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 TextureDictionary(RenderWareStream.TextureDictionary txd)
{
_diffuse = new Dictionary<string, Texture>(StringComparer.InvariantCultureIgnoreCase);
_alpha = new Dictionary<string, Texture>(StringComparer.InvariantCultureIgnoreCase);
foreach (var native in txd.Textures) {
var tex = new Texture(native);
if (tex.IsDiffuse) {
_diffuse.Add(tex.DiffuseName, tex);
}
if (tex.IsAlpha) {
if (_alpha.ContainsKey(tex.AlphaName)) {
Debug.LogWarningFormat("Tried to re-add {0} (diffuse {1} vs {2})",
tex.AlphaName, tex.DiffuseName, _alpha[tex.AlphaName].DiffuseName);
continue;
}
_alpha.Add(tex.AlphaName, tex);
}
}
}
public GeometryFrame(RenderWareStream.Frame src, RenderWareStream.Atomic atomic)
{
Source = src;
Name = src.Name != null ? src.Name.Value : DefaultName;
ParentIndex = src.ParentIndex;
GeometryIndex = atomic == null ? -1 : (int)atomic.GeometryIndex;
Position = Types.Convert(src.Position);
Rotation = UnityEngine.Quaternion.LookRotation(Types.Convert(src.MatrixForward), Types.Convert(src.MatrixUp));
}
private static GeometryFrame Convert(RenderWareStream.Frame src, IEnumerable<Atomic> atomics)
{
var atomic = atomics.FirstOrDefault(x => x.FrameIndex == src.Index);
return new GeometryFrame(src, atomic);
}
private static Mesh Convert(RenderWareStream.Geometry src)
{
var mesh = new Mesh();
// ReSharper disable ConvertClosureToMethodGroup
mesh.vertices = src.Vertices.Select(x => Types.Convert(x)).ToArray();
if (src.Normals != null) {
mesh.normals = src.Normals.Select(x => Types.Convert(x)).ToArray();
}
if (src.Colours != null) {
mesh.colors32 = src.Colours.Select(x => Types.Convert(x)).ToArray();
}
if (src.TexCoords != null && src.TexCoords.Length > 0) {
mesh.uv = src.TexCoords[0].Select(x => Types.Convert(x)).ToArray();
}
// ReSharper restore ConvertClosureToMethodGroup
if (src.Normals == null) {
mesh.normals = CalculateNormals(src, mesh.vertices);
}
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.Material Convert(RenderWareStream.Material src, TextureDictionary[] txds, MaterialFlags flags)
{
LoadedTexture diffuse;
LoadedTexture mask = null;
var overrideAlpha = (flags & MaterialFlags.OverrideAlpha) == MaterialFlags.OverrideAlpha;
var vehicle = (flags & MaterialFlags.Vehicle) == MaterialFlags.Vehicle;
if (!overrideAlpha && src.Colour.A != 255) {
flags |= MaterialFlags.Alpha;
}
if (src.TextureCount > 0) {
var tex = src.Textures[0];
diffuse = txds.GetDiffuse(tex.TextureName);
if (src.TextureCount > 1) {
Debug.LogFormat("Something has {0} textures!", src.TextureCount);
}
if (diffuse == null) {
Debug.LogWarningFormat("Unable to find texture {0}", tex.TextureName);
}
if (!string.IsNullOrEmpty(tex.MaskName)) {
mask = txds.GetAlpha(tex.MaskName) ?? diffuse;
} else if (vehicle) {
mask = diffuse;
}
if (!overrideAlpha && mask != null && mask.HasAlpha) {
flags |= MaterialFlags.Alpha;
}
} else {
diffuse = WhiteTex;
}
var shader = GetShader(flags);
var mat = new UnityEngine.Material(shader);
var clr = Types.Convert(src.Colour);
if (vehicle) {
var found = false;
for (var i = 1; i < _sKeyColors.Length; ++i) {
var key = _sKeyColors[i];
if (key.r != clr.r || key.g != clr.g || key.b != clr.b) continue;
mat.SetInt(CarColorIndexId, i);
found = true;
break;
}
if (found) {
mat.color = Color.white;
} else {
mat.color = clr;
}
} else {
mat.color = clr;
}
if (diffuse != null) mat.SetTexture(MainTexId, diffuse.Texture);
if (mask != null) mat.SetTexture(MaskTexId, mask.Texture);
mat.SetFloat(MetallicId, src.Specular);
mat.SetFloat(SmoothnessId, src.Smoothness);
return mat;
}
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;
}