public function transformVertex(Vertex $vtx)
{
$tmp_array = array();
$tmp_array[0][0] = $vtx->getX();
$tmp_array[1][0] = $vtx->getY();
$tmp_array[2][0] = $vtx->getZ();
$tmp_array[3][0] = $vtx->getW();
return new Vertex(array('x' => $this->_mult_line_row($tmp_array, 0, 0), 'y' => $this->_mult_line_row($tmp_array, 1, 0), 'z' => $this->_mult_line_row($tmp_array, 2, 0), 'color' => $vtx->getColor()));
}
private function _setVectorFromVertex(Vertex $orig, Vertex $dest)
{
$this->_x = $dest->getX() / $dest->getW() - $orig->getX() / $orig->getW();
$this->_y = $dest->getY() / $dest->getW() - $orig->getY() / $orig->getW();
$this->_z = $dest->getZ() / $dest->getW() - $orig->getZ() / $orig->getW();
}
public function transformVertex(Vertex $vtx)
{
$newX = $vtx->getX() * $this->_matrix[0][0] + $vtx->getY() * $this->_matrix[0][1] + $vtx->getZ() * $this->_matrix[0][2] + $this->_matrix[0][3];
$newY = $vtx->getX() * $this->_matrix[1][0] + $vtx->getY() * $this->_matrix[1][1] + $vtx->getZ() * $this->_matrix[1][2] + $this->_matrix[1][3];
$newZ = $vtx->getX() * $this->_matrix[2][0] + $vtx->getY() * $this->_matrix[2][1] + $vtx->getZ() * $this->_matrix[2][2] + $this->_matrix[2][3];
$newW = $vtx->getX() * $this->_matrix[3][0] + $vtx->getY() * $this->_matrix[3][1] + $vtx->getZ() * $this->_matrix[3][2] + $this->_matrix[3][3];
return new Vertex(array('x' => $newX / $newW, 'y' => $newY / $newW, 'z' => $newZ / $newW));
}