50 lines
2.1 KiB
C++
50 lines
2.1 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/** \file
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* \ingroup freestyle
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* \brief Class to define a cell grid surrounding the projected image of a scene
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*/
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#include "GridHelpers.h"
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namespace Freestyle {
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void GridHelpers::getDefaultViewProscenium(real viewProscenium[4])
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{
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// Get proscenium boundary for culling
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// bufferZone determines the amount by which the area processed should exceed the actual image
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// area. This is intended to avoid visible artifacts generated along the proscenium edge. Perhaps
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// this is no longer needed now that entire view edges are culled at once, since that
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// theoretically should eliminate visible artifacts. To the extent it is still useful, bufferZone
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// should be put into the UI as configurable percentage value
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const real bufferZone = 0.05;
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// borderZone describes a blank border outside the proscenium, but still inside the image area.
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// Only intended for exposing possible artifacts along or outside the proscenium edge during
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// debugging.
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const real borderZone = 0.0;
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viewProscenium[0] = g_freestyle.viewport[2] * (borderZone - bufferZone);
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viewProscenium[1] = g_freestyle.viewport[2] * (1.0f - borderZone + bufferZone);
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viewProscenium[2] = g_freestyle.viewport[3] * (borderZone - bufferZone);
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viewProscenium[3] = g_freestyle.viewport[3] * (1.0f - borderZone + bufferZone);
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}
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GridHelpers::Transform::~Transform()
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{
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}
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} /* namespace Freestyle */
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