public void SmoothNodeTriangles(RsmNode node, List <RsmTriangle> triangles)
{
//var maxSmoothGroup = node.Faces.Max(f => f.SmoothGroup);
//we can assume all faces in a given triangle has the same normal at this point
var faceNormals = new List <Vector3>();
//var faceNormals = triangles.Select(t => new[] {t.Normals[0], t.Normals[1], t.Normals[2]}).ToList();
foreach (var t in triangles)
{
faceNormals.Add(VectorHelper.CalcNormal(t.Vertices[0], t.Vertices[1], t.Vertices[2]));
}
for (var i = 0; i < node.Faces.Count; i++) //loop through the first set of faces
{
var face1 = node.Faces[i];
var f1Normals = new[] { faceNormals[i], faceNormals[i], faceNormals[i] };
var f1Counts = new[] { 1, 1, 1 };
for (var j = 0; j < node.Faces.Count; j++) //loop through the second set of faces
{
var face2 = node.Faces[j];
if (i == j || face1.SmoothGroup != face2.SmoothGroup) //they must be in the same smooth group and not the same face
{
continue;
}
for (var k = 0; k < 3; k++) //loop through each vertex in face1
{
for (var l = 0; l < 3; l++) //loop through each vertex in face2
{
if (face1.VertexIds[k] == face2.VertexIds[l]) //if the ids match, add their normal to the total
{
f1Normals[k] += faceNormals[j];
f1Counts[k]++;
}
}
}
}
for (var k = 0; k < 3; k++)
{
var normal = (f1Normals[k] / f1Counts[k]).normalized;
if (normal.magnitude > 0.1) //discard normals that don't normalize, as that means it's not pointing any direction
{
triangles[i].Normals[k] = normal;
}
}
}
}
private RsmNode LoadNode()
{
var node = new RsmNode();
node.Name = br.ReadKoreanString(40);
node.ParentName = br.ReadKoreanString(40);
if (string.IsNullOrWhiteSpace(node.Name))
{
node.Name = $"Object {nameId}";
nameId++;
}
var textureCount = br.ReadInt32();
node.TextureIds = new List <int>();
for (var i = 0; i < textureCount; i++)
{
node.TextureIds.Add(br.ReadInt32());
}
var forward = br.ReadVector3();
var up = br.ReadVector3();
var right = br.ReadVector3();
node.OffsetMatrix = new Matrix4x4(forward, up, right, new Vector4(0, 0, 0, 1));
node.Offset = br.ReadVector3();
node.Position = br.ReadVector3();
node.RotationAngle = br.ReadSingle();
node.RotationAxis = br.ReadVector3();
node.Scale = br.ReadVector3();
var vertCount = br.ReadInt32();
for (var i = 0; i < vertCount; i++)
{
node.Vertices.Add(node.OffsetMatrix * br.ReadVector3());
}
var uvCount = br.ReadInt32();
for (var i = 0; i < uvCount; i++)
{
node.Colors.Add(model.Version >= 12 ? br.ReadByteColor() : Color.white);
var uv = br.ReadVector2();
uv.x = Mathf.Clamp(uv.x, 0, 1);
uv.y = Mathf.Clamp(1 - uv.y, 0, 1); //1 - (uv.y * 0.98f + 0.01f); //wut
node.UVs.Add(uv);
}
var faceCount = br.ReadInt32();
for (var i = 0; i < faceCount; i++)
{
var face = new RsmFace();
face.VertexIds[0] = br.ReadUInt16();
face.VertexIds[1] = br.ReadUInt16();
face.VertexIds[2] = br.ReadUInt16();
face.UVIds[0] = br.ReadUInt16();
face.UVIds[1] = br.ReadUInt16();
face.UVIds[2] = br.ReadUInt16();
face.TextureId = br.ReadUInt16();
face.Padding = br.ReadUInt16();
face.TwoSided = br.ReadInt32() == 1;
if (model.Version >= 12)
{
face.SmoothGroup = br.ReadInt32();
}
node.Faces.Add(face);
}
if (model.Version >= 15)
{
var posKeyFrames = br.ReadInt32();
for (var i = 0; i < posKeyFrames; i++)
{
node.PosKeyFrames.Add(new RsmPosKeyframe()
{
Frame = br.ReadInt32(), Position = br.ReadRoPosition()
});
}
}
var rotKeyFrames = br.ReadInt32();
for (var i = 0; i < rotKeyFrames; i++)
{
var keyframe = new RsmRotKeyFrame()
{
Frame = br.ReadInt32(), Rotation = br.ReadQuaternion().FlipY()
};
node.RotationKeyFrames.Add(keyframe);
//Debug.Log(keyframe.Rotation.eulerAngles);
}
node.Matrix = Matrix4x4.identity;
node.Bounds = new Bounds();
return(node);
}
public GameObject CompileNode(GameObject parentGameObject, RsmNode node, Material mat)
{
var go = new GameObject(node.Name);
var mf = go.AddComponent <MeshFilter>();
var mr = go.AddComponent <MeshRenderer>();
var mc = go.AddComponent <MeshCollider>();
go.layer = LayerMask.NameToLayer("Object");
go.isStatic = true;
mr.material = mat;
mr.receiveGI = ReceiveGI.Lightmaps;
mr.shadowCastingMode = ShadowCastingMode.TwoSided;
mc.cookingOptions = MeshColliderCookingOptions.CookForFasterSimulation |
MeshColliderCookingOptions.EnableMeshCleaning |
MeshColliderCookingOptions.WeldColocatedVertices |
MeshColliderCookingOptions.UseFastMidphase;
go.transform.parent = parentGameObject.transform;
var position = node.Position;
var rotation = Quaternion.AngleAxis(node.RotationAngle * Mathf.Rad2Deg, node.RotationAxis).FlipY();
var scale = node.Scale;
var offset = node.Offset;
if (node.PosKeyFrames.Count > 0)
{
position = node.PosKeyFrames[0].Position;
}
if (node.RotationKeyFrames.Count > 0)
{
rotation = node.RotationKeyFrames[0].Rotation;
}
go.transform.localPosition = position.FlipY();
go.transform.localRotation = rotation;
go.transform.localScale = scale;
var vTrans = new List <Vector3>();
var tris = new List <RsmTriangle>();
foreach (var f in node.Faces)
{
var tri = new RsmTriangle()
{
TwoSided = f.TwoSided
};
var realTexId = node.TextureIds[f.TextureId];
for (var i = 0; i < 3; i++)
{
var v = node.Vertices[f.VertexIds[i]].FlipY() + offset.FlipY();
vTrans.Add(go.transform.TransformPoint(v));
tri.Vertices[i] = v;
tri.UVs[i] = VectorHelper.RemapUV(node.UVs[f.UVIds[i]], atlasRects[realTexId]);
tri.Colors[i] = node.Colors[f.UVIds[i]];
}
tri.CalcNormals();
tris.Add(tri);
}
if (model.ShadingType == RsmShadingType.Smooth)
{
SmoothNodeTriangles(node, tris);
}
if (vTrans.Count > 0)
{
node.Bounds = GeometryUtility.CalculateBounds(vTrans.ToArray(), Matrix4x4.identity);
}
else
{
node.Bounds = new Bounds(Vector3.zero, Vector3.zero);
}
var mb = new MeshBuilder();
foreach (var t in tris)
{
mb.AddFullTriangle(t.Vertices, t.FlippedNormals, t.UVs, t.Colors, new[] { 2, 1, 0 });
if (t.TwoSided)
{
mb.AddFullTriangle(t.Vertices, t.Normals, t.UVs, t.Colors, new[] { 0, 1, 2 });
}
}
var mesh = mb.Build(node.Name, true);
mf.sharedMesh = mesh;
mc.sharedMesh = mesh;
if (tris.Any(t => t.TwoSided))
{
mr.shadowCastingMode = ShadowCastingMode.On; //disable two sided shadows if the model has any two sided faces
}
if (node.Children.Count > 0)
{
foreach (var child in node.Children)
{
CompileNode(go, child, mat);
}
}
if (node.RotationKeyFrames.Count != 0 || node.PosKeyFrames.Count != 0)
{
go.ChangeStaticRecursive(false);
}
if (string.IsNullOrWhiteSpace(node.ParentName))
{
var bounds = node.Bounds;
foreach (var n in model.RsmNodes)
{
bounds.Encapsulate(n.Bounds);
}
var centering = new Vector3(bounds.center.x, bounds.min.y, bounds.center.z);
//Debug.Log(centering);
go.transform.localPosition -= centering;
go.transform.localPosition *= 0.2f;
go.transform.localScale *= 0.2f;
}
if (node.RotationKeyFrames.Count > 0)
{
var r = go.AddComponent <RoKeyframeRotator>();
var keyframes = new List <float>();
var rotations = new List <Quaternion>();
foreach (var k in node.RotationKeyFrames)
{
keyframes.Add(k.Frame / 1000f);
rotations.Add(k.Rotation);
}
r.Keyframes = keyframes.ToArray();
r.Rotations = rotations.ToArray();
}
//save Mesh
var meshPath = AssetHelper.GetAssetPath(Path.Combine("Assets/models/mesh", savePath, baseName), Path.GetFileNameWithoutExtension(node.Name) + ".asset");
AssetDatabase.CreateAsset(mesh, meshPath);
return(go);
}