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Diffstat (limited to 'source/blender/freestyle/intern/geometry/GridHelpers.cpp')
| -rw-r--r-- | source/blender/freestyle/intern/geometry/GridHelpers.cpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/geometry/GridHelpers.cpp b/source/blender/freestyle/intern/geometry/GridHelpers.cpp new file mode 100644 index 00000000000..dcf24a72efb --- /dev/null +++ b/source/blender/freestyle/intern/geometry/GridHelpers.cpp @@ -0,0 +1,56 @@ +// +// Filename : GridHelpers.cpp +// Author(s) : Alexander Beels +// Purpose : Class to define a cell grid surrounding +// the projected image of a scene +// Date of creation : 2010-12-21 +// +/////////////////////////////////////////////////////////////////////////////// + +// +// Copyright (C) : Please refer to the COPYRIGHT file distributed +// with this source distribution. +// +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License +// as published by the Free Software Foundation; either version 2 +// of the License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +// +/////////////////////////////////////////////////////////////////////////////// + +#include <math.h> +#include "GridHelpers.h" + +void GridHelpers::getDefaultViewProscenium(real viewProscenium[4]) { + // Get proscenium boundary for culling + // bufferZone determines the amount by which the area processed + // should exceed the actual image area. This is intended to + // avoid visible artifacts generated along the proscenium edge. + // Perhaps this is no longer needed now that entire view edges + // are culled at once, since that theoretically should eliminate + // visible artifacts. + // To the extent it is still useful, bufferZone should be put into + // the UI as configurable percentage value + const real bufferZone = 0.05; + // borderZone describes a blank border outside the proscenium, but + // still inside the image area. Only intended for exposing possible + // artifacts along or outside the proscenium edge during debugging. + const real borderZone = 0.0; + viewProscenium[0] = freestyle_viewport[2] * (borderZone - bufferZone); + viewProscenium[1] = freestyle_viewport[2] * (1.0f - borderZone + bufferZone); + viewProscenium[2] = freestyle_viewport[3] * (borderZone - bufferZone); + viewProscenium[3] = freestyle_viewport[3] * (1.0f - borderZone + bufferZone); +} + +GridHelpers::Transform::~Transform () {} + + |