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/***************************************************************************
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* Copyright (C) 2006 by Frederic MARTIN *
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* martin-frederic@users.sourceforge.net *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (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. See the *
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* 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 *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef __RAY_TRACING__H__
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#define __RAY_TRACING__H__
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// SelectPolygon() creates a ray from the current camera coordinates to a point half a unit into the screen that is coincident
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// with the mouse coordinates passed in and checks for an intersection along the line of this ray with the quad passed in.
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// The 4 vertices of the quad MUST be in the same plane
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// If there is an intersection then the function returns true.
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// MouseX and MouseY are relative to the top-left corner of the window.
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bool SelectPolygon(double cameraX, double cameraY, double cameraZ,
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double Vertices[12], double Intersec[3],
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int MouseX, int MouseY);
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src/raytracing.h
