71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
// Filename: matrixLens.cxx
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// Created by: drose (12Dec01)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#include "matrixLens.h"
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#include "indent.h"
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TypeHandle MatrixLens::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: MatrixLens::make_copy
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// Access: Public, Virtual
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// Description: Allocates a new Lens just like this one.
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////////////////////////////////////////////////////////////////////
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PT(Lens) MatrixLens::
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make_copy() const {
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return new MatrixLens(*this);
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}
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////////////////////////////////////////////////////////////////////
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// Function: MatrixLens::is_linear
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// Access: Published, Virtual
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// Description: Returns true if the lens represents a linear
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// projection (e.g. PerspectiveLens, MatrixLens),
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// and therefore there is a valid matrix returned by
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// get_projection_mat(), or false otherwise.
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////////////////////////////////////////////////////////////////////
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bool MatrixLens::
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is_linear() const {
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return true;
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}
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////////////////////////////////////////////////////////////////////
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// Function: MatrixLens::write
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// Access: Public, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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void MatrixLens::
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write(ostream &out, int indent_level) const {
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indent(out, indent_level) << get_type() << ":\n";
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_projection_mat.write(out, indent_level + 2);
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}
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////////////////////////////////////////////////////////////////////
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// Function: MatrixLens::compute_projection_mat
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// Access: Protected, Virtual
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// Description: Computes the complete transformation matrix from 3-d
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// point to 2-d point, if the lens is linear.
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////////////////////////////////////////////////////////////////////
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void MatrixLens::
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compute_projection_mat() {
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_projection_mat = get_lens_mat_inv() * _user_mat * get_film_mat();
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adjust_comp_flags(CF_projection_mat_inv,
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CF_projection_mat);
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}
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