private Geometry(RenderWareStream.Geometry geom, Mesh mesh, TextureDictionary[] textureDictionaries)
{
Mesh = mesh;
if (geom.Skinning != null) {
Mesh.boneWeights = Types.Convert(geom.Skinning.VertexBoneIndices, geom.Skinning.VertexBoneWeights);
SkinToBoneMatrices = Types.Convert(geom.Skinning.SkinToBoneMatrices);
}
_geom = geom;
_textureDictionaries = textureDictionaries;
_materials = new Dictionary<MaterialFlags, UnityEngine.Material[]>();
}
private Geometry(RenderWareStream.Geometry geom, Mesh mesh, TextureDictionary[] textureDictionaries)
{
Mesh = mesh;
if (geom.Skinning != null)
{
Mesh.boneWeights = Types.Convert(geom.Skinning.VertexBoneIndices, geom.Skinning.VertexBoneWeights);
SkinToBoneMatrices = Types.Convert(geom.Skinning.SkinToBoneMatrices);
}
_geom = geom;
_textureDictionaries = textureDictionaries;
_materials = new Dictionary <MaterialFlags, UnityEngine.Material[]>();
}
private static Mesh Convert(RenderWareStream.Geometry src)
{
var mesh = new Mesh();
// ReSharper disable ConvertClosureToMethodGroup
var meshVertices = src.Vertices;//Utilities.F.ConvertArray( src.Vertices, x => Types.Convert(x));
mesh.vertices = meshVertices;
if (src.Normals != null)
{
mesh.normals = src.Normals;
}
if (src.Colours != null)
{
mesh.colors32 = src.Colours;
}
if (src.TexCoords != null && src.TexCoords.Length > 0)
{
mesh.uv = src.TexCoords[0];
}
// ReSharper restore ConvertClosureToMethodGroup
if (src.Normals == null)
{
mesh.normals = CalculateNormals(src, meshVertices);
}
mesh.subMeshCount = src.MaterialSplits.Length;
var isTriangleStrip = (src.Flags & GeometryFlag.TriangleStrips) == GeometryFlag.TriangleStrips;
var subMesh = 0;
foreach (var split in src.MaterialSplits)
{
var indices = isTriangleStrip
? FromTriangleStrip(split.FaceIndices)
: split.FaceIndices;
mesh.SetIndices(indices, MeshTopology.Triangles, subMesh++);
}
mesh.RecalculateBounds();
return(mesh);
}
private static UnityEngine.Vector3[] CalculateNormals(RenderWareStream.Geometry src, UnityEngine.Vector3[] verts)
{
var norms = new UnityEngine.Vector3[src.VertexCount];
for (var i = 0; i < src.FaceCount; ++i)
{
var face = src.Faces[i];
var a = verts[face.Vertex0];
var b = verts[face.Vertex1];
var c = verts[face.Vertex2];
var v = b - a;
var w = c - b;
var norm = new UnityEngine.Vector3(
v.y * w.z - v.z * w.y,
v.z * w.x - v.x * w.z,
v.x * w.y - v.y * w.x).normalized;
norms[face.Vertex0] -= norm;
norms[face.Vertex1] -= norm;
norms[face.Vertex2] -= norm;
}
for (var i = 0; i < src.VertexCount; ++i)
{
if (norms[i].sqrMagnitude <= 0f)
{
norms[i] = UnityEngine.Vector3.up;
}
else
{
norms[i] = norms[i].normalized;
}
}
return(norms);
}
