Example usage for java.nio FloatBuffer allocate

List of usage examples for java.nio FloatBuffer allocate

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Introduction

In this page you can find the example usage for java.nio FloatBuffer allocate.

Prototype

public static FloatBuffer allocate(int capacity)

Source Link

Document

Creates a float buffer based on a newly allocated float array.

Usage

From source file:org.goko.tools.viewer.jogl.utils.render.basic.PolylineRenderer.java

/** (inheritDoc)
 * @see org.goko.tools.viewer.jogl.utils.render.internal.AbstractVboJoglRenderer#buildGeometry()
 *///w  w  w  . j  av a  2s .c o  m
@Override
protected void buildGeometry() throws GkException {
    if (closed) {
        setVerticesCount(CollectionUtils.size(points) + 1);
    } else {
        setVerticesCount(CollectionUtils.size(points));
    }
    FloatBuffer vertices = FloatBuffer.allocate(getVerticesCount() * 4);
    FloatBuffer colors = FloatBuffer.allocate(getVerticesCount() * 4);

    if (CollectionUtils.isNotEmpty(points)) {
        for (Point3d p : points) {
            vertices.put(new float[] { (float) p.x, (float) p.y, (float) p.z, 1 });
            colors.put(new float[] { color.x, color.y, color.z, color.w });
        }

        if (closed) {
            Point3d p = points.get(0);
            vertices.put(new float[] { (float) p.x, (float) p.y, (float) p.z, 1 });
            colors.put(new float[] { color.x, color.y, color.z, color.w });
        }
    }
    vertices.rewind();
    colors.rewind();
    setVerticesBuffer(vertices);
    setColorsBuffer(colors);
}

From source file:org.rifidi.jme.quadtree.QuadTree.java

/**
 * Helpermethod to create a boundingbox from a node.
 * @param node/*from  w  w w . ja  v  a 2  s  .c  o  m*/
 * @return
 */
private BoundingBox createBoundingBox(Node node) {
    FloatBuffer vertexBuffer = null;
    BoundingBox bbox = new BoundingBox();
    //walk through all children
    for (Spatial child : node.getChildren()) {
        //check if it contains tri data
        if (child instanceof Geometry) {
            Geometry geom = ((Geometry) child);
            for (int count = 0; count < geom.getBatchCount(); count++) {
                if (vertexBuffer == null) {
                    vertexBuffer = geom.getVertexBuffer(count);
                } else {
                    FloatBuffer tempBuffer = FloatBuffer
                            .allocate(vertexBuffer.capacity() + geom.getVertexBuffer(count).capacity());
                    tempBuffer.put(vertexBuffer);
                    tempBuffer.put(geom.getVertexBuffer(count));
                    vertexBuffer = tempBuffer;
                }
            }
            //compute the boundingbox
            bbox.computeFromPoints(vertexBuffer);
        }
    }
    if (node.getLocalTranslation() == new Vector3f()) {
        bbox.setCenter(node.getLocalTranslation());
    }
    return bbox;
}

From source file:ummisco.gama.opengl.vaoGenerator.GeomMathUtils.java

static public FloatBuffer getFloatBuffer(final Matrix4f matrix) {
    final FloatBuffer result = FloatBuffer.allocate(16);
    result.put(0, matrix.m00);//ww  w .ja v a 2 s .  c o m
    result.put(1, matrix.m01);
    result.put(2, matrix.m02);
    result.put(3, matrix.m03);
    result.put(4, matrix.m10);
    result.put(5, matrix.m11);
    result.put(6, matrix.m12);
    result.put(7, matrix.m13);
    result.put(8, matrix.m20);
    result.put(9, matrix.m21);
    result.put(10, matrix.m22);
    result.put(11, matrix.m23);
    result.put(12, matrix.m30);
    result.put(13, matrix.m31);
    result.put(14, matrix.m32);
    result.put(15, matrix.m33);
    return result;
}