Question

我一直在尝试使用Assimp在OpenGl中对模型进行动画处理。我尝试的结果是 this。

加载骨骼：

List<Bone> getBones(AIMesh mesh) {
    List<Bone> bones = new ArrayList<>();
    for (int i = 0; i < mesh.mNumBones(); i++) {
        AIBone aiBone = AIBone.create(mesh.mBones().get(i));
        Bone bone = new Bone(aiBone.mName().dataString());
        bone.setOffset(aiMatrixToMatrix(aiBone.mOffsetMatrix()).transpose());
        bones.add(bone);
    }
    return bones;
}

加载顶点：

VertexData processVertices(AIMesh mesh) {
    float[] weights = null;
    int[] boneIds = null;
    float[] vertices = new float[mesh.mNumVertices() * 3];
    boolean calculateBones = mesh.mNumBones() != 0;

    if (calculateBones) {
        weights = new float[mesh.mNumVertices() * 4];
        boneIds = new int[mesh.mNumVertices() * 4];
    }

    int i = 0;
    int k = 0;
    for (AIVector3D vertex : mesh.mVertices()) {
        vertices[i++] = vertex.x();
        vertices[i++] = vertex.y();
        vertices[i++] = vertex.z();

        //bone data if any
        if (calculateBones) {
            for (int j = 0; j < mesh.mNumBones(); j++) {
                AIBone bone = AIBone.create(mesh.mBones().get(j));
                for (AIVertexWeight weight : bone.mWeights()) {
                    if (weight.mVertexId() == i - 3) {
                        k++;
                        boneIds[k] = j;
                        weights[k] = weight.mWeight();
                    }
                }
            }
        }
    }

我在做什么错。绑定姿势是否需要所有矩阵，还是可以仅使用偏移量进行测试？

Answer 1

如果我让您的代码正确，那么您就不会得到面孔的直觉，对吧？如果我知道正确使用的概念，则需要遍历网格的各个面以获得正确的指令。

Assimp骨骼动画变成三角形混乱

1 个答案: