2022-02-08 21:49:56 +00:00
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/*
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Copyright (C) 2007 Peter Mackay and Chris Swindle.
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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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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.
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See the GNU General Public License for more details.
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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
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef QUAKE_CLIPPING_HPP
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#define QUAKE_CLIPPING_HPP
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#include <cstddef>
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struct glvert_s;
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namespace quake
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{
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namespace clipping
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{
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// Calculates clipping planes from the GU view and projection matrices.
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2023-09-16 13:00:48 +00:00
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void begin_frame(float regularfov, float wideclippingfov, float screenaspect);
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2022-02-08 21:49:56 +00:00
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// Calculates clipping planes from the GU view and projection matrices.
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void begin_brush_model();
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// Resets the frustum to camera space.
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void end_brush_model();
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// Is clipping required?
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bool is_clipping_required(const struct glvert_s* vertices, std::size_t vertex_count);
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// Clips a polygon.
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void clip(
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const struct glvert_s* unclipped_vertices,
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std::size_t unclipped_vertex_count,
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const struct glvert_s** clipped_vertices,
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std::size_t* clipped_vertex_count);
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}
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}
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#endif
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