Examples with FloatBuffer java.nio.FloatBuffer used on opensource projects

Example 6 with FloatBuffer

use of java.nio.FloatBuffer in project Rajawali by Rajawali.

the class BoundingBox method calculateBounds.

public void calculateBounds(Geometry3D geometry) {
    mMin.setAll(Double.MAX_VALUE, Double.MAX_VALUE, Double.MAX_VALUE);
    mMax.setAll(-Double.MAX_VALUE, -Double.MAX_VALUE, -Double.MAX_VALUE);
    FloatBuffer vertices = geometry.getVertices();
    if (vertices != null) {
        calculateMinMaxVertices(vertices, mMin, mMax);
        calculatePoints();
    }
}

Example 7 with FloatBuffer

use of java.nio.FloatBuffer in project Rajawali by Rajawali.

the class BoundingSphere method calculateBounds.

public void calculateBounds(Geometry3D geometry) {
    double radius = 0, maxRadius = 0;
    Vector3 vertex = new Vector3();
    FloatBuffer vertices = geometry.getVertices();
    vertices.rewind();
    while (vertices.hasRemaining()) {
        vertex.x = vertices.get();
        vertex.y = vertices.get();
        vertex.z = vertices.get();
        radius = vertex.length();
        if (radius > maxRadius)
            maxRadius = radius;
    }
    mRadius = maxRadius;
}

Example 8 with FloatBuffer

use of java.nio.FloatBuffer in project Rajawali by Rajawali.

the class DebugBoundingBox method updateBox.

private void updateBox(BoundingBox bb) {
    FloatBuffer b = mGeometry.getVertices();
    int index = 0;
    bb.copyPoints(mBBoxVertices);
    addVertexToBuffer(b, index++, mBBoxVertices[0]);
    addVertexToBuffer(b, index++, mBBoxVertices[1]);
    addVertexToBuffer(b, index++, mBBoxVertices[2]);
    addVertexToBuffer(b, index++, mBBoxVertices[3]);
    addVertexToBuffer(b, index++, mBBoxVertices[0]);
    addVertexToBuffer(b, index++, mBBoxVertices[4]);
    addVertexToBuffer(b, index++, mBBoxVertices[5]);
    addVertexToBuffer(b, index++, mBBoxVertices[1]);
    addVertexToBuffer(b, index++, mBBoxVertices[5]);
    addVertexToBuffer(b, index++, mBBoxVertices[6]);
    addVertexToBuffer(b, index++, mBBoxVertices[2]);
    addVertexToBuffer(b, index++, mBBoxVertices[6]);
    addVertexToBuffer(b, index++, mBBoxVertices[7]);
    addVertexToBuffer(b, index++, mBBoxVertices[3]);
    addVertexToBuffer(b, index++, mBBoxVertices[7]);
    addVertexToBuffer(b, index++, mBBoxVertices[4]);
    mGeometry.changeBufferData(mGeometry.getVertexBufferInfo(), mGeometry.getVertices(), 0);
}

Example 9 with FloatBuffer

use of java.nio.FloatBuffer in project Rajawali by Rajawali.

the class DebugCamera method updateFrustum.

public void updateFrustum() {
    mCamera.setProjectionMatrix(mRenderer.getOverrideViewportWidth(), mRenderer.getOverrideViewportHeight());
    if (mPoints == null) {
        if (!mCamera.isInitialized()) {
            return;
        }
        mPoints = new Stack<>();
        mFrustumCornersTransformed = new Vector3[8];
        for (int i = 0; i < 16; i++) {
            if (i < 8)
                mFrustumCornersTransformed[i] = new Vector3();
            mPoints.push(new Vector3());
        }
        init(true);
        getGeometry().changeBufferUsage(mGeometry.getVertexBufferInfo(), GLES20.GL_DYNAMIC_DRAW);
        setMaterial(mMaterial);
    }
    mCamera.getFrustumCorners(mFrustumCornersTransformed, true, true);
    FloatBuffer b = mGeometry.getVertices();
    int index = 0;
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[0]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[1]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[2]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[3]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[0]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[4]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[5]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[1]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[5]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[6]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[2]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[6]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[7]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[3]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[7]);
    addVertexToBuffer(b, index++, mFrustumCornersTransformed[4]);
    mGeometry.changeBufferData(mGeometry.getVertexBufferInfo(), mGeometry.getVertices(), 0);
}

Example 10 with FloatBuffer

use of java.nio.FloatBuffer in project Horizon by Yalantis.

the class Buffers method makeInterleavedBuffer.

public static FloatBuffer makeInterleavedBuffer(float[] tData, int triangles) {
    int dataLength = tData.length;
    final FloatBuffer interleavedBuffer = ByteBuffer.allocateDirect(dataLength * Const.BYTES_PER_FLOAT).order(ByteOrder.nativeOrder()).asFloatBuffer();
    int tOffset = 0;
    for (int i = 0; i < triangles; i++) {
        for (int j = 0; j < Const.POINTS_PER_TRIANGLE; j++) {
            /**
                 * This doesn't seem to do make much sense for one array, but we might need to scale it up
                 */
            interleavedBuffer.put(tData, tOffset, Const.T_DATA_SIZE);
            tOffset += Const.T_DATA_SIZE;
        }
    }
    interleavedBuffer.position(0);
    return interleavedBuffer;
}