public override Mesh decode(MeshInfo minfo, CtmInputStream input)
{
int vc = minfo.getVertexCount();
AttributeData[] tex = new AttributeData[minfo.getUvMapCount()];
AttributeData[] att = new AttributeData[minfo.getAttrCount()];
checkTag(input.readLittleInt(), INDX);
int[] indices = readIntArray(input, minfo.getTriangleCount(), 3, false);
checkTag(input.readLittleInt(), VERT);
float[] vertices = readFloatArray(input, vc * Mesh.CTM_POSITION_ELEMENT_COUNT, 1);
float[] normals = null;
if (minfo.hasNormals())
{
checkTag(input.readLittleInt(), NORM);
normals = readFloatArray(input, vc, Mesh.CTM_NORMAL_ELEMENT_COUNT);
}
for (int i = 0; i < tex.Length; ++i)
{
checkTag(input.readLittleInt(), TEXC);
tex[i] = readUVData(vc, input);
}
for (int i = 0; i < att.Length; ++i)
{
checkTag(input.readLittleInt(), ATTR);
att[i] = readAttrData(vc, input);
}
return(new Mesh(vertices, normals, indices, tex, att));
}
public override Mesh decode(MeshInfo minfo, CtmInputStream input)
{
int vc = minfo.getVertexCount();
AttributeData[] tex = new AttributeData[minfo.getUvMapCount()];
AttributeData[] att = new AttributeData[minfo.getAttrCount()];
checkTag(input.readLittleInt(), INDX);
int[] indices = readIntArray(input, minfo.getTriangleCount(), 3, false);
checkTag(input.readLittleInt(), VERT);
float[] vertices = readFloatArray(input, vc * Mesh.CTM_POSITION_ELEMENT_COUNT, 1);
float[] normals = null;
if (minfo.hasNormals()) {
checkTag(input.readLittleInt(), NORM);
normals = readFloatArray(input, vc, Mesh.CTM_NORMAL_ELEMENT_COUNT);
}
for (int i = 0; i < tex.Length; ++i) {
checkTag(input.readLittleInt(), TEXC);
tex[i] = readUVData(vc, input);
}
for (int i = 0; i < att.Length; ++i) {
checkTag(input.readLittleInt(), ATTR);
att[i] = readAttrData(vc, input);
}
return new Mesh(vertices, normals, indices, tex, att);
}
private float[] readVertices(CtmInputStream input, Grid grid, int vcount, float precision)
{
checkTag(input.readLittleInt(), VERT);
int[] intVertices = input.readPackedInts(vcount, Mesh.CTM_POSITION_ELEMENT_COUNT, false);
checkTag(input.readLittleInt(), GIDX);
int[] gridIndices = input.readPackedInts(vcount, 1, false);
for (int i = 1; i < vcount; i++)
{
gridIndices[i] += gridIndices[i - 1];
}
return(CommonAlgorithm.restoreVertices(intVertices, gridIndices, grid, precision));
}
public void decode(ref List <Mesh> meshList)
{
if (decoded)
{
throw new Exception("Ctm File got already decoded");
}
decoded = true;
if (input.readLittleInt() != OCTM)
{
throw new BadFormatException("The CTM file doesn't start with the OCTM tag!");
}
int formatVersion = input.readLittleInt();
int methodTag = input.readLittleInt();
MeshInfo mi = new MeshInfo(input.readLittleInt(), //vertex count
input.readLittleInt(), //triangle count
input.readLittleInt(), //uvmap count
input.readLittleInt(), //attribute count
input.readLittleInt()); //flags
comment = input.readString();
// Uncompress from stream
Mesh ctmMesh = null;
foreach (MeshDecoder md in DECODER)
{
if (md.isFormatSupported(methodTag, formatVersion))
{
ctmMesh = md.decode(mi, input);
break;
}
}
if (ctmMesh == null)
{
throw new IOException("No sutible decoder found for Mesh of compression type: " + unpack(methodTag) + ", version " + formatVersion);
}
// Check mesh integrity
ctmMesh.checkIntegrity();
// Unity only support maximum 65534 vertices per mesh. So large meshes need to be splitted.
if (ctmMesh.vertices.Length > maxNumVerticesPerMesh * 3)
{
SplitMesh(ctmMesh, ref meshList);
}
else
{
meshList.Add(ctmMesh);
}
//return m;
}
private float[] readNormals(CtmInputStream input, float[] vertices, int[] indices,
float normalPrecision, int vcount)
{
checkTag(input.readLittleInt(), NORM);
int[] intNormals = input.readPackedInts(vcount, Mesh.CTM_NORMAL_ELEMENT_COUNT, false);
return(restoreNormals(intNormals, vertices, indices, normalPrecision));
}
public override Mesh decode(MeshInfo minfo, CtmInputStream input)
{
int vc = minfo.getVertexCount();
checkTag(input.readLittleInt(), MG2_HEADER_TAG);
float vertexPrecision = input.readLittleFloat();
float normalPrecision = input.readLittleFloat();
Grid grid = Grid.fromStream(input);
if(!grid.checkIntegrity()) {
throw new InvalidDataException("The vertex size grid is corrupt!");
}
float[] vertices = readVertices(input, grid, vc, vertexPrecision);
int[] indices = readIndices(input, minfo.getTriangleCount(), vc);
float[] normals = null;
if (minfo.hasNormals()) {
normals = readNormals(input, vertices, indices, normalPrecision, vc);
}
AttributeData[] uvData = new AttributeData[minfo.getUvMapCount()];
for (int i = 0; i < uvData.Length; i++) {
uvData[i] = readUvData(input, vc);
}
AttributeData[] attributs = new AttributeData[minfo.getAttrCount()];
for (int i = 0; i < attributs.Length; i++) {
attributs[i] = readAttribute(input, vc);
}
return new Mesh(vertices, normals, indices, uvData, attributs);
}
protected virtual int[] readIntArray(CtmInputStream input, int count, int size, bool signed)
{
int[] array = new int[count * size];
for (int i = 0; i < array.Length; i++) {
array[i] = input.readLittleInt();
}
return array;
}
protected virtual int[] readIntArray(CtmInputStream input, int count, int size, bool signed)
{
int[] array = new int[count * size];
for (int i = 0; i < array.Length; i++)
{
array[i] = input.readLittleInt();
}
return(array);
}
private int[] readIndices(CtmInputStream input, int triCount, int vcount)
{
checkTag(input.readLittleInt(), INDX);
int[] indices = input.readPackedInts(triCount, 3, false);
restoreIndices(triCount, indices);
foreach(int i in indices) {
if (i > vcount) {
throw new InvalidDataException("One element of the indice array "
+ "points to a none existing vertex(id: " + i + ")");
}
}
return indices;
}
private AttributeData readAttribute(CtmInputStream input, int vc)
{
checkTag(input.readLittleInt(), ATTR);
String name = input.readString();
float precision = input.readLittleFloat();
if (precision <= 0f) {
throw new InvalidDataException("An attribute precision value <= 0.0 was read");
}
int[] intData = input.readPackedInts(vc, Mesh.CTM_ATTR_ELEMENT_COUNT, true);
float[] data = restoreAttribs(precision, intData);
return new AttributeData(name, null, precision, data);
}
public Mesh decode()
{
if (decoded)
{
throw new Exception("Ctm File got already decoded");
}
decoded = true;
if (input.readLittleInt() != OCTM)
{
throw new BadFormatException("The CTM file doesn't start with the OCTM tag!");
}
int formatVersion = input.readLittleInt();
int methodTag = input.readLittleInt();
MeshInfo mi = new MeshInfo(input.readLittleInt(), //vertex count
input.readLittleInt(), //triangle count
input.readLittleInt(), //uvmap count
input.readLittleInt(), //attribute count
input.readLittleInt()); //flags
comment = input.readString();
// Uncompress from stream
Mesh m = null;
foreach (MeshDecoder md in DECODER)
{
if (md.isFormatSupported(methodTag, formatVersion))
{
m = md.decode(mi, input);
break;
}
}
if (m == null)
{
throw new IOException("No sutible decoder found for Mesh of compression type: " + unpack(methodTag) + ", version " + formatVersion);
}
// Check mesh integrity
m.checkIntegrity();
return(m);
}
private int[] readIndices(CtmInputStream input, int triCount, int vcount)
{
checkTag(input.readLittleInt(), INDX);
int[] indices = input.readPackedInts(triCount, 3, false);
restoreIndices(triCount, indices);
foreach (int i in indices)
{
if (i > vcount)
{
throw new InvalidDataException("One element of the indice array "
+ "points to a none existing vertex(id: " + i + ")");
}
}
return(indices);
}
private AttributeData readAttribute(CtmInputStream input, int vc)
{
checkTag(input.readLittleInt(), ATTR);
String name = input.readString();
float precision = input.readLittleFloat();
if (precision <= 0f)
{
throw new InvalidDataException("An attribute precision value <= 0.0 was read");
}
int[] intData = input.readPackedInts(vc, Mesh.CTM_ATTR_ELEMENT_COUNT, true);
float[] data = restoreAttribs(precision, intData);
return(new AttributeData(name, null, precision, data));
}
private AttributeData readUvData(CtmInputStream input, int vcount)
{
checkTag(input.readLittleInt(), TEXC);
String name = input.readString();
String material = input.readString();
float precision = input.readLittleFloat();
if (precision <= 0f)
{
throw new InvalidDataException("A uv precision value <= 0.0 was read");
}
int[] intCoords = input.readPackedInts(vcount, Mesh.CTM_UV_ELEMENT_COUNT, true);
float[] data = restoreUVCoords(precision, intCoords);
return(new AttributeData(name, material, precision, data));
}
protected virtual int[] readIntArray(CtmInputStream input, int count, int size, bool signed)
{
//int[] array = new int[count * size];
//for (int i = 0; i < array.Length; i++) {
// array[i] = input.readLittleInt();
//}
//return array;
intArray.Clear();
int length = count * size;
for (int i = 0; i < length; i++)
{
intArray.Add(input.readLittleInt());
}
return(intArray.ToArray());
}
public override Mesh decode(MeshInfo minfo, CtmInputStream input)
{
int vc = minfo.getVertexCount();
checkTag(input.readLittleInt(), MG2_HEADER_TAG);
float vertexPrecision = input.readLittleFloat();
float normalPrecision = input.readLittleFloat();
Grid grid = Grid.fromStream(input);
if (!grid.checkIntegrity())
{
throw new InvalidDataException("The vertex size grid is corrupt!");
}
float[] vertices = readVertices(input, grid, vc, vertexPrecision);
int[] indices = readIndices(input, minfo.getTriangleCount(), vc);
float[] normals = null;
if (minfo.hasNormals())
{
normals = readNormals(input, vertices, indices, normalPrecision, vc);
}
AttributeData[] uvData = new AttributeData[minfo.getUvMapCount()];
for (int i = 0; i < uvData.Length; i++)
{
uvData[i] = readUvData(input, vc);
}
AttributeData[] attributs = new AttributeData[minfo.getAttrCount()];
for (int i = 0; i < attributs.Length; i++)
{
attributs[i] = readAttribute(input, vc);
}
return(new Mesh(vertices, normals, indices, uvData, attributs));
}
private AttributeData readUvData(CtmInputStream input, int vcount)
{
checkTag(input.readLittleInt(), TEXC);
String name = input.readString();
String material = input.readString();
float precision = input.readLittleFloat();
if (precision <= 0f) {
throw new InvalidDataException("A uv precision value <= 0.0 was read");
}
int[] intCoords = input.readPackedInts(vcount, Mesh.CTM_UV_ELEMENT_COUNT, true);
float[] data = restoreUVCoords(precision, intCoords);
return new AttributeData(name, material, precision, data);
}
private float[] readNormals(CtmInputStream input, float[] vertices, int[] indices,
float normalPrecision, int vcount)
{
checkTag(input.readLittleInt(), NORM);
int[] intNormals = input.readPackedInts(vcount, Mesh.CTM_NORMAL_ELEMENT_COUNT, false);
return restoreNormals(intNormals, vertices, indices, normalPrecision);
}
private float[] readVertices(CtmInputStream input, Grid grid, int vcount, float precision)
{
checkTag(input.readLittleInt(), VERT);
int[] intVertices = input.readPackedInts(vcount, Mesh.CTM_POSITION_ELEMENT_COUNT, false);
checkTag(input.readLittleInt(), GIDX);
int[] gridIndices = input.readPackedInts(vcount, 1, false);
for (int i = 1; i < vcount; i++) {
gridIndices[i] += gridIndices[i - 1];
}
return CommonAlgorithm.restoreVertices(intVertices, gridIndices, grid, precision);
}
