Examples with IrPolygon com.jme3.scene.plugins.IrPolygon used on opensource projects

Example 1 with IrPolygon

use of com.jme3.scene.plugins.IrPolygon in project jmonkeyengine by jMonkeyEngine.

the class FbxMesh method toIRMesh.

/**
     * Convert FBXMesh to IRMesh.
     */
public IrMesh toIRMesh() {
    IrMesh newMesh = new IrMesh();
    newMesh.polygons = new IrPolygon[polygons.length];
    int polygonVertexIndex = 0;
    int positionIndex = 0;
    FbxLayer layer0 = layers[0];
    FbxLayer layer1 = layers.length > 1 ? layers[1] : null;
    for (int i = 0; i < polygons.length; i++) {
        FbxPolygon polygon = polygons[i];
        IrPolygon irPolygon = new IrPolygon();
        irPolygon.vertices = new IrVertex[polygon.indices.length];
        for (int j = 0; j < polygon.indices.length; j++) {
            positionIndex = polygon.indices[j];
            IrVertex irVertex = new IrVertex();
            irVertex.pos = positions[positionIndex];
            if (layer0 != null) {
                irVertex.norm = (Vector3f) layer0.getVertexData(FbxLayerElement.Type.Normal, i, polygonVertexIndex, positionIndex, 0);
                irVertex.tang = (Vector3f) layer0.getVertexData(FbxLayerElement.Type.Tangent, i, polygonVertexIndex, positionIndex, 0);
                irVertex.bitang = (Vector3f) layer0.getVertexData(FbxLayerElement.Type.Binormal, i, polygonVertexIndex, positionIndex, 0);
                irVertex.uv0 = (Vector2f) layer0.getVertexData(FbxLayerElement.Type.UV, i, polygonVertexIndex, positionIndex, 0);
                irVertex.color = (ColorRGBA) layer0.getVertexData(FbxLayerElement.Type.Color, i, polygonVertexIndex, positionIndex, 0);
                irVertex.material = (Integer) layer0.getVertexData(FbxLayerElement.Type.Material, i, polygonVertexIndex, positionIndex, 0);
                irVertex.smoothing = (Integer) layer0.getVertexData(FbxLayerElement.Type.Smoothing, i, polygonVertexIndex, positionIndex, 0);
            }
            if (layer1 != null) {
                irVertex.uv1 = (Vector2f) layer1.getVertexData(FbxLayerElement.Type.UV, i, polygonVertexIndex, positionIndex, 0);
            }
            if (boneIndices != null) {
                ArrayList<Integer> boneIndicesForVertex = boneIndices[positionIndex];
                ArrayList<Float> boneWeightsForVertex = boneWeights[positionIndex];
                if (boneIndicesForVertex != null) {
                    irVertex.boneWeightsIndices = toBoneWeightIndices(boneIndicesForVertex, boneWeightsForVertex);
                }
            }
            irPolygon.vertices[j] = irVertex;
            polygonVertexIndex++;
        }
        newMesh.polygons[i] = irPolygon;
    }
    // Ensure "inspection vertex" specifies that mesh has bone indices / weights
    if (boneIndices != null && newMesh.polygons[0].vertices[0] == null) {
        newMesh.polygons[0].vertices[0].boneWeightsIndices = new IrBoneWeightIndex[0];
    }
    return newMesh;
}

Example 2 with IrPolygon

use of com.jme3.scene.plugins.IrPolygon in project jmonkeyengine by jMonkeyEngine.

the class IrUtils method convertIrMeshToJmeMesh.

/**
     * Convert IrMesh to jME3 mesh.
     */
public static Mesh convertIrMeshToJmeMesh(IrMesh mesh) {
    Map<IrVertex, Integer> vertexToVertexIndex = new HashMap<IrVertex, Integer>();
    List<IrVertex> vertices = new ArrayList<IrVertex>();
    List<Integer> indexes = new ArrayList<Integer>();
    int vertexIndex = 0;
    for (IrPolygon polygon : mesh.polygons) {
        if (polygon.vertices.length != 3) {
            throw new UnsupportedOperationException("IrMesh must be triangulated first");
        }
        for (IrVertex vertex : polygon.vertices) {
            // Is this vertex already indexed?
            Integer existingIndex = vertexToVertexIndex.get(vertex);
            if (existingIndex == null) {
                // Not indexed yet, allocate index.
                indexes.add(vertexIndex);
                vertexToVertexIndex.put(vertex, vertexIndex);
                vertices.add(vertex);
                vertexIndex++;
            } else {
                // Index already allocated for this vertex, reuse it.
                indexes.add(existingIndex);
            }
        }
    }
    Mesh jmeMesh = new Mesh();
    jmeMesh.setMode(Mesh.Mode.Triangles);
    FloatBuffer posBuf = null;
    FloatBuffer normBuf = null;
    FloatBuffer tangBuf = null;
    FloatBuffer uv0Buf = null;
    FloatBuffer uv1Buf = null;
    ByteBuffer colorBuf = null;
    ByteBuffer boneIndices = null;
    FloatBuffer boneWeights = null;
    IndexBuffer indexBuf = null;
    IrVertex inspectionVertex = vertices.get(0);
    if (inspectionVertex.pos != null) {
        posBuf = BufferUtils.createVector3Buffer(vertices.size());
        jmeMesh.setBuffer(VertexBuffer.Type.Position, 3, posBuf);
    }
    if (inspectionVertex.norm != null) {
        normBuf = BufferUtils.createVector3Buffer(vertices.size());
        jmeMesh.setBuffer(VertexBuffer.Type.Normal, 3, normBuf);
    }
    if (inspectionVertex.tang4d != null) {
        tangBuf = BufferUtils.createFloatBuffer(vertices.size() * 4);
        jmeMesh.setBuffer(VertexBuffer.Type.Tangent, 4, tangBuf);
    }
    if (inspectionVertex.tang != null || inspectionVertex.bitang != null) {
        throw new IllegalStateException("Mesh is using 3D tangents, must be converted to 4D tangents first.");
    }
    if (inspectionVertex.uv0 != null) {
        uv0Buf = BufferUtils.createVector2Buffer(vertices.size());
        jmeMesh.setBuffer(VertexBuffer.Type.TexCoord, 2, uv0Buf);
    }
    if (inspectionVertex.uv1 != null) {
        uv1Buf = BufferUtils.createVector2Buffer(vertices.size());
        jmeMesh.setBuffer(VertexBuffer.Type.TexCoord2, 2, uv1Buf);
    }
    if (inspectionVertex.color != null) {
        colorBuf = BufferUtils.createByteBuffer(vertices.size() * 4);
        jmeMesh.setBuffer(VertexBuffer.Type.Color, 4, colorBuf);
        jmeMesh.getBuffer(VertexBuffer.Type.Color).setNormalized(true);
    }
    if (inspectionVertex.boneWeightsIndices != null) {
        boneIndices = BufferUtils.createByteBuffer(vertices.size() * 4);
        boneWeights = BufferUtils.createFloatBuffer(vertices.size() * 4);
        jmeMesh.setBuffer(VertexBuffer.Type.BoneIndex, 4, boneIndices);
        jmeMesh.setBuffer(VertexBuffer.Type.BoneWeight, 4, boneWeights);
        //creating empty buffers for HW skinning 
        //the buffers will be setup if ever used.
        VertexBuffer weightsHW = new VertexBuffer(VertexBuffer.Type.HWBoneWeight);
        VertexBuffer indicesHW = new VertexBuffer(VertexBuffer.Type.HWBoneIndex);
        //setting usage to cpuOnly so that the buffer is not send empty to the GPU
        indicesHW.setUsage(VertexBuffer.Usage.CpuOnly);
        weightsHW.setUsage(VertexBuffer.Usage.CpuOnly);
        jmeMesh.setBuffer(weightsHW);
        jmeMesh.setBuffer(indicesHW);
    }
    if (vertices.size() >= 65536) {
        // too many verticies: use intbuffer instead of shortbuffer
        IntBuffer ib = BufferUtils.createIntBuffer(indexes.size());
        jmeMesh.setBuffer(VertexBuffer.Type.Index, 3, ib);
        indexBuf = new IndexIntBuffer(ib);
    } else {
        ShortBuffer sb = BufferUtils.createShortBuffer(indexes.size());
        jmeMesh.setBuffer(VertexBuffer.Type.Index, 3, sb);
        indexBuf = new IndexShortBuffer(sb);
    }
    jmeMesh.setStatic();
    int maxBonesPerVertex = -1;
    for (IrVertex vertex : vertices) {
        if (posBuf != null) {
            posBuf.put(vertex.pos.x).put(vertex.pos.y).put(vertex.pos.z);
        }
        if (normBuf != null) {
            normBuf.put(vertex.norm.x).put(vertex.norm.y).put(vertex.norm.z);
        }
        if (tangBuf != null) {
            tangBuf.put(vertex.tang4d.x).put(vertex.tang4d.y).put(vertex.tang4d.z).put(vertex.tang4d.w);
        }
        if (uv0Buf != null) {
            uv0Buf.put(vertex.uv0.x).put(vertex.uv0.y);
        }
        if (uv1Buf != null) {
            uv1Buf.put(vertex.uv1.x).put(vertex.uv1.y);
        }
        if (colorBuf != null) {
            colorBuf.putInt(vertex.color.asIntABGR());
        }
        if (boneIndices != null) {
            if (vertex.boneWeightsIndices != null) {
                if (vertex.boneWeightsIndices.length > 4) {
                    throw new UnsupportedOperationException("Mesh uses more than 4 weights per bone. " + "Call trimBoneWeights() to allieviate this");
                }
                for (int i = 0; i < vertex.boneWeightsIndices.length; i++) {
                    boneIndices.put((byte) (vertex.boneWeightsIndices[i].boneIndex & 0xFF));
                    boneWeights.put(vertex.boneWeightsIndices[i].boneWeight);
                }
                for (int i = 0; i < 4 - vertex.boneWeightsIndices.length; i++) {
                    boneIndices.put((byte) 0);
                    boneWeights.put(0f);
                }
            } else {
                boneIndices.putInt(0);
                boneWeights.put(0f).put(0f).put(0f).put(0f);
            }
            maxBonesPerVertex = Math.max(maxBonesPerVertex, vertex.boneWeightsIndices.length);
        }
    }
    for (int i = 0; i < indexes.size(); i++) {
        indexBuf.put(i, indexes.get(i));
    }
    jmeMesh.updateCounts();
    jmeMesh.updateBound();
    if (boneIndices != null) {
        jmeMesh.setMaxNumWeights(maxBonesPerVertex);
        jmeMesh.prepareForAnim(true);
        jmeMesh.generateBindPose(true);
    }
    return jmeMesh;
}