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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/*
* Copyright (c) 2008-2017, NVIDIA CORPORATION. All rights reserved.
*
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited.
*/
#include "GeodesicScene.h"
#include "scene/SceneController.h"
#include <NvClothExt/ClothFabricCooker.h>
#include "ClothMeshGenerator.h"
#include <NvCloth/Fabric.h>
#include <NvCloth/Solver.h>
#include <NvCloth/Cloth.h>
#include <NvCloth/Factory.h>
#include "Renderer.h"
#include "renderer/RenderUtils.h"
DECLARE_SCENE_NAME(GeodesicScene, "Geodesic Scene")
void GeodesicScene::initializeCloth(int index, physx::PxVec3 offset, bool geodesic)
{
///////////////////////////////////////////////////////////////////////
ClothMeshData clothMesh;
physx::PxMat44 transform = PxTransform(PxVec3(0.f, 13.f, 0.f) + offset, PxQuat(0, PxVec3(1.f, 0.f, 0.f)));
clothMesh.GeneratePlaneCloth(6.f, 10.0f, 39, 59, false, transform,true,true);
clothMesh.AttachClothPlaneByAngles(39, 59);
/*for(int y = 0; y < 60; y++)
{
for(int x = 0; x < 40; x++)
{
//clothMesh.mVertices[x + y * 40].y = transform.transform(PxVec3(0.0f, y&2?0.25f:-0.25f, 0.0f)).y;
PxVec3 pos = transform.transform(PxVec3(0.0f, y & 1 ? 0.1f : -0.1f, 10.0f * (float)(y>>2)/(float)60.0f));
clothMesh.mVertices[x + y * 40].y = pos.y;
clothMesh.mVertices[x + y * 40].z = pos.z;
}
}*/
mClothActor[index] = new ClothActor;
nv::cloth::ClothMeshDesc meshDesc = clothMesh.GetClothMeshDesc();
{
mClothActor[index]->mClothRenderMesh = new ClothRenderMesh(meshDesc);
mClothActor[index]->mClothRenderable = getSceneController()->getRenderer().createRenderable(*(static_cast<IRenderMesh*>(mClothActor[index]->mClothRenderMesh)), *getSceneController()->getDefaultMaterial());
mClothActor[index]->mClothRenderable->setColor(getRandomPastelColor());
}
nv::cloth::Vector<int32_t>::Type phaseTypeInfo;
mFabric[index] = NvClothCookFabricFromMesh(getSceneController()->getFactory(), meshDesc, physx::PxVec3(0.0f, 0.0f, 1.0f),
&phaseTypeInfo, geodesic);
trackFabric(mFabric[index]);
// Initialize start positions and masses for the actual cloth instance
// (note: the particle/vertex positions do not have to match the mesh description here. Set the positions to the initial shape of this cloth instance)
std::vector<physx::PxVec4> particlesCopy;
particlesCopy.resize(clothMesh.mVertices.size());
physx::PxVec3 clothOffset = transform.getPosition();
for (int i = 0; i < (int)clothMesh.mVertices.size(); i++)
{
// To put attachment point closer to each other
if(clothMesh.mInvMasses[i] < 1e-6)
clothMesh.mVertices[i] = (clothMesh.mVertices[i] - clothOffset)*0.99f + clothOffset;
particlesCopy[i] = physx::PxVec4(clothMesh.mVertices[i], clothMesh.mInvMasses[i]); // w component is 1/mass, or 0.0f for anchored/fixed particles
}
// Create the cloth from the initial positions/masses and the fabric
mClothActor[index]->mCloth = getSceneController()->getFactory()->createCloth(nv::cloth::Range<physx::PxVec4>(&particlesCopy[0], &particlesCopy[0] + particlesCopy.size()), *mFabric[index]);
particlesCopy.clear(); particlesCopy.shrink_to_fit();
mClothActor[index]->mCloth->setGravity(physx::PxVec3(0.0f, -9.8f, 0.0f));
mClothActor[index]->mCloth->setTetherConstraintStiffness(1.0f);
// Setup phase configs
std::vector<nv::cloth::PhaseConfig> phases(mFabric[index]->getNumPhases());
for (int i = 0; i < (int)phases.size(); i++)
{
phases[i].mPhaseIndex = i;
phases[i].mStiffness = 1.0f;
phases[i].mStiffnessMultiplier = 1.0f;
phases[i].mCompressionLimit = 1.0f;
phases[i].mStretchLimit = 1.0f;
}
mClothActor[index]->mCloth->setPhaseConfig(nv::cloth::Range<nv::cloth::PhaseConfig>(&phases.front(), &phases.back()));
trackClothActor(mClothActor[index]);
// Add the cloth to the solver for simulation
addClothToSolver(mClothActor[index], mSolver);
}
void GeodesicScene::onInitialize()
{
mSolver = getSceneController()->getFactory()->createSolver();
trackSolver(mSolver);
initializeCloth(0, physx::PxVec3(-5.0f, 0.0f, 0.0f), false);
initializeCloth(1, physx::PxVec3(4.0f, 0.0f, 0.0f), true);
mTime = 0.0f;
{
IRenderMesh* mesh = getSceneController()->getRenderer().getPrimitiveRenderMesh(PrimitiveRenderMeshType::Plane);
Renderable* plane = getSceneController()->getRenderer().createRenderable(*mesh, *getSceneController()->getDefaultPlaneMaterial());
plane->setTransform(PxTransform(PxVec3(0.f, 0.f, 0.f), PxQuat(PxPiDivTwo, PxVec3(0.f, 0.f, 1.f))));
plane->setScale(PxVec3(1000.f));
trackRenderable(plane);
}
}
|