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class Melting : public Scene
{
public:
Melting(const char* name) : Scene(name) {}
virtual void Initialize()
{
g_params.radius = 0.1f;
g_params.numIterations = 2;
g_params.dynamicFriction = 0.25f;
g_params.dissipation = 0.0f;
g_params.viscosity = 0.0f;
g_params.cohesion = 0.0f;
g_params.fluidRestDistance = g_params.radius*0.6f;
g_params.smoothing = 0.5f;
const float spacing = g_params.radius*0.5f;
Mesh* mesh = ImportMesh(GetFilePathByPlatform("../../data/bunny.ply").c_str());
int phase = NvFlexMakePhase(0, eNvFlexPhaseSelfCollide | eNvFlexPhaseFluid);
float size = 1.2f;
for (int i = 0; i < 1; ++i)
for (int j = 0; j < 3; ++j)
CreateParticleShape(mesh, Vec3(-2.0f + j*size, 3.0f + j*size, i*size), size, 0.0f, spacing, Vec3(0.0f, 0.0f, 0.0f), 1.0f, true, 1.f, phase, false, 0.0f);
delete mesh;
// plinth
AddBox(2.0f, Vec3(0.0f, 1.0f, 0.0f));
g_numSubsteps = 2;
// draw options
g_drawPoints = true;
g_drawMesh = false;
mFrame = 0;
}
virtual void Update()
{
const int start = 130;
if (mFrame >= start)
{
float stiffness = max(0.0f, 1.0f - (mFrame - start) / 100.0f);
for (int i = 0; i < g_buffers->rigidCoefficients.size(); ++i)
g_buffers->rigidCoefficients[i] = stiffness;
g_params.cohesion = Lerp(0.05f, 0.0f, stiffness);
}
++mFrame;
}
virtual void Sync()
{
NvFlexSetRigids(g_solver, g_buffers->rigidOffsets.buffer, g_buffers->rigidIndices.buffer, g_buffers->rigidLocalPositions.buffer, g_buffers->rigidLocalNormals.buffer, g_buffers->rigidCoefficients.buffer, g_buffers->rigidPlasticThresholds.buffer, g_buffers->rigidPlasticCreeps.buffer, g_buffers->rigidRotations.buffer, g_buffers->rigidTranslations.buffer, g_buffers->rigidOffsets.size() - 1, g_buffers->rigidIndices.size());
}
int mFrame;
};
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