public static VertexPosNormTex Convert(IPVertexStruct *pVertex)
{
var pTexCoords = Irit.AttrGetUVAttrib(pVertex->Attr, IritStrings.uvvals);
return(new VertexPosNormTex(
Convert(&pVertex->Coord),
-Convert(&pVertex->Normal),
pTexCoords != (void *)0 ? *(Vector2 *)pTexCoords : Vector2.Zero));
}
private IAsset BuildAsset(AssetLoadInfo loadInfo)
{
// todo: load from memory
/* Get the data files: */
Irit.IPSetFlattenObjects(0);
var pFileName = Marshal.StringToHGlobalAnsi(loadInfo.LoadPath);
var pObjects = Irit.IPGetDataFiles((byte **)&pFileName, 1, TRUE, FALSE);
Marshal.FreeHGlobal(pFileName);
if (pObjects == NULL)
{
throw new Exception($"Failed to load '{loadInfo.LoadPath}' as an ITD model.");
}
pObjects = Irit.IPResolveInstances(pObjects);
var viewMat = new IrtHmgnMatType
{
private static AssetLoadResultByLoader Load(AssetLoadInfo loadInfo, void *dicomManager)
{
int width, height, depth;
CheckSuccess(DicomProject.AnalyzerGetDimensions(dicomManager, 1, &width, &height, &depth));
var lowerBuffer = new byte[width * height];
var higherBuffer = new byte[width * height];
var vertexList = new List <VertexPosNormTex>();
fixed(byte *pBuffer = higherBuffer)
{
int bufferSize = higherBuffer.Length;
int bytesWritten;
CheckSuccess(DicomProject.AnalyzerGetMonochromePixelDataBufferOfSlice(dicomManager, 1, pBuffer, &bufferSize, &bytesWritten));
}
for (int z = 1; z < depth; z++)
{
CodingHelper.Swap(ref lowerBuffer, ref higherBuffer);
fixed(byte *pBuffer = higherBuffer)
{
int bufferSize = higherBuffer.Length;
int bytesWritten;
CheckSuccess(DicomProject.AnalyzerGetMonochromePixelDataBufferOfSlice(dicomManager, z + 1, pBuffer, &bufferSize, &bytesWritten));
}
for (int y = 0; y < height - 1; y++)
{
for (int x = 0; x < width - 1; x++)
{
var vx = (100f / width) * x - 50f;
var vy = (100f / height) * y - 50f;
var vz = (100f / depth) * z - 50f;
var yStride = width;
var mcCube = new MCCubeCornerScalarStruct
{
CubeDim = new IrtPtType(100.0 / width, 100.0 / height, 100.0 / depth),
Vrtx0Lctn = new IrtPtType(vx, vy, vz)
};
mcCube.Corners[0] = UNormToDouble(lowerBuffer[yStride * y + x]);
mcCube.Corners[1] = UNormToDouble(lowerBuffer[yStride * y + (x + 1)]);
mcCube.Corners[2] = UNormToDouble(lowerBuffer[yStride * (y + 1) + (x + 1)]);
mcCube.Corners[3] = UNormToDouble(lowerBuffer[yStride * (y + 1) + x]);
mcCube.Corners[4] = UNormToDouble(higherBuffer[yStride * y + x]);
mcCube.Corners[5] = UNormToDouble(higherBuffer[yStride * y + (x + 1)]);
mcCube.Corners[6] = UNormToDouble(higherBuffer[yStride * (y + 1) + (x + 1)]);
mcCube.Corners[7] = UNormToDouble(higherBuffer[yStride * (y + 1) + x]);
// todo: use ref instead
EstimateGradient(&mcCube);
var MCPolys = Irit.MCThresholdCube(&mcCube, 0.5);
while (MCPolys != null)
{
var texCoord = new Vector2((float)x / width, (float)z / depth);
var vertex0 = MCPolys->GetClarityVertex(0, texCoord);
var vertexCurr = MCPolys->GetClarityVertex(1, texCoord);
for (var i = 2; i < MCPolys->NumOfVertices; i++)
{
var vertexPrev = vertexCurr;
vertexCurr = MCPolys->GetClarityVertex(i, texCoord);
vertexList.Add(vertex0);
vertexList.Add(vertexPrev);
vertexList.Add(vertexCurr);
}
//Irit.IritFree(MCPolys);
MCPolys = MCPolys->Pnext;
}
}
}
}
var pack = new ResourcePack(ResourceVolatility.Immutable);
var rawVerticesData = new RawDataResource(ResourceVolatility.Immutable, vertexList.Count * sizeof(VertexPosNormTex));
pack.AddSubresource("VertexData", rawVerticesData);
var pRawData = (VertexPosNormTex *)rawVerticesData.Map();
for (int i = 0; i < vertexList.Count; i++)
{
pRawData[i] = vertexList[i];
}
rawVerticesData.Unmap(true);
var vertexSet = new FlexibleModelVertexSet(ResourceVolatility.Immutable, new[] { new RawDataResSubrange(rawVerticesData, 0) }, VertexPosNormTex.GetElementsInfos(0), null);
pack.AddSubresource("ModelVertexSet", vertexSet);
var modelPart = new FlexibleModelPart
{
IndexCount = vertexList.Count,
PrimitiveTopology = FlexibleModelPrimitiveTopology.TriangleList,
VertexSetIndex = 0
};
var model = new FlexibleModel(ResourceVolatility.Immutable, new[] { vertexSet }, new[] { modelPart }, new Sphere(Vector3.Zero, 50));
pack.AddSubresource("Model", model);
pack.MainSubresource = model;
CheckSuccess(DicomProject.AnalyzerKillDicomAnalyzer(&dicomManager));
// todo: calculate hash honestly
var hash = AssetHashMd5.Random(new Random());
var fileName = Path.GetFileName(loadInfo.LoadPath);
var asset = new Asset(loadInfo.AssetName, pack, AssetStorageType.ReferenceOriginal, hash, loadInfo.ReferencePath, fileName);
return(AssetLoadResultByLoader.Success(asset));
}
