Java Code Examples for org.lwjgl.util.vector.Vector4f#set()

The following examples show how to use org.lwjgl.util.vector.Vector4f#set() . 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: PowerRay.java From ldparteditor with MIT License

5 votes

public boolean TRIANGLE_INTERSECT(Vector4f orig, Vector4f dir, Vertex vert0, Vertex vert1, Vertex vert2, Vector4f intersection_point, double[] dist) {
    double[] orig_arr = new double[] { orig.x, orig.y, orig.z };
    double[] dir_arr = new double[] { dir.x, dir.y, dir.z };
    double[] vert0_arr = new double[] { vert0.x, vert0.y, vert0.z };
    double[] vert1_arr = new double[] { vert1.x, vert1.y, vert1.z };
    double[] vert2_arr = new double[] { vert2.x, vert2.y, vert2.z };
    if (TRIANGLE_INTERSECT2(orig_arr, dir_arr, vert0_arr, vert1_arr, vert2_arr)) {
        intersection_point.set((float) (orig_arr[0] + dir_arr[0] * t), (float) (orig_arr[1] + dir_arr[1] * t), (float) (orig_arr[2] + dir_arr[2] * t), 1f);
        dist[0] = t;
        return true;
    }
    return false;
}

Example 2

Source File: PowerRay.java From ldparteditor with MIT License

5 votes

public double[] BARYCENTRIC(double[] point, double[] normal, double[] vert0, double[] vert1, double[] vert2, Vector4f intersection_point) {
    double[] orig = new double[] { 100.0 * normal[0] + point[0], 100.0 * normal[1] + point[1], 100.0 * normal[2] + point[2] };
    double diskr = 0;
    double inv_diskr = 0;
    corner1[0] = vert1[0] - vert0[0];
    corner1[1] = vert1[1] - vert0[1];
    corner1[2] = vert1[2] - vert0[2];
    corner2[0] = vert2[0] - vert0[0];
    corner2[1] = vert2[1] - vert0[1];
    corner2[2] = vert2[2] - vert0[2];
    pvec[0] = normal[1] * corner2[2] - normal[2] * corner2[1];
    pvec[1] = normal[2] * corner2[0] - normal[0] * corner2[2];
    pvec[2] = normal[0] * corner2[1] - normal[1] * corner2[0];
    diskr = corner1[0] * pvec[0] + corner1[1] * pvec[1] + corner1[2] * pvec[2];
    if (diskr > -TOLERANCE && diskr < TOLERANCE)
        return null;
    inv_diskr = 1d / diskr;
    tvec[0] = orig[0] - vert0[0];
    tvec[1] = orig[1] - vert0[1];
    tvec[2] = orig[2] - vert0[2];
    u = (tvec[0] * pvec[0] + tvec[1] * pvec[1] + tvec[2] * pvec[2]) * inv_diskr;
    if (u < 0 || u > 1d)
        return null;
    qvec[0] = tvec[1] * corner1[2] - tvec[2] * corner1[1];
    qvec[1] = tvec[2] * corner1[0] - tvec[0] * corner1[2];
    qvec[2] = tvec[0] * corner1[1] - tvec[1] * corner1[0];
    v = (normal[0] * qvec[0] + normal[1] * qvec[1] + normal[2] * qvec[2]) * inv_diskr;
    if (v < 0 || u + v > 1d)
        return null;
    double w = 1.0 - u - v;
    intersection_point.set((float) (vert0[0] * w + vert1[0] * u + vert2[0] * v), (float) (vert0[1] * w + vert1[1] * u + vert2[1] * v), (float) (vert0[2] * w + vert1[2] * u + vert2[2] * v), 1f);
    return new double[] { u, v, w };
}

Example 3

Source File: Particle.java From tribaltrouble with GNU General Public License v2.0

5 votes

public Particle(float angle) {
	Matrix4f rot_matrix = new Matrix4f();
	Vector3f axis = new Vector3f();
	Vector4f uv_vector = new Vector4f();
	Vector4f transform_uv_vector = new Vector4f();
	
	rot_matrix.setIdentity();
	axis.set(0f, 0f, 1f);
	rot_matrix.rotate(angle, axis);

	uv_vector.set(-.5f, -.5f, 0f, 0f);
	Matrix4f.transform(rot_matrix, uv_vector, transform_uv_vector);
	u1 = transform_uv_vector.getX() + .5f;
	v1 = transform_uv_vector.getY() + .5f;
	
	uv_vector.set(.5f, -.5f, 0f, 0f);
	Matrix4f.transform(rot_matrix, uv_vector, transform_uv_vector);
	u2 = transform_uv_vector.getX() + .5f;
	v2 = transform_uv_vector.getY() + .5f;

	uv_vector.set(.5f, .5f, 0f, 0f);
	Matrix4f.transform(rot_matrix, uv_vector, transform_uv_vector);
	u3 = transform_uv_vector.getX() + .5f;
	v3 = transform_uv_vector.getY() + .5f;

	uv_vector.set(-.5f, .5f, 0f, 0f);
	Matrix4f.transform(rot_matrix, uv_vector, transform_uv_vector);
	u4 = transform_uv_vector.getX() + .5f;
	v4 = transform_uv_vector.getY() + .5f;
}

Example 4