Java Code Examples for com.jme3.scene.mesh.IndexBuffer#size()

The following examples show how to use com.jme3.scene.mesh.IndexBuffer#size() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: CurvesHelper.java From MikuMikuStudio with BSD 2-Clause "Simplified" License

6 votes

/**
 * The method generates normal buffer for the created mesh of the curve.
 * 
 * @param indexes
 *            the indexes of the mesh points
 * @param points
 *            the mesh's points
 * @param smooth
 *            the flag indicating if the result is to be smooth or solid
 * @return normals buffer for the mesh
 */
private FloatBuffer generateNormals(IndexBuffer indexes, FloatBuffer points, boolean smooth) {
    Map<Integer, Vector3f> normalMap = new TreeMap<Integer, Vector3f>();
    Vector3f[] allVerts = BufferUtils.getVector3Array(points);

    for (int i = 0; i < indexes.size(); i += 3) {
        int index1 = indexes.get(i);
        int index2 = indexes.get(i + 1);
        int index3 = indexes.get(i + 2);

        Vector3f n = FastMath.computeNormal(allVerts[index1], allVerts[index2], allVerts[index3]);
        this.addNormal(n, normalMap, smooth, index1, index2, index3);
    }

    FloatBuffer normals = BufferUtils.createFloatBuffer(normalMap.size() * 3);
    for (Entry<Integer, Vector3f> entry : normalMap.entrySet()) {
        normals.put(entry.getValue().x);
        normals.put(entry.getValue().y);
        normals.put(entry.getValue().z);
    }
    return normals;
}

Example 2

Source File: BIHTree.java From MikuMikuStudio with BSD 2-Clause "Simplified" License

6 votes

public BIHTree(Mesh mesh, int maxTrisPerNode) {
    this.mesh = mesh;
    this.maxTrisPerNode = maxTrisPerNode;

    if (maxTrisPerNode < 1 || mesh == null) {
        throw new IllegalArgumentException();
    }

    bihSwapTmp = new float[9];

    FloatBuffer vb = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
    IndexBuffer ib = mesh.getIndexBuffer();
    if (ib == null) {
        ib = new VirtualIndexBuffer(mesh.getVertexCount(), mesh.getMode());
    } else if (mesh.getMode() != Mode.Triangles) {
        ib = new WrappedIndexBuffer(mesh);
    }

    numTris = ib.size() / 3;
    initTriList(vb, ib);
}

Example 3

Source File: BIHTree.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License

5 votes

public BIHTree(Mesh mesh, int maxTrisPerNode) {
    this.mesh = mesh;
    this.maxTrisPerNode = maxTrisPerNode;

    if (maxTrisPerNode < 1) {
        throw new IllegalArgumentException("maxTrisPerNode cannot be less than 1");
    }
    if (mesh == null) {
        throw new IllegalArgumentException("Mesh cannot be null");
    }

    bihSwapTmp = new float[9];

    VertexBuffer vBuffer = mesh.getBuffer(Type.Position);
    if(vBuffer == null){
        throw new IllegalArgumentException("A mesh should at least contain a Position buffer");
    }        
    IndexBuffer ib = mesh.getIndexBuffer();
    FloatBuffer vb = (FloatBuffer) vBuffer.getData();
    
    if (ib == null) {
        ib = new VirtualIndexBuffer(mesh.getVertexCount(), mesh.getMode());
    } else if (mesh.getMode() != Mode.Triangles) {
        ib = new WrappedIndexBuffer(mesh);
    }

    numTris = ib.size() / 3;
    initTriList(vb, ib);
}

Example 4

Source File: TangentBinormalGenerator.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License

5 votes

private static  List<VertexData> processTriangles(Mesh mesh,
        int[] index, Vector3f[] v, Vector2f[] t, boolean splitMirrored) {
    IndexBuffer indexBuffer = mesh.getIndexBuffer();
    FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
    if (mesh.getBuffer(Type.TexCoord) == null) {
        throw new IllegalArgumentException("Can only generate tangents for "
                + "meshes with texture coordinates");
    }
    
    FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
    
    List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);
    
    for (int i = 0; i < indexBuffer.size() / 3; i++) {
        for (int j = 0; j < 3; j++) {
            index[j] = indexBuffer.get(i * 3 + j);
            populateFromBuffer(v[j], vertexBuffer, index[j]);
            populateFromBuffer(t[j], textureBuffer, index[j]);
        }
        
        TriangleData triData = processTriangle(index, v, t);
        if(splitMirrored){
            triData.setIndex(index);
            triData.triangleOffset = i * 3 ;
        }
        vertices.get(index[0]).triangles.add(triData);
        vertices.get(index[1]).triangles.add(triData);
        vertices.get(index[2]).triangles.add(triData);
    }
    
    return vertices;
}

Example 5

Source File: SilentTangentBinormalGenerator.java From OpenRTS with MIT License

5 votes

private static List<VertexData> processTriangles(Mesh mesh, int[] index, Vector3f[] v, Vector2f[] t, boolean splitMirrored) {
	IndexBuffer indexBuffer = mesh.getIndexBuffer();
	FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
	if (mesh.getBuffer(Type.TexCoord) == null) {
		throw new IllegalArgumentException("Can only generate tangents for " + "meshes with texture coordinates");
	}

	FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();

	List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);

	for (int i = 0; i < indexBuffer.size() / 3; i++) {
		for (int j = 0; j < 3; j++) {
			index[j] = indexBuffer.get(i * 3 + j);
			populateFromBuffer(v[j], vertexBuffer, index[j]);
			populateFromBuffer(t[j], textureBuffer, index[j]);
		}

		TriangleData triData = processTriangle(index, v, t);
		if (splitMirrored) {
			triData.setIndex(index);
			triData.triangleOffset = i * 3;
		}
		if (triData != null) {
			vertices.get(index[0]).triangles.add(triData);
			vertices.get(index[1]).triangles.add(triData);
			vertices.get(index[2]).triangles.add(triData);
		}
	}

	return vertices;
}

Example 6

Source File: FloatToFixed.java From MikuMikuStudio with BSD 2-Clause "Simplified" License

5 votes

public static void compressIndexBuffer(Mesh mesh){
    int vertCount = mesh.getVertexCount();
    VertexBuffer vb = mesh.getBuffer(Type.Index);
    Format targetFmt;
    if (vb.getFormat() == Format.UnsignedInt && vertCount <= 0xffff){
        if (vertCount <= 256)
            targetFmt = Format.UnsignedByte;
        else
            targetFmt = Format.UnsignedShort;
    }else if (vb.getFormat() == Format.UnsignedShort && vertCount <= 0xff){
        targetFmt = Format.UnsignedByte;
    }else{
        return;
    }

    IndexBuffer src = mesh.getIndexBuffer();
    Buffer newBuf = VertexBuffer.createBuffer(targetFmt, vb.getNumComponents(), src.size());

    VertexBuffer newVb = new VertexBuffer(Type.Index);
    newVb.setupData(vb.getUsage(), vb.getNumComponents(), targetFmt, newBuf);
    mesh.clearBuffer(Type.Index);
    mesh.setBuffer(newVb);

    IndexBuffer dst = mesh.getIndexBuffer();
    for (int i = 0; i < src.size(); i++){
        dst.put(i, src.get(i));
    }
}

Example 7

Source File: TangentBinormalGenerator.java From MikuMikuStudio with BSD 2-Clause "Simplified" License

5 votes

private static VertexData[] processTriangles(Mesh mesh,
        int[] index, Vector3f[] v, Vector2f[] t)
{
    IndexBuffer indexBuffer =  mesh.getIndexBuffer();
    FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
    if (mesh.getBuffer(Type.TexCoord) == null)
        throw new IllegalArgumentException("Can only generate tangents for "
                                         + "meshes with texture coordinates");
    
    FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();

    VertexData[] vertices = initVertexData(vertexBuffer.capacity() / 3);

    for (int i = 0; i < indexBuffer.size() / 3; i++) {
        for (int j = 0; j < 3; j++) {
            index[j] = indexBuffer.get(i*3 + j);
            populateFromBuffer(v[j], vertexBuffer, index[j]);
            populateFromBuffer(t[j], textureBuffer, index[j]);
        }

        TriangleData triData = processTriangle(index, v, t);
        if (triData != null) {
            vertices[index[0]].triangles.add(triData);
            vertices[index[1]].triangles.add(triData);
            vertices[index[2]].triangles.add(triData);
        }
    }
    
    return vertices;
}

Example 8

Source File: TangentBinormalGenerator.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License

4 votes

private static List<VertexData> processTriangleStrip(Mesh mesh,
        int[] index, Vector3f[] v, Vector2f[] t) {
    IndexBuffer indexBuffer = mesh.getIndexBuffer();
    FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
    FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();
    
    List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);
    
    index[0] = indexBuffer.get(0);
    index[1] = indexBuffer.get(1);
    
    populateFromBuffer(v[0], vertexBuffer, index[0]);
    populateFromBuffer(v[1], vertexBuffer, index[1]);
    
    populateFromBuffer(t[0], textureBuffer, index[0]);
    populateFromBuffer(t[1], textureBuffer, index[1]);
    
    for (int i = 2; i < indexBuffer.size(); i++) {
        index[2] = indexBuffer.get(i);
        BufferUtils.populateFromBuffer(v[2], vertexBuffer, index[2]);
        BufferUtils.populateFromBuffer(t[2], textureBuffer, index[2]);
        
        boolean isDegenerate = isDegenerateTriangle(v[0], v[1], v[2]);
        TriangleData triData = processTriangle(index, v, t);
        
        if (!isDegenerate) {
            vertices.get(index[0]).triangles.add(triData);
            vertices.get(index[1]).triangles.add(triData);
            vertices.get(index[2]).triangles.add(triData);
        }
        
        Vector3f vTemp = v[0];
        v[0] = v[1];
        v[1] = v[2];
        v[2] = vTemp;
        
        Vector2f tTemp = t[0];
        t[0] = t[1];
        t[1] = t[2];
        t[2] = tTemp;
        
        index[0] = index[1];
        index[1] = index[2];
    }
    
    return vertices;
}

Example 9

Source File: SilentTangentBinormalGenerator.java From OpenRTS with MIT License

4 votes

private static List<VertexData> processTriangleStrip(Mesh mesh, int[] index, Vector3f[] v, Vector2f[] t) {
	IndexBuffer indexBuffer = mesh.getIndexBuffer();
	FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
	FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();

	List<VertexData> vertices = initVertexData(vertexBuffer.limit() / 3);

	index[0] = indexBuffer.get(0);
	index[1] = indexBuffer.get(1);

	populateFromBuffer(v[0], vertexBuffer, index[0]);
	populateFromBuffer(v[1], vertexBuffer, index[1]);

	populateFromBuffer(t[0], textureBuffer, index[0]);
	populateFromBuffer(t[1], textureBuffer, index[1]);

	for (int i = 2; i < indexBuffer.size(); i++) {
		index[2] = indexBuffer.get(i);
		BufferUtils.populateFromBuffer(v[2], vertexBuffer, index[2]);
		BufferUtils.populateFromBuffer(t[2], textureBuffer, index[2]);

		boolean isDegenerate = isDegenerateTriangle(v[0], v[1], v[2]);
		TriangleData triData = processTriangle(index, v, t);

		if (triData != null && !isDegenerate) {
			vertices.get(index[0]).triangles.add(triData);
			vertices.get(index[1]).triangles.add(triData);
			vertices.get(index[2]).triangles.add(triData);
		}

		Vector3f vTemp = v[0];
		v[0] = v[1];
		v[1] = v[2];
		v[2] = vTemp;

		Vector2f tTemp = t[0];
		t[0] = t[1];
		t[1] = t[2];
		t[2] = tTemp;

		index[0] = index[1];
		index[1] = index[2];
	}

	return vertices;
}

Example 10

Source File: TangentBinormalGenerator.java From MikuMikuStudio with BSD 2-Clause "Simplified" License

4 votes

private static VertexData[] processTriangleStrip(Mesh mesh,
        int[] index, Vector3f[] v, Vector2f[] t)
{
    IndexBuffer indexBuffer =  mesh.getIndexBuffer();
    FloatBuffer vertexBuffer = (FloatBuffer) mesh.getBuffer(Type.Position).getData();
    FloatBuffer textureBuffer = (FloatBuffer) mesh.getBuffer(Type.TexCoord).getData();

    VertexData[] vertices = initVertexData(vertexBuffer.capacity() / 3);

    index[0] = indexBuffer.get(0);
    index[1] = indexBuffer.get(1);

    populateFromBuffer(v[0], vertexBuffer, index[0]);
    populateFromBuffer(v[1], vertexBuffer, index[1]);

    populateFromBuffer(t[0], textureBuffer, index[0]);
    populateFromBuffer(t[1], textureBuffer, index[1]);
    
    for (int i = 2; i < indexBuffer.size(); i++) {
        index[2] = indexBuffer.get(i);
        BufferUtils.populateFromBuffer(v[2], vertexBuffer, index[2]);
        BufferUtils.populateFromBuffer(t[2], textureBuffer, index[2]);
        
        boolean isDegenerate = isDegenerateTriangle(v[0], v[1], v[2]);
        TriangleData triData = processTriangle(index, v, t);
        
        if (triData != null && !isDegenerate) {
            vertices[index[0]].triangles.add(triData);
            vertices[index[1]].triangles.add(triData);
            vertices[index[2]].triangles.add(triData);
        }

        Vector3f vTemp = v[0];
        v[0] = v[1];
        v[1] = v[2];
        v[2] = vTemp;

        Vector2f tTemp = t[0];
        t[0] = t[1];
        t[1] = t[2];
        t[2] = tTemp;

        index[0] = index[1];
        index[1] = index[2];
    }

    return vertices;
}