public static void PlaceTextureOnFace(Face face, ImageBuffer textureToUse) { FaceTextureData faceData = FaceTextureData.Get(face); faceData.Textures.Add(textureToUse); int count = 0; foreach (FaceEdge faceEdge in face.FaceEdges()) { FaceEdgeTextureUvData edgeUV = FaceEdgeTextureUvData.Get(faceEdge); switch (count++) { case 0: edgeUV.TextureUV.Add(new Vector2(0, 0)); break; case 1: edgeUV.TextureUV.Add(new Vector2(1, 0)); break; case 2: edgeUV.TextureUV.Add(new Vector2(1, 1)); break; case 3: edgeUV.TextureUV.Add(new Vector2(0, 1)); break; } } }
public static void RemoveTexture(this Face face, ImageBuffer texture, int index) { face.ContainingMesh.FaceTexture.Remove((face, index)); foreach (FaceEdge faceEdge in face.FaceEdges()) { face.ContainingMesh.TextureUV.Remove((faceEdge, index)); } }
public static void PlaceTextureOnFace(this Face face, ImageBuffer textureToUse, Matrix4X4 textureCoordinateMapping) { face.SetTexture(0, textureToUse); foreach (FaceEdge faceEdge in face.FaceEdges()) { Vector3 edgeStartPosition = faceEdge.FirstVertex.Position; Vector3 textureUv = Vector3.Transform(edgeStartPosition, textureCoordinateMapping); faceEdge.SetUv(0, new Vector2(textureUv)); } face.ContainingMesh.MarkAsChanged(); }
public FaceEdge GetFaceEdge(Face faceToFindFaceEdgeFor) { foreach (FaceEdge faceEdge in faceToFindFaceEdgeFor.FaceEdges()) { if (faceEdge.ContainingFace == faceToFindFaceEdgeFor) { return(faceEdge); } } return(null); }
public static Matrix4X4 GetMaxFaceProjection(Face face, ImageBuffer textureToUse, Matrix4X4?initialTransform = null) { // If not set than make it identity var firstTransform = initialTransform == null ? Matrix4X4.Identity : (Matrix4X4)initialTransform; var textureCoordinateMapping = Matrix4X4.CreateRotation(new Quaternion(face.Normal, Vector3.UnitZ)); var bounds = RectangleDouble.ZeroIntersection; foreach (FaceEdge faceEdge in face.FaceEdges()) { var edgeStartPosition = faceEdge.FirstVertex.Position; var textureUv = Vector3.Transform(edgeStartPosition, textureCoordinateMapping); bounds.ExpandToInclude(new Vector2(textureUv)); } var centering = Matrix4X4.CreateTranslation(new Vector3(-bounds.Left, -bounds.Bottom, 0)); var scaling = Matrix4X4.CreateScale(new Vector3(1 / bounds.Width, 1 / bounds.Height, 1)); return(textureCoordinateMapping * firstTransform * centering * scaling); }
public FaceEdge GetFaceEdge(Face faceToFindFaceEdgeFor) { foreach (FaceEdge faceEdge in faceToFindFaceEdgeFor.FaceEdges()) { if (faceEdge.containingFace == faceToFindFaceEdgeFor) { return faceEdge; } } return null; }
public void SplitFace(Face faceToSplit, Vertex splitStartVertex, Vertex splitEndVertex, out MeshEdge meshEdgeCreatedDuringSplit, out Face faceCreatedDuringSplit) { if (!ContainsVertex(splitStartVertex) || !ContainsVertex(splitEndVertex)) { throw new Exception("The mesh must contain the vertices you intend to split between."); } // we may want to be able to double up an edge for some operations (we'll have to see). if (FindMeshEdges(splitStartVertex, splitEndVertex).Count > 0) { // this also ensures that the face is more than 2 sided. throw new Exception("You cannot split a face on an existing edge."); } FaceEdge faceEdgeAfterSplitStart = null; FaceEdge faceEdgeAfterSplitEnd = null; int count = 0; foreach (FaceEdge faceEdge in faceToSplit.FaceEdges()) { if (faceEdge.firstVertex == splitStartVertex) { faceEdgeAfterSplitStart = faceEdge; count++; } else if (faceEdge.firstVertex == splitEndVertex) { faceEdgeAfterSplitEnd = faceEdge; count++; } if (count == 2) { break; // stop if we found both face edges } } meshEdgeCreatedDuringSplit = CreateMeshEdge(splitStartVertex, splitEndVertex); faceCreatedDuringSplit = new Face(faceToSplit); faces.Add(faceCreatedDuringSplit); FaceEdge newFaceEdgeExistingFace = new FaceEdge(faceToSplit, meshEdgeCreatedDuringSplit, splitStartVertex); FaceEdge newFaceEdgeForNewFace = new FaceEdge(faceCreatedDuringSplit, meshEdgeCreatedDuringSplit, splitEndVertex); // get the new edges injected into the existing loop, spliting it in two. newFaceEdgeExistingFace.prevFaceEdge = faceEdgeAfterSplitStart.prevFaceEdge; newFaceEdgeForNewFace.prevFaceEdge = faceEdgeAfterSplitEnd.prevFaceEdge; faceEdgeAfterSplitStart.prevFaceEdge.nextFaceEdge = newFaceEdgeExistingFace; faceEdgeAfterSplitEnd.prevFaceEdge.nextFaceEdge = newFaceEdgeForNewFace; newFaceEdgeExistingFace.nextFaceEdge = faceEdgeAfterSplitEnd; newFaceEdgeForNewFace.nextFaceEdge = faceEdgeAfterSplitStart; faceEdgeAfterSplitStart.prevFaceEdge = newFaceEdgeForNewFace; faceEdgeAfterSplitEnd.prevFaceEdge = newFaceEdgeExistingFace; // make sure the first face edge of each face is valid faceToSplit.firstFaceEdge = newFaceEdgeExistingFace; faceCreatedDuringSplit.firstFaceEdge = newFaceEdgeForNewFace; // make sure the FaceEdges of the new face all point to the new face. foreach (FaceEdge faceEdge in faceCreatedDuringSplit.firstFaceEdge.NextFaceEdges()) { faceEdge.containingFace = faceCreatedDuringSplit; } newFaceEdgeExistingFace.AddToRadialLoop(meshEdgeCreatedDuringSplit); newFaceEdgeForNewFace.AddToRadialLoop(meshEdgeCreatedDuringSplit); }