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class SDFCollision : public Scene
{
public:
SDFCollision(const char* name) : Scene(name)
{
}
virtual void Initialize()
{
const int dim = 128;
NvFlexDistanceFieldId sdf = CreateSDF(GetFilePathByPlatform("../../data/bunny.ply").c_str(), dim);
AddSDF(sdf, Vec3(-1.f, 0.0f, 0.0f), QuatFromAxisAngle(Vec3(0.0f, 1.0f, 0.0f), DegToRad(-45.0f)), 0.5f);
AddSDF(sdf, Vec3(0.0f, 0.0f, 0.0f), QuatFromAxisAngle(Vec3(0.0f, 1.0f, 0.0f), DegToRad(0.0f)), 1.0f);
AddSDF(sdf, Vec3(1.0f, 0.0f, 0.0f), QuatFromAxisAngle(Vec3(0.0f, 1.0f, 0.0f), DegToRad(45.0f)), 2.0f);
float stretchStiffness = 1.0f;
float bendStiffness = 0.8f;
float shearStiffness = 0.5f;
int dimx = 64;
int dimz = 64;
float radius = 0.05f;
int phase = NvFlexMakePhase(0, eNvFlexPhaseSelfCollide | eNvFlexPhaseSelfCollideFilter);
CreateSpringGrid(Vec3(-0.6f, 2.9f, -0.6f), dimx, dimz, 1, radius*0.75f, phase, stretchStiffness, bendStiffness, shearStiffness, 0.0f, 1.0f);
Vec3 lower, upper;
GetParticleBounds(lower, upper);
g_params.radius = radius*1.0f;
g_params.dynamicFriction = 0.4f;
g_params.staticFriction = 0.4f;
g_params.particleFriction = 0.25f;
g_params.dissipation = 0.0f;
g_params.numIterations = 8;
g_params.viscosity = 0.0f;
g_params.drag = 0.02f;
g_params.lift = 0.1f;
g_params.collisionDistance = radius*0.5f;
g_params.relaxationFactor = 1.3f;
g_numSubsteps = 3;
g_windStrength = 0.0f;
// draw options
g_drawPoints = false;
g_drawSprings = false;
}
};
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