80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
/*
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* Copyright (c) 2016-2016 Irlan Robson http://www.irlan.net
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef QHULL_H
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#define QHULL_H
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#include <bounce/quickhull/qh_hull.h>
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class QuickhullTest : public Test
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{
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public:
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QuickhullTest()
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{
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b3BoxHull box;
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box.SetIdentity();
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b3StackArray<b3Vec3, 256> tetra;
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b3Vec3 v1(-1.0f, 0.0f, 0.0f);
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b3Vec3 v2(1.0f, 0.0f, 0.0f);
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b3Vec3 v3(0.0f, 0.0f, -1.0f);
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b3Vec3 v4 = 0.5f * (v1 + v2 + v3);
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v4.y += 2.0f;
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tetra.PushBack(v1);
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tetra.PushBack(v2);
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tetra.PushBack(v3);
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tetra.PushBack(v4);
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// Minkowski sum of box and tetrahedron
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b3StackArray<b3Vec3, 256> points;
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for (u32 i = 0; i < box.vertexCount; ++i)
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{
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for (u32 j = 0; j < tetra.Count(); ++j)
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{
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b3Vec3 p = box.vertices[i] - tetra[j];
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points.PushBack(p);
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}
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}
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u32 size = qhGetMemorySize(points.Count());
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m_memory = b3Alloc(size);
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m_qhull.Construct(m_memory, points);
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}
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~QuickhullTest()
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{
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b3Free(m_memory);
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}
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void Step()
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{
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g_draw->DrawString(b3Color_white, "Iterations = %d", m_qhull.GetIterations());
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m_qhull.Draw();
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}
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static Test* Create()
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{
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return new QuickhullTest();
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}
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void* m_memory;
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qhHull m_qhull;
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};
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#endif |