public void generateTexAndMesh(string parentFolder, string savePath, string dataFileName)
{
int numBones = animData.totalBoneNum;
// 重新生成mesh
rebuildAllMeshes(savePath, parentFolder);
// 将骨骼矩阵写入纹理
var tex2D = new Texture2D(animData.texWidth, animData.texHeight, TextureFormat.RGBA32, false);
tex2D.filterMode = FilterMode.Point;
int clipIdx = 0;
int pixelIdx = 0;
Vector2Int pixelUv;
GpuSkinningAnimClip boneAnimation = null;
AnimationClip clip = null;
List <Matrix4x4> boneMatrices = null;
for (clipIdx = 0; clipIdx < animClips.Length; ++clipIdx)
{
boneAnimation = animData.clips[clipIdx];
clip = animClips[clipIdx];
for (int frameIndex = 0; frameIndex < boneAnimation.Length(); frameIndex++)
{
boneMatrices = samplerAnimationClipBoneMatrices(curGameObject, clip, (float)frameIndex / clip.frameRate);
for (int boneIndex = 0; boneIndex < numBones; boneIndex++)
{
Matrix4x4 matrix = boneMatrices[boneIndex];
Quaternion rotation = ToQuaternion(matrix);
Vector3 scale = matrix.lossyScale;
float sx = Mathf.Floor(scale.x * 100.0f);
float sy = Mathf.Floor(scale.y * 100.0f);
float sz = Mathf.Floor(scale.z * 100.0f);
if ((sx - sy) > 5.0f ||
(sx - sz) > 5.0f ||
(sy - sz) > 5.0f)
{
Transform remapBone = null;
foreach (var key in boneIds.Keys)
{
if (boneIds[key] == boneIndex)
{
remapBone = key;
break;
}
}
string strLog = string.Format("AnimClip scale X Y Z not equal: {0} -> {1} {2}", curGameObject.name, boneAnimation.name, remapBone.transform.name);
Warning("AnimClip scale", strLog);
}
pixelUv = convertPixel2UV(pixelIdx++);
Color color1 = convertFloat16Bytes2Color(convertFloat32toFloat16Bytes(rotation.x), convertFloat32toFloat16Bytes(rotation.y));
tex2D.SetPixel(pixelUv.x, pixelUv.y, color1);
pixelUv = convertPixel2UV(pixelIdx++);
Color color2 = convertFloat16Bytes2Color(convertFloat32toFloat16Bytes(rotation.z), convertFloat32toFloat16Bytes(rotation.w));
tex2D.SetPixel(pixelUv.x, pixelUv.y, color2);
pixelUv = convertPixel2UV(pixelIdx++);
Color color3 = convertFloat16Bytes2Color(convertFloat32toFloat16Bytes(matrix.GetColumn(3).x), convertFloat32toFloat16Bytes(matrix.GetColumn(3).y));
tex2D.SetPixel(pixelUv.x, pixelUv.y, color3);
pixelUv = convertPixel2UV(pixelIdx++);
Color color4 = convertFloat16Bytes2Color(convertFloat32toFloat16Bytes(matrix.GetColumn(3).z), convertFloat32toFloat16Bytes(Mathf.Clamp01(matrix.lossyScale.magnitude)));
tex2D.SetPixel(pixelUv.x, pixelUv.y, color4);
//Debug.Log("==============frameIndex========start========"+ frameIndex);
//Debug.Log("=======rotation==========="+ rotation.x+", "+ rotation.y+", " + rotation.z +", "+rotation.w);
//Vector4 rrrr = convertColors2Halfs(color1, color2);
//Debug.Log("=======rotation===22======" + rrrr.x + ", " + rrrr.y + ", " + rrrr.z + ", " + rrrr.w);
//Debug.Log("=======translation===========" + matrix.GetColumn(3).x + ", " + matrix.GetColumn(3).y + ", " + matrix.GetColumn(3).z + ", " + Mathf.Clamp01(matrix.lossyScale.magnitude));
//Vector4 ttttt = convertColors2Halfs(color3, color4);
//Debug.Log("=======translation===22======" + ttttt.x + ", " + ttttt.y + ", " + ttttt.z + ", " + ttttt.w);
//Debug.Log("==============frameIndex========end========" + frameIndex);
}
}
}
tex2D.Apply();
// 导出动画纹理
animTexturePath = savePath + dataFileName.Replace(".asset", "") + ".png";
exportTexture(tex2D, animTexturePath);
setAnimationTextureProperties(animTexturePath);
// 存储
string filePath = savePath + dataFileName;
AssetDatabase.CreateAsset(animData, filePath);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
}
public void generateTexAndMesh_verticesAnim(string parentFolder, string savePath, string dataFileName)
{
// 重新生成mesh(这一步生成的mesh还是带骨骼indices和骨骼权重的，但顶点动画是不需要这些数据的，后面会删掉)
rebuildAllMeshes(savePath, parentFolder);
// 将骨骼矩阵写入纹理
var tex2D = new Texture2D(animData.texWidth, animData.texHeight, TextureFormat.RGB24, false);
tex2D.filterMode = FilterMode.Point;
int clipIdx = 0;
int pixelIdx = 0;
int totalFrameIndex = 0;
GpuSkinningAnimClip boneAnimation = null;
AnimationClip clip = null;
List <Matrix4x4> boneMatrices = null;
Vector4 boneIndices, boneWeights;
Matrix4x4 boneMatrix0, boneMatrix1, boneMatrix2, boneMatrix3;
Vector3 src_vertex;
Vector4 vertex, position;
for (clipIdx = 0; clipIdx < animClips.Length; ++clipIdx)
{
boneAnimation = animData.clips[clipIdx];
clip = animClips[clipIdx];
for (int frameIndex = 0; frameIndex < boneAnimation.Length(); frameIndex++)
{
boneMatrices = samplerAnimationClipBoneMatrices(curGameObject, clip, (float)frameIndex / (clip.frameRate / compression));
for (int vertexIndex = 0; vertexIndex < instMesh.vertices.Length; ++vertexIndex)
{
src_vertex = instMesh.vertices[vertexIndex];
vertex = new Vector4(src_vertex.x, src_vertex.y, src_vertex.z, 1);
boneIndices = boneIndicesList[vertexIndex];
boneWeights = boneWeightsList[vertexIndex];
boneMatrix0 = boneMatrices[Mathf.RoundToInt(boneIndices.x)];
boneMatrix1 = boneMatrices[Mathf.RoundToInt(boneIndices.y)];
boneMatrix2 = boneMatrices[Mathf.RoundToInt(boneIndices.z)];
boneMatrix3 = boneMatrices[Mathf.RoundToInt(boneIndices.w)];
matrixMulFloat(ref boneMatrix0, boneWeights.x);
matrixMulFloat(ref boneMatrix1, boneWeights.y);
matrixMulFloat(ref boneMatrix2, boneWeights.z);
matrixMulFloat(ref boneMatrix3, boneWeights.w);
position = (matrixAddMatrix(matrixAddMatrix(boneMatrix0, boneMatrix1), matrixAddMatrix(boneMatrix2, boneMatrix3))) * vertex;
Color[] colors = convertThreeFloat16Bytes2TwoColor(convertFloat32toFloat16Bytes(position.x), convertFloat32toFloat16Bytes(position.y), convertFloat32toFloat16Bytes(position.z));
tex2D.SetPixel(vertexIndex, totalFrameIndex * 2, colors[0]);
tex2D.SetPixel(vertexIndex, totalFrameIndex * 2 + 1, colors[1]);
}
++totalFrameIndex;
}
}
tex2D.Apply();
// 导出动画纹理
animTexturePath = savePath + dataFileName.Replace(".asset", "") + ".png";
exportTexture(tex2D, animTexturePath);
setAnimationTextureProperties(animTexturePath);
// 存储数据
string filePath = savePath + dataFileName;
AssetDatabase.CreateAsset(animData, filePath);
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
// 删除mesh的骨骼信息
instMesh.uv2 = null;
instMesh.uv3 = null;
// 添加mesh的顶点索引 (TODO: unity shader中是否可以直接获取？)
List <Vector4> indices = new List <Vector4>();
for (int vertexIndex = 0; vertexIndex < instMesh.vertices.Length; ++vertexIndex)
{
indices.Add(new Vector4(vertexIndex, vertexIndex, vertexIndex, vertexIndex));
}
instMesh.SetUVs(1, indices);
EditorUtility.SetDirty(instMesh);
AssetDatabase.Refresh();
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
}