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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2018 NVIDIA Corporation. All rights reserved.
#include "RTdef.h"
#if RT_COMPILE
#include "CompoundGeometryBase.h"
namespace physx
{
namespace fracture
{
namespace base
{
// -------------------------------------------------------------------------------
void CompoundGeometry::clear()
{
convexes.clear();
vertices.clear();;
normals.clear();
indices.clear();
neighbors.clear();
planes.clear();
}
// -------------------------------------------------------------------------------
bool CompoundGeometry::loadFromFile(const char * /*filename*/)
{
return true;
}
// -------------------------------------------------------------------------------
bool CompoundGeometry::saveFromFile(const char * /*filename*/)
{
return true;
}
// -------------------------------------------------------------------------------
void CompoundGeometry::initConvex(Convex &c)
{
c.firstVert = vertices.size();
c.numVerts = 0;
c.firstNormal = normals.size();
c.firstIndex = indices.size();
c.numFaces = 0;
c.firstPlane = 0;
c.firstNeighbor = neighbors.size();
c.numNeighbors = 0;
c.radius = 0.f;
c.isSphere = false;
}
// -------------------------------------------------------------------------------
void CompoundGeometry::derivePlanes()
{
planes.clear();
PxPlane p;
for (int i = 0; i < (int)convexes.size(); i++) {
Convex &c = convexes[i];
c.firstPlane = planes.size();
int *ids = &indices[c.firstIndex];
PxVec3 *verts = &vertices[c.firstVert];
for (int j = 0; j < c.numFaces; j++) {
int num = *ids++;
*ids++; //int flags = *ids++;
if (num < 3)
p = PxPlane(1.0f, 0.0f, 0.0f, 0.0f);
else {
p.n = PxVec3(0.0f, 0.0f, 0.0f);
for (int k = 1; k < num-1; k++) {
const PxVec3 &p0 = verts[ids[0]];
const PxVec3 &p1 = verts[ids[k]];
const PxVec3 &p2 = verts[ids[k+1]];
p.n += (p1-p0).cross(p2-p1);
}
p.n.normalize();
p.d = p.n.dot(verts[ids[0]]);
}
planes.pushBack(p);
ids += num;
}
}
}
}
}
}
#endif
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