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https://gitlab.com/kicad/code/kicad.git
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d8eab321f7
* Split and rewrite the preview window and canvas. * Create a new class for handling the board information. * Adds new render targets: openGL, legacy, and ray tracing. * Render targets take full advantage of the new 3D plugins system and 3D cache for a fast 3D model loading. * Faster board loading. * New OpenGL render is faster than the old one. * New ray tracing render target with a post processing shader. * Use of new 3D plugins (WRL, X3D, STEP and IGES) and 3D model caching. * Preview of 3D model while browsing the file name. * 3D preview of the footprint while adding / align 3D shapes. * Render of 3D models according to attributes: Normal, Normal+Insert, Virtual. * Pivot rotation centered in one point over the PCB board. * Shortcuts keys improved for XYZ orientation.. * Animated camera.
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2016 Mario Luzeiro <mrluzeiro@ua.pt>
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* Copyright (C) 1992-2016 KiCad Developers, see AUTHORS.txt for contributors.
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*
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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, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file 3d_fastmath.cpp
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* @brief
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*/
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#include "3d_fastmath.h"
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// Fast Float Random Numbers
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// a small and fast implementation for random float numbers in the range [-1,1]
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// References : Posted by dominik.ries[AT]gmail[DOT]com
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// http://www.musicdsp.org/showone.php?id=273
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// set the initial seed to whatever you like
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static int s_randSeed = 1;
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// fast rand float, using full 32bit precision
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// returns in the range [-1, 1] (not confirmed)
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float Fast_RandFloat()
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{
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s_randSeed *= 16807;
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return (float)s_randSeed * 4.6566129e-010f;
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}
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// Fast rand, as described here:
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// http://wiki.osdev.org/Random_Number_Generator
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static unsigned long int s_nextRandSeed = 1;
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int Fast_rand( void ) // RAND_MAX assumed to be 32767
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{
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s_nextRandSeed = s_nextRandSeed * 1103515245 + 12345;
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return (unsigned int)(s_nextRandSeed >> 16) & 0x7FFF;
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}
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void Fast_srand( unsigned int seed )
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{
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s_nextRandSeed = seed;
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}
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