private static EditableBoneWeight Lerp(EditableBoneWeight first, EditableBoneWeight second, float t) { EditableBoneWeight result = new EditableBoneWeight(); foreach (BoneWeightChannel channel in first) { if (!channel.enabled) { continue; } BoneWeightData data = channel.boneWeightData; data.weight *= (1f - t); if (data.weight > 0f) { result.AddChannel(data, true); } } foreach (BoneWeightChannel channel in second) { if (!channel.enabled) { continue; } BoneWeightData data = channel.boneWeightData; data.weight *= t; if (data.weight > 0f) { result.AddChannel(data, true); } } result.UnifyChannelsWithSameBoneIndex(); if (result.GetWeightSum() > 1f) { result.NormalizeChannels(); } result.FilterChannels(0f); result.ClampChannels(4, true); return(result); }
public static void SmoothWeights(BoneWeight[] boneWeightIn, IList <int> indices, int boneCount, BoneWeight[] boneWeightOut) { Debug.Assert(boneWeightIn != null); Debug.Assert(boneWeightOut != null); Debug.Assert(boneWeightIn != boneWeightOut); Debug.Assert(boneWeightIn.Length == boneWeightOut.Length); PrepareTempBuffers(boneWeightIn.Length, boneCount); EditableBoneWeight editableBoneWeight = new EditableBoneWeight(); for (int i = 0; i < boneWeightIn.Length; ++i) { editableBoneWeight.SetFromBoneWeight(boneWeightIn[i]); for (int channelIndex = 0; channelIndex < editableBoneWeight.GetChannelCount(); ++channelIndex) { if (editableBoneWeight.IsChannelEnabled(channelIndex)) { BoneWeightData boneWeightData = editableBoneWeight.GetBoneWeightData(channelIndex); m_DataInTemp[i, boneWeightData.boneIndex] = boneWeightData.weight; } } } SmoothPerVertexData(indices, m_DataInTemp, m_DataOutTemp); for (int i = 0; i < boneWeightIn.Length; ++i) { editableBoneWeight.Clear(); for (int boneIndex = 0; boneIndex < boneCount; ++boneIndex) { float weight = m_DataOutTemp[i, boneIndex]; int boneIndex2 = weight > 0f ? boneIndex : 0; editableBoneWeight.AddChannel(new BoneWeightData(boneIndex2, weight), weight > 0); } editableBoneWeight.ClampChannels(4); editableBoneWeight.NormalizeChannels(); boneWeightOut[i] = editableBoneWeight.ToBoneWeight(false); } }
private void CreateVertex(Vector2 position, int edgeIndex) { position = MeshModuleUtility.ClampPositionToRect(position, spriteMeshData.frame); undoObject.RegisterCompleteObjectUndo("Create Vertex"); BoneWeight boneWeight = new BoneWeight(); Vector3Int indices; Vector3 barycentricCoords; if (spriteMeshData.FindTriangle(position, out indices, out barycentricCoords)) { EditableBoneWeight bw1 = spriteMeshData.vertices[indices.x].editableBoneWeight; EditableBoneWeight bw2 = spriteMeshData.vertices[indices.y].editableBoneWeight; EditableBoneWeight bw3 = spriteMeshData.vertices[indices.z].editableBoneWeight; EditableBoneWeight result = new EditableBoneWeight(); foreach (BoneWeightChannel channel in bw1) { if (!channel.enabled) { continue; } BoneWeightData data = channel.boneWeightData; data.weight *= barycentricCoords.x; if (data.weight > 0f) { result.AddChannel(data, true); } } foreach (BoneWeightChannel channel in bw2) { if (!channel.enabled) { continue; } BoneWeightData data = channel.boneWeightData; data.weight *= barycentricCoords.y; if (data.weight > 0f) { result.AddChannel(data, true); } } foreach (BoneWeightChannel channel in bw3) { if (!channel.enabled) { continue; } BoneWeightData data = channel.boneWeightData; data.weight *= barycentricCoords.z; if (data.weight > 0f) { result.AddChannel(data, true); } } result.UnifyChannelsWithSameBoneIndex(); result.FilterChannels(0f); result.ClampChannels(4, true); boneWeight = result.ToBoneWeight(true); } else if (edgeIndex != -1) { Edge edge = spriteMeshData.edges[edgeIndex]; Vector2 pos1 = spriteMeshData.vertices[edge.index1].position; Vector2 pos2 = spriteMeshData.vertices[edge.index2].position; Vector2 dir1 = (position - pos1); Vector2 dir2 = (pos2 - pos1); float t = Vector2.Dot(dir1, dir2.normalized) / dir2.magnitude; t = Mathf.Clamp01(t); BoneWeight bw1 = spriteMeshData.vertices[edge.index1].editableBoneWeight.ToBoneWeight(true); BoneWeight bw2 = spriteMeshData.vertices[edge.index2].editableBoneWeight.ToBoneWeight(true); boneWeight = EditableBoneWeightUtility.Lerp(bw1, bw2, t); } spriteMeshData.CreateVertex(position, edgeIndex); spriteMeshData.vertices[spriteMeshData.vertices.Count - 1].editableBoneWeight.SetFromBoneWeight(boneWeight); spriteMeshData.Triangulate(triangulator); }