1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
class ArmadilloShower : public Scene
{
public:
ArmadilloShower(const char* name, bool viscous) : Scene(name), mViscous(viscous) {}
virtual void Initialize()
{
float minSize = 0.5f;
float maxSize = 1.0f;
float radius = 0.1f;
for (int i=0; i < 5; i++)
AddRandomConvex(10, Vec3(i*2.0f, 0.0f, Randf(0.0f, 2.0f)), minSize, maxSize, Vec3(0.0f, 1.0f, 0.0f), Randf(0.0f, k2Pi*10.0f));
g_params.radius = radius;
g_params.numIterations = 3;
g_params.vorticityConfinement = 0.0f;
g_params.fluidRestDistance = g_params.radius*0.5f;
if (mViscous)
{
g_fluidColor = Vec4(0.0f, 0.8f, 0.2f, 1.0f);
g_params.dynamicFriction = 0.5f;
g_params.viscosity = 10.85f;
g_params.cohesion = 0.25f;
}
else
{
g_params.dynamicFriction = 0.025f;
g_params.viscosity = 0.05f;
}
g_numExtraParticles = 64*1024;
g_diffuseScale = 1.0f;
NvFlexDistanceFieldId sdf = CreateSDF(GetFilePathByPlatform("../../data/armadillo.ply").c_str(), 128);
AddSDF(sdf, Vec3(2.0f, 0.0f, -1.0f), Quat(), 2.0f);
Vec3 meshLower, meshUpper;
g_mesh->GetBounds(meshLower, meshUpper);
Emitter e1;
e1.mDir = Vec3(-1.0f, 0.0f, 0.0f);
e1.mRight = Vec3(0.0f, 0.0f, 1.0f);
e1.mPos = Vec3(-1.0f, 0.15f, 0.50f) + meshLower + Vec3(meshUpper.x, meshUpper.y*0.75f, meshUpper.z*0.5f);
e1.mSpeed = (g_params.radius*0.5f/g_dt)*2.0f; // 2 particle layers per-frame
e1.mEnabled = true;
Emitter e2;
e2.mDir = Vec3(1.0f, 0.0f, 0.0f);
e2.mRight = Vec3(0.0f, 0.0f, -1.0f);
e2.mPos = Vec3(-1.0f, 0.15f, 0.50f) + meshLower + Vec3(0.0f, meshUpper.y*0.75f, meshUpper.z*0.5f);
e2.mSpeed = (g_params.radius*0.5f/g_dt)*2.0f; // 2 particle layers per-frame
e2.mEnabled = true;
g_emitters.push_back(e1);
g_emitters.push_back(e2);
g_emit = true;
// draw options
g_drawEllipsoids = true;
}
bool mViscous;
};
|