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Pierre-TerdimanPierre-Terdiman
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Part 14d in the "box pruning revisited" project
See Reports\Part14d.pdf for details
1 parent 0cfdcee commit 904081d

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‎BoxPruning14d/BoxPruning.cpp‎

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#include "stdafx.h"
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#ifdef REMOVED
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void RunTest();
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// Play with the settings!
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static const udword NbBoxes = 5000;
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static const float BoxSize = 20.0f;
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static const float Spread = 2000.0f;
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int main(int argc, char* argv[])
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{
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if(1)
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{
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RunTest();
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return 0;
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}
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// 1) Create random boxes
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AABB* Boxes = new AABB[NbBoxes];
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const AABB** List = new const AABB*[NbBoxes];
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for(udword i=0;i<NbBoxes;i++)
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{
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// Get a random center in a cube
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Point Center;
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Center.x = (UnitRandomFloat()-0.5f)*Spread;
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Center.y = (UnitRandomFloat()-0.5f)*Spread;
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Center.z = (UnitRandomFloat()-0.5f)*Spread;
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// Get random extents
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Point Extents;
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Extents.x = UnitRandomFloat()*BoxSize;
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Extents.y = UnitRandomFloat()*BoxSize;
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Extents.z = UnitRandomFloat()*BoxSize;
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// Setup random box
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Boxes[i].mMin.x = Center.x - Extents.x;
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Boxes[i].mMin.y = Center.y - Extents.y;
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Boxes[i].mMin.z = Center.z - Extents.z;
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Boxes[i].mMax.x = Center.x + Extents.x;
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Boxes[i].mMax.y = Center.y + Extents.y;
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Boxes[i].mMax.z = Center.z + Extents.z;
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List[i] = &Boxes[i];
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}
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const udword NB = 16;
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// 2) Do queries
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udword Time;
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Axes axes;
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axes.Axis0 = 0;
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axes.Axis1 = 2;
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axes.Axis2 = 1;
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// 2-1) Brute-force
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Container Pairs;
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udword MinTime = 0xffffffff;
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// StartProfile(Time);
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for(udword i=0;i<NB;i++)
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{
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Pairs.Reset();
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StartProfile(Time);
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BruteForceCompleteBoxTest(NbBoxes, List, Pairs);
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EndProfile(Time);
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if(Time<MinTime)
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MinTime = Time;
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}
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// EndProfile(Time);
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// printf("Brute force: found %d intersections in %d K-cycles.\n", Pairs.GetNbEntries()>>1, Time/(1024*NB));
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printf("Brute force: found %d intersections in %d K-cycles.\n", Pairs.GetNbEntries()>>1, MinTime/1024);
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// 2-1) Sweep&prune
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// Pairs.Reset();
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MinTime = 0xffffffff;
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// StartProfile(Time);
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for(udword i=0;i<NB;i++)
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{
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Pairs.Reset();
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StartProfile(Time);
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CompleteBoxPruning(NbBoxes, Boxes/*List*/, Pairs/*, axes*/);
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EndProfile(Time);
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if(Time<MinTime)
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MinTime = Time;
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}
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// EndProfile(Time);
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printf("Sweep&Prune: found %d intersections in %d K-cycles.\n", Pairs.GetNbEntries()>>1, MinTime/1024);
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// printf("Sweep&Prune: found %d intersections in %d K-cycles.\n", Pairs.GetNbEntries()>>1, Time/(1024*NB));
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// 3) Free & exit
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DELETEARRAY(Boxes);
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return 0;
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}
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#endif

‎BoxPruning14d/BoxPruning.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio 2012
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "BoxPruning", "BoxPruning.vcxproj", "{35D7F2C2-E8EA-4B0C-A7CE-57269DD6B171}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Win32 = Debug|Win32
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Release|Win32 = Release|Win32
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{35D7F2C2-E8EA-4B0C-A7CE-57269DD6B171}.Debug|Win32.ActiveCfg = Debug|Win32
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{35D7F2C2-E8EA-4B0C-A7CE-57269DD6B171}.Debug|Win32.Build.0 = Debug|Win32
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{35D7F2C2-E8EA-4B0C-A7CE-57269DD6B171}.Release|Win32.ActiveCfg = Release|Win32
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{35D7F2C2-E8EA-4B0C-A7CE-57269DD6B171}.Release|Win32.Build.0 = Release|Win32
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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EndGlobal

‎BoxPruning14d/BoxPruning.v11.suo‎

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‎BoxPruning14d/BoxPruning.vcxproj‎

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‎BoxPruning14d/BoxPruning.vcxproj.filters‎

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