SetVertexColor(i, new Color(color_factor, color_factor / 2, 0.0f));
}
else if (hydro_val == -1)
{
mesh_tool.SetVertexColor(i, biome.dry_color * color_factor);
}
else if (hydro_val == 1)
{
mesh_tool.SetVertexColor(i, biome.humid_color * color_factor);
}
else
{
mesh_tool.SetVertexColor(i, biome.ground_color * color_factor);
}
mesh_tool.SetVertex(i, vertex);
}
/*if (base_tree_mesh == null && ResourceLoader.Exists("res://assets/tree.obj"))
* {
* base_tree_mesh = ResourceLoader.Load<Mesh>("res://assets/tree.obj");
* }
* if (base_tree_material == null && ResourceLoader.Exists("res://assets/tree.tres"))
* {
* Console.WriteLine("OK");
* base_tree_material = ResourceLoader.Load<SpatialMaterial>("res://assets/tree.tres");
* }
*
* MultiMesh trees = new MultiMesh();
* trees.Mesh = base_tree_mesh;
* trees.TransformFormat = MultiMesh.TransformFormatEnum.Transform3d;
*
* if ((int)position.x == 0)
* {
* var points1 = Utility.UniformPoissonDiskSampler.SampleRectangle(-new Vector2(size, size) / 2, new Vector2(-5, size / 2.0f), biome.tree_spacing);
* var points2 = Utility.UniformPoissonDiskSampler.SampleRectangle(new Vector2(5, 0), new Vector2(size, size) / 2, biome.tree_spacing);
* trees.InstanceCount = points1.Count + points2.Count;
*
* int i = 0;
* foreach (var p in points1)
* {
* trees.SetInstanceTransform(i, Transform.Identity.Scaled(new Vector3(1, biome.tree_size, 1)).Translated(new Vector3(p.x, height_noise.GetNoise2dv(position + p) * 20, p.y)));
++i;
* }
*
* foreach (var p in points2)
* {
* trees.SetInstanceTransform(i, Transform.Identity.Scaled(new Vector3(1, biome.tree_size, 1)).Translated(new Vector3(p.x, height_noise.GetNoise2dv(position + p) * 20, p.y)));
++i;
* }
* }
* else
* {
* var points = Utility.UniformPoissonDiskSampler.SampleRectangle(-new Vector2(size, size) / 2, new Vector2(size, size) / 2, biome.tree_spacing);
* trees.InstanceCount = points.Count;
* int i = 0;
* foreach (var p in points)
* {
* trees.SetInstanceTransform(i, Transform.Identity.Scaled(new Vector3(1, biome.tree_size, 1)).Translated(new Vector3(p.x, height_noise.GetNoise2dv(position + p) * 20, p.y)));
++i;
* }
* }
*
* MultiMeshInstance child = new MultiMeshInstance();
* child.Multimesh = trees;
* child.MaterialOverride = base_tree_material;
* AddChild(child);*/
var array = new ArrayMesh();
mesh_tool.CommitToSurface(array);
Mesh = array;
if (base_shader == null && ResourceLoader.Exists("res://assets/chunk_shader.tres"))
{
base_shader = ResourceLoader.Load <ShaderMaterial>("res://assets/chunk_shader.tres");
}
var shader = base_shader;
MaterialOverride = shader;
}