75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
// Filename: xFileNormal.cxx
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// Created by: drose (19Jun01)
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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 - 2004, 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://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#include "xFileNormal.h"
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#include "eggVertex.h"
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#include "eggPrimitive.h"
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#include "config_xfile.h"
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////////////////////////////////////////////////////////////////////
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// Function: XFileNormal::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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XFileNormal::
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XFileNormal() {
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_normal.set(0.0, 0.0, 0.0);
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_has_normal = false;
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}
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////////////////////////////////////////////////////////////////////
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// Function: XFileNormal::set_from_egg
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// Access: Public
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// Description: Sets the structure up from the indicated egg data.
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////////////////////////////////////////////////////////////////////
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void XFileNormal::
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set_from_egg(EggVertex *egg_vertex, EggPrimitive *egg_prim) {
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if (egg_vertex->has_normal() || egg_prim->has_normal()) {
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Normald norm;
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if (egg_vertex->has_normal()) {
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norm = egg_vertex->get_normal();
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} else {
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norm = egg_prim->get_normal();
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}
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if (xfile_one_mesh) {
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// If this is going into one big mesh, we must ensure every
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// vertex is in world coordinates.
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norm = norm * egg_prim->get_vertex_frame();
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} else {
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// Otherwise, we ensure the vertex is in local coordinates.
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norm = norm * egg_prim->get_vertex_to_node();
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}
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_normal = norm;
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_has_normal = true;
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: XFileNormal::compare_to
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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int XFileNormal::
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compare_to(const XFileNormal &other) const {
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int ct;
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ct = _normal.compare_to(other._normal);
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return ct;
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}
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