Examples with Vector2f com.jme3.math.Vector2f used on opensource projects

Example 71 with Vector2f

use of com.jme3.math.Vector2f in project jmonkeyengine by jMonkeyEngine.

the class TangentBinormalGenerator method processTriangles.

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 72 with Vector2f

use of com.jme3.math.Vector2f in project jmonkeyengine by jMonkeyEngine.

the class TangentBinormalGenerator method generate.

public static void generate(Mesh mesh, boolean approxTangents, boolean splitMirrored) {
    int[] index = new int[3];
    Vector3f[] v = new Vector3f[3];
    Vector2f[] t = new Vector2f[3];
    for (int i = 0; i < 3; i++) {
        v[i] = new Vector3f();
        t[i] = new Vector2f();
    }
    if (mesh.getBuffer(Type.Normal) == null) {
        throw new IllegalArgumentException("The given mesh has no normal data!");
    }
    List<VertexData> vertices;
    switch(mesh.getMode()) {
        case Triangles:
            vertices = processTriangles(mesh, index, v, t, splitMirrored);
            if (splitMirrored) {
                splitVertices(mesh, vertices, splitMirrored);
            }
            break;
        case TriangleStrip:
            vertices = processTriangleStrip(mesh, index, v, t);
            break;
        case TriangleFan:
            vertices = processTriangleFan(mesh, index, v, t);
            break;
        default:
            throw new UnsupportedOperationException(mesh.getMode() + " is not supported.");
    }
    processTriangleData(mesh, vertices, approxTangents, splitMirrored);
    //if the mesh has a bind pose, we need to generate the bind pose for the tangent buffer
    TangentUtils.generateBindPoseTangentsIfNecessary(mesh);
}

Example 73 with Vector2f

use of com.jme3.math.Vector2f in project jmonkeyengine by jMonkeyEngine.

the class TangentBinormalGenerator method processTriangleStrip.

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 74 with Vector2f

use of com.jme3.math.Vector2f in project jmonkeyengine by jMonkeyEngine.

the class BufferUtils method multInBuffer.

/**
     * Multiply and store a Vector2f in-buffer.
     * 
     * @param toMult
     *            the vector to multiply against
     * @param buf
     *            the buffer to find the Vector2f within
     * @param index
     *            the position (in terms of vectors, not floats) of the vector
     *            to multiply
     */
public static void multInBuffer(Vector2f toMult, FloatBuffer buf, int index) {
    TempVars vars = TempVars.get();
    Vector2f tempVec2 = vars.vect2d;
    populateFromBuffer(tempVec2, buf, index);
    tempVec2.multLocal(toMult);
    setInBuffer(tempVec2, buf, index);
    vars.release();
}

Example 75 with Vector2f

use of com.jme3.math.Vector2f in project jmonkeyengine by jMonkeyEngine.

the class BufferUtils method addInBuffer.

/**
     * Add to a Vector2f in-buffer.
     * 
     * @param toAdd
     *            the vector to add from
     * @param buf
     *            the buffer to find the Vector2f within
     * @param index
     *            the position (in terms of vectors, not floats) of the vector
     *            to add to
     */
public static void addInBuffer(Vector2f toAdd, FloatBuffer buf, int index) {
    TempVars vars = TempVars.get();
    Vector2f tempVec2 = vars.vect2d;
    populateFromBuffer(tempVec2, buf, index);
    tempVec2.addLocal(toAdd);
    setInBuffer(tempVec2, buf, index);
    vars.release();
}