void RotatePanorama::rotatePano(PanoramaData& panorama, const Matrix3& transformMat)
{
for (unsigned int i = 0; i < panorama.getNrOfImages(); i++)
{
const SrcPanoImage & image = panorama.getImage(i);
SrcPanoImage copy = image;
double y = image.getYaw();
double p = image.getPitch();
double r = image.getRoll();
Matrix3 mat;
mat.SetRotationPT(DEG_TO_RAD(y), DEG_TO_RAD(p), DEG_TO_RAD(r));
DEBUG_DEBUG("rotation matrix (PT) for img " << i << " << ypr:" << y << " " << p << " " << r << std::endl << mat);
Matrix3 rotated;
rotated = transformMat * mat;
DEBUG_DEBUG("rotation matrix after transform: " << rotated);
rotated.GetRotationPT(y,p,r);
y = RAD_TO_DEG(y);
p = RAD_TO_DEG(p);
r = RAD_TO_DEG(r);
DEBUG_DEBUG("rotated angles of img " << i << ": " << y << " " << p << " " << r);
// Don't update a variable linked to a variable we already updated.
conditional_set(Yaw, y);
conditional_set(Pitch, p);
conditional_set(Roll, r);
if(image.getX()!=0.0 || image.getY()!=0.0 || image.getZ()!=0.0)
{
// rotate translation vector
Vector3 vecRot=transformMat.Inverse().TransformVector(Vector3(image.getZ(), image.getX(), image.getY()));
conditional_set(X, vecRot.y);
conditional_set(Y, vecRot.z);
conditional_set(Z, vecRot.x);
// rotate translation plane
mat.SetRotationPT(DEG_TO_RAD(image.getTranslationPlaneYaw()), DEG_TO_RAD(image.getTranslationPlanePitch()), 0.0);
rotated = transformMat * mat;
rotated.GetRotationPT(y,p,r);
conditional_set(TranslationPlaneYaw, RAD_TO_DEG(y));
conditional_set(TranslationPlanePitch, RAD_TO_DEG(p));
};
panorama.setImage(i, copy);
panorama.imageChanged(i);
}
}
void GLSLProgram<real>::SetupCamera()
{
RenderState<real>* glState = RenderState<real>::Get();
Camera<real>* camera = glState->GetCamera();
Matrix4<float> projectionMatrix = camera->GetProjectionMatrix();
Matrix4<float> viewMatrix = camera->GetGlobalToLocal();
Matrix4<float> modelMatrix = glState->GetModelMatrix();
Matrix4<float> modelViewProjectionMatrix = projectionMatrix * viewMatrix * modelMatrix;
Matrix3<float> normalMatrix = modelMatrix.SubMatrix3( 0, 0 );
normalMatrix.Inverse();
normalMatrix.Transpose();
// Model, view and projection matrices, camera position
glUniformMatrix4fv( mModelMatrixLocation, 1, true, modelMatrix.GetArray() );
glUniformMatrix4fv( mViewMatrixLocation, 1, true, viewMatrix.GetArray() );
glUniformMatrix4fv( mProjectionMatrixLocation, 1, true, projectionMatrix.GetArray() );
glUniformMatrix4fv( mModelViewProjectionMatrixLocation, 1, true, modelViewProjectionMatrix.GetArray() );
glUniformMatrix3fv( mNormalMatrixLocation, 1, true, normalMatrix.GetArray() );
Vector3<float> cameraPosition = camera->GetGlobalPosition();
glUniform3fv( mCameraPositionLocation, 1, (float*)&cameraPosition );
}
void Road2::textureFit(Vector3 p1, Vector3 p2, Vector3 p3, Vector3 p4, int texfit, Vector2* texc, Vector3 pos, Vector3 lastpos, float width)
{
int i;
if (texfit == TEXFIT_BRICKWALL || texfit == TEXFIT_CONCRETEWALL || texfit == TEXFIT_CONCRETEWALLI)
{
Vector3 ps[4];
ps[0] = p1;
ps[1] = p2;
ps[2] = p3;
ps[3] = p4;
Vector3 pref1 = pos;
Vector3 pref2 = lastpos;
//make matrix
Vector3 bx = pref2 - pref1;
bx.normalise();
Vector3 by = Vector3::UNIT_Y;
Vector3 bz = bx.crossProduct(by);
//coordinates change matrix
Matrix3 reverse;
reverse.SetColumn(0, bx);
reverse.SetColumn(1, by);
reverse.SetColumn(2, bz);
Matrix3 forward;
forward = reverse.Inverse();
//transpose
for (i = 0; i < 4; i++)
{
Vector3 trv = forward * (ps[i] - pref1);
if (texfit == TEXFIT_BRICKWALL)
{
float ty = 0.746 - trv.y * 0.25 / 4.5;
// fix overlapping
if (ty > 1)
ty = 1;
texc[i] = Vector2(trv.x / 10.0, ty);
}
if (texfit == TEXFIT_CONCRETEWALL)
{
// fix overlapping
float ty = 0.496 - (trv.y - 0.7) * 0.25 / 4.5;
if (ty > 1)
ty = 1;
texc[i] = Vector2(trv.x / 10.0, ty);
}
if (texfit == TEXFIT_CONCRETEWALLI)
{
float ty = 0.496 + trv.y * 0.25 / 4.5;
// fix overlapping
if (ty > 1)
ty = 1;
texc[i] = Vector2(trv.x / 10.0, ty);
}
}
return;
}
if (texfit == TEXFIT_ROAD || texfit == TEXFIT_ROADS1 || texfit == TEXFIT_ROADS2 || texfit == TEXFIT_ROADS3 || texfit == TEXFIT_ROADS4 || texfit == TEXFIT_CONCRETETOP || texfit == TEXFIT_CONCRETEUNDER)
{
Vector3 ps[4];
ps[0] = p1;
ps[1] = p2;
ps[2] = p3;
ps[3] = p4;
Vector3 pref1 = pos;
Vector3 pref2 = lastpos;
//project
for (i = 0; i < 4; i++)
ps[i].y = 0;
pref1.y = 0;
pref2.y = 0;
//make matrix
Vector3 bx = pref2 - pref1;
bx.normalise();
Vector3 by = Vector3::UNIT_Y;
Vector3 bz = bx.crossProduct(by);
//coordinates change matrix
Matrix3 reverse;
reverse.SetColumn(0, bx);
reverse.SetColumn(1, by);
reverse.SetColumn(2, bz);
Matrix3 forward;
forward = reverse.Inverse();
//transpose
float trvrefz = 0.0;
for (i = 0; i < 4; i++)
{
Vector3 trv = forward * (ps[i] - pref1);
if (texfit == TEXFIT_CONCRETETOP)
{
if (i == 0)
trvrefz = trv.z;
texc[i] = Vector2(trv.x / 10.0, 0.621 + (trv.z - trvrefz) * 0.25 / 4.5);
}
else
{
float v1 = 0.072;
float v2 = 0.423;
if (texfit == TEXFIT_ROADS1)
{
v1 = 0.001;
v2 = 0.036;
};
if (texfit == TEXFIT_ROADS2)
{
v1 = 0.036;
v2 = 0.072;
};
if (texfit == TEXFIT_ROADS3)
{
v1 = 0.423;
v2 = 0.458;
};
if (texfit == TEXFIT_ROADS4)
{
v1 = 0.458;
v2 = 0.493;
};
if (texfit == TEXFIT_CONCRETEUNDER)
{
v1 = 0.496;
v2 = 0.745;
};
if (i < 2)
texc[i] = Vector2(trv.x / 10.0, v1);
else
texc[i] = Vector2(trv.x / 10.0, v2);
}
}
return;
}
//default
for (i = 0; i < 4; i++)
texc[i] = Vector2(0, 0);
}
FlexBody::FlexBody(SceneManager *manager, node_t *nds, int numnds, char* meshname, char* uname, int ref, int nx, int ny, Vector3 offset, Quaternion rot, char* setdef, MaterialFunctionMapper *mfm, Skin *usedSkin, bool enableShadows, MaterialReplacer *mr) : snode(0), faulty(false), mr(mr)
{
nodes=nds;
numnodes=numnds;
cref=ref; nodes[cref].iIsSkin=true;
cx=nx; nodes[cx].iIsSkin=true;
cy=ny; nodes[cy].iIsSkin=true;
coffset=offset;
cameramode=-2; // all cameras
enabled=true;
haveshadows=(manager->getShadowTechnique()==SHADOWTYPE_STENCIL_MODULATIVE || manager->getShadowTechnique()==SHADOWTYPE_STENCIL_ADDITIVE);
havetangents=false;
haveblend=true;
freenodeset=0;
//parsing set definition
char* pos=setdef;
char* end=pos;
char endwas='G';
while (endwas!=0)
{
unsigned int val1, val2;
end=pos;
while (*end!='-' && *end!=',' && *end!=0) end++;
endwas=*end;
*end=0;
val1=strtoul(pos, 0, 10);
if (endwas=='-')
{
pos=end+1;
end=pos;
while (*end!=',' && *end!=0) end++;
endwas=*end;
*end=0;
val2=strtoul(pos, 0, 10);
addinterval(val1, val2);
}
else addinterval(val1, val1);
pos=end+1;
}
/*
// too verbose, removed
for (int i=0; i<freenodeset; i++)
LOG("FLEXBODY node interval "+TOSTRING(i)+": "+TOSTRING(nodeset[i].from)+"-"+TOSTRING(nodeset[i].to));
*/
Vector3 normal = Vector3::UNIT_Y;
Vector3 position = Vector3::ZERO;
Quaternion orientation = Quaternion::ZERO;
if(ref >= 0)
{
normal=(nodes[ny].smoothpos-nodes[ref].smoothpos).crossProduct(nodes[nx].smoothpos-nodes[ref].smoothpos);
normal.normalise();
//position
position=nodes[ref].smoothpos+offset.x*(nodes[nx].smoothpos-nodes[ref].smoothpos)+offset.y*(nodes[ny].smoothpos-nodes[ref].smoothpos);
position=(position+normal*offset.z);
//orientation
Vector3 refx=nodes[nx].smoothpos-nodes[ref].smoothpos;
refx.normalise();
Vector3 refy=refx.crossProduct(normal);
orientation=Quaternion(refx, normal, refy)*rot;
} else
{
// special case!
normal = Vector3::UNIT_Y;
position=nodes[0].smoothpos+offset;
orientation = rot;
}
// load unique mesh (load original mesh and clone it with unique name)
// find group that contains the mesh
String groupname="";
try
{
groupname = ResourceGroupManager::getSingleton().findGroupContainingResource(meshname);
}catch(...)
{
}
if(groupname == "")
{
LOG("FLEXBODY mesh not found: "+String(meshname));
faulty=true;
return;
}
// build new unique mesh name
char uname_mesh[256];
memset(uname_mesh, 0, 254);
strcpy(uname_mesh, uname);
strcat(uname_mesh, "_mesh");
MeshPtr mesh = Ogre::MeshManager::getSingleton().load(meshname, groupname);
MeshPtr newmesh = mesh->clone(uname_mesh);
// now find possible LODs
String basename, ext;
StringUtil::splitBaseFilename(String(meshname), basename, ext);
for(int i=0; i<4;i++)
{
String fn = basename + "_" + TOSTRING(i) + ".mesh";
bool exists = ResourceGroupManager::getSingleton().resourceExistsInAnyGroup(fn);
if(!exists) continue;
float distance = 3;
if(i == 1) distance = 20;
if(i == 2) distance = 50;
if(i == 3) distance = 200;
newmesh->createManualLodLevel(distance, fn);
}
Entity *ent = manager->createEntity(uname, uname_mesh);
MaterialFunctionMapper::replaceSimpleMeshMaterials(ent, ColourValue(0.5, 0.5, 1));
if(mfm) mfm->replaceMeshMaterials(ent);
if(mr) mr->replaceMeshMaterials(ent);
if(usedSkin) usedSkin->replaceMeshMaterials(ent);
//LOG("FLEXBODY unique mesh created: "+String(meshname)+" -> "+String(uname_mesh));
msh=ent->getMesh();
//determine if we have texture coordinates everywhere
havetexture=true;
if (msh->sharedVertexData && msh->sharedVertexData->vertexDeclaration->findElementBySemantic(VES_TEXTURE_COORDINATES)==0) havetexture=false;
for (int i=0; i<msh->getNumSubMeshes(); i++) if (!msh->getSubMesh(i)->useSharedVertices && msh->getSubMesh(i)->vertexData->vertexDeclaration->findElementBySemantic(VES_TEXTURE_COORDINATES)==0) havetexture=false;
if (!havetexture) LOG("FLEXBODY Warning: at least one part of this mesh does not have texture coordinates, switching off texturing!");
if (!havetexture) {havetangents=false;haveblend=false;}; //we can't do this
//detect the anomalous case where a mesh is exported without normal vectors
bool havenormal=true;
if (msh->sharedVertexData && msh->sharedVertexData->vertexDeclaration->findElementBySemantic(VES_NORMAL)==0) havenormal=false;
for (int i=0; i<msh->getNumSubMeshes(); i++) if (!msh->getSubMesh(i)->useSharedVertices && msh->getSubMesh(i)->vertexData->vertexDeclaration->findElementBySemantic(VES_NORMAL)==0) havenormal=false;
if (!havenormal) LOG("FLEXBODY Error: at least one part of this mesh does not have normal vectors, export your mesh with normal vectors! THIS WILL CRASH IN 3.2.1...");
//create optimal VertexDeclaration
VertexDeclaration* optimalVD=HardwareBufferManager::getSingleton().createVertexDeclaration();
optimalVD->addElement(0, 0, VET_FLOAT3, VES_POSITION);
optimalVD->addElement(1, 0, VET_FLOAT3, VES_NORMAL);
if (haveblend) optimalVD->addElement(2, 0, VET_COLOUR_ARGB, VES_DIFFUSE);
if (havetexture) optimalVD->addElement(3, 0, VET_FLOAT2, VES_TEXTURE_COORDINATES);
if (havetangents) optimalVD->addElement(4, 0, VET_FLOAT3, VES_TANGENT);
optimalVD->sort();
optimalVD->closeGapsInSource();
BufferUsageList optimalBufferUsages;
for (size_t u = 0; u <= optimalVD->getMaxSource(); ++u) optimalBufferUsages.push_back(HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY_DISCARDABLE);
//print mesh information
//LOG("FLEXBODY Printing input mesh informations:");
//printMeshInfo(ent->getMesh().getPointer());
//adding color buffers, well get the reference later
if (haveblend)
{
if (msh->sharedVertexData)
{
if (msh->sharedVertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE)==0)
{
//add buffer
int index=msh->sharedVertexData->vertexDeclaration->getMaxSource()+1;
msh->sharedVertexData->vertexDeclaration->addElement(index, 0, VET_COLOUR_ARGB, VES_DIFFUSE);
msh->sharedVertexData->vertexDeclaration->sort();
index=msh->sharedVertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE)->getSource();
HardwareVertexBufferSharedPtr vbuf=HardwareBufferManager::getSingleton().createVertexBuffer(VertexElement::getTypeSize(VET_COLOUR_ARGB), msh->sharedVertexData->vertexCount, HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY_DISCARDABLE);
msh->sharedVertexData->vertexBufferBinding->setBinding(index, vbuf);
}
}
for (int i=0; i<msh->getNumSubMeshes(); i++) if (!msh->getSubMesh(i)->useSharedVertices)
{
if (msh->getSubMesh(i)->vertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE)==0)
{
//add buffer
int index=msh->getSubMesh(i)->vertexData->vertexDeclaration->getMaxSource()+1;
msh->getSubMesh(i)->vertexData->vertexDeclaration->addElement(index, 0, VET_COLOUR_ARGB, VES_DIFFUSE);
msh->getSubMesh(i)->vertexData->vertexDeclaration->sort();
index=msh->getSubMesh(i)->vertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE)->getSource();
HardwareVertexBufferSharedPtr vbuf=HardwareBufferManager::getSingleton().createVertexBuffer(VertexElement::getTypeSize(VET_COLOUR_ARGB), msh->getSubMesh(i)->vertexData->vertexCount, HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY_DISCARDABLE);
msh->getSubMesh(i)->vertexData->vertexBufferBinding->setBinding(index, vbuf);
}
}
}
//tangents for envmapping
if (havetangents)
{
LOG("FLEXBODY preparing for tangents");
unsigned short srcTex, destTex;
bool existing = msh->suggestTangentVectorBuildParams(VES_TANGENT, srcTex, destTex);
if (!existing) msh->buildTangentVectors(VES_TANGENT, srcTex, destTex);
}
//reorg
//LOG("FLEXBODY reorganizing buffers");
if (msh->sharedVertexData)
{
msh->sharedVertexData->reorganiseBuffers(optimalVD, optimalBufferUsages);
msh->sharedVertexData->removeUnusedBuffers();
msh->sharedVertexData->closeGapsInBindings();
}
Mesh::SubMeshIterator smIt = msh->getSubMeshIterator();
unsigned short idx = 0;
while (smIt.hasMoreElements())
{
SubMesh* sm = smIt.getNext();
if (!sm->useSharedVertices)
{
sm->vertexData->reorganiseBuffers(optimalVD, optimalBufferUsages);
sm->vertexData->removeUnusedBuffers();
sm->vertexData->closeGapsInBindings();
}
}
//print mesh information
//LOG("FLEXBODY Printing modififed mesh informations:");
//printMeshInfo(ent->getMesh().getPointer());
//get the buffers
//getMeshInformation(ent->getMesh().getPointer(),vertex_count,vertices,index_count,indices, position, orientation, Vector3(1,1,1));
//getting vertex counts
vertex_count=0;
hasshared=false;
numsubmeshbuf=0;
if (msh->sharedVertexData)
{
vertex_count+=msh->sharedVertexData->vertexCount;
hasshared=true;
}
for (int i=0; i<msh->getNumSubMeshes(); i++)
if (!msh->getSubMesh(i)->useSharedVertices)
{
vertex_count+=msh->getSubMesh(i)->vertexData->vertexCount;
numsubmeshbuf++;
}
LOG("FLEXBODY Vertices in mesh "+String(meshname)+": "+ TOSTRING(vertex_count));
//LOG("Triangles in mesh: %u",index_count / 3);
//getting buffers bindings and data
if (numsubmeshbuf>0)
{
submeshnums=(int*)malloc(sizeof(int)*numsubmeshbuf);
subnodecounts=(int*)malloc(sizeof(int)*numsubmeshbuf);
//C++ is just dumb!
//How can they manage to break such a fundamental programming mechanisms?
//They invented the un-initializable and un-attribuable objects you can't allocate dynamically!
//I'm sure they have a fancy way to do that but they won't pry my precious malloc() from my cold, dead hands! goddamit!
//subpbufs=(HardwareVertexBufferSharedPtr*)malloc(sizeof(HardwareVertexBufferSharedPtr)*numsubmeshbuf);
//subpbufs[0]=HardwareVertexBufferSharedPtr(); //crash!
//subnbufs=(HardwareVertexBufferSharedPtr*)malloc(sizeof(HardwareVertexBufferSharedPtr)*numsubmeshbuf);
//subnbufs[0]=HardwareVertexBufferSharedPtr(); //crash!
if (numsubmeshbuf>=16) LOG("FLEXBODY You have more than 16 submeshes! Blame Bjarne for this crash.");
}
vertices=(Vector3*)malloc(sizeof(Vector3)*vertex_count);
dstpos=(Vector3*)malloc(sizeof(Vector3)*vertex_count);
srcnormals=(Vector3*)malloc(sizeof(Vector3)*vertex_count);
dstnormals=(Vector3*)malloc(sizeof(Vector3)*vertex_count);
if (haveblend)
{
srccolors=(ARGB*)malloc(sizeof(ARGB)*vertex_count);
for (int i=0; i<(int)vertex_count; i++) srccolors[i]=0x00000000;
}
Vector3* vpt=vertices;
Vector3* npt=srcnormals;
int cursubmesh=0;
if (msh->sharedVertexData)
{
sharedcount=(int)msh->sharedVertexData->vertexCount;
//vertices
int source=msh->sharedVertexData->vertexDeclaration->findElementBySemantic(VES_POSITION)->getSource();
sharedpbuf=msh->sharedVertexData->vertexBufferBinding->getBuffer(source);
sharedpbuf->readData(0, msh->sharedVertexData->vertexCount*sizeof(Vector3), (void*)vpt);
vpt+=msh->sharedVertexData->vertexCount;
//normals
source=msh->sharedVertexData->vertexDeclaration->findElementBySemantic(VES_NORMAL)->getSource();
sharednbuf=msh->sharedVertexData->vertexBufferBinding->getBuffer(source);
sharednbuf->readData(0, msh->sharedVertexData->vertexCount*sizeof(Vector3), (void*)npt);
npt+=msh->sharedVertexData->vertexCount;
//colors
if (haveblend)
{
source=msh->sharedVertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE)->getSource();
sharedcbuf=msh->sharedVertexData->vertexBufferBinding->getBuffer(source);
sharedcbuf->writeData(0, msh->sharedVertexData->vertexCount*sizeof(ARGB), (void*)srccolors);
}
}
for (int i=0; i<msh->getNumSubMeshes(); i++) if (!msh->getSubMesh(i)->useSharedVertices)
{
submeshnums[cursubmesh]=i;
subnodecounts[cursubmesh]=(int)msh->getSubMesh(i)->vertexData->vertexCount;
//vertices
int source=msh->getSubMesh(i)->vertexData->vertexDeclaration->findElementBySemantic(VES_POSITION)->getSource();
subpbufs[cursubmesh]=msh->getSubMesh(i)->vertexData->vertexBufferBinding->getBuffer(source);
subpbufs[cursubmesh]->readData(0, msh->getSubMesh(i)->vertexData->vertexCount*sizeof(Vector3), (void*)vpt);
vpt+=msh->getSubMesh(i)->vertexData->vertexCount;
//normals
source=msh->getSubMesh(i)->vertexData->vertexDeclaration->findElementBySemantic(VES_NORMAL)->getSource();
subnbufs[cursubmesh]=msh->getSubMesh(i)->vertexData->vertexBufferBinding->getBuffer(source);
subnbufs[cursubmesh]->readData(0, msh->getSubMesh(i)->vertexData->vertexCount*sizeof(Vector3), (void*)npt);
npt+=msh->getSubMesh(i)->vertexData->vertexCount;
//colors
if (haveblend)
{
source=msh->getSubMesh(i)->vertexData->vertexDeclaration->findElementBySemantic(VES_DIFFUSE)->getSource();
subcbufs[cursubmesh]=msh->getSubMesh(i)->vertexData->vertexBufferBinding->getBuffer(source);
subcbufs[cursubmesh]->writeData(0, msh->getSubMesh(i)->vertexData->vertexCount*sizeof(ARGB), (void*)srccolors);
}
cursubmesh++;
}
//transform
for (int i=0; i<(int)vertex_count; i++)
{
vertices[i]=(orientation*vertices[i])+position;
}
locs=(Locator_t*)malloc(sizeof(Locator_t)*vertex_count);
for (int i=0; i<(int)vertex_count; i++)
{
//search nearest node as the local origin
float mindist=100000.0;
int minnode=-1;
for (int k=0; k<numnodes; k++)
{
if (!isinset(k)) continue;
//if (nodes[k].iswheel) continue;
float dist=(vertices[i]-nodes[k].smoothpos).length();
if (dist<mindist) {mindist=dist;minnode=k;};
}
if (minnode==-1) LOG("FLEXBODY ERROR on mesh "+String(meshname)+": REF node not found");
locs[i].ref=minnode;
nodes[minnode].iIsSkin=true;
// LOG("FLEXBODY distance to "+TOSTRING(minnode)+" "+TOSTRING(mindist));
//search the second nearest node as the X vector
mindist=100000.0;
minnode=-1;
for (int k=0; k<numnodes; k++)
{
if (!isinset(k)) continue;
//if (nodes[k].iswheel) continue;
if (k==locs[i].ref) continue;
float dist=(vertices[i]-nodes[k].smoothpos).length();
if (dist<mindist) {mindist=dist;minnode=k;};
}
if (minnode==-1) LOG("FLEXBODY ERROR on mesh "+String(meshname)+": VX node not found");
locs[i].nx=minnode;
nodes[minnode].iIsSkin=true;
//search another close, orthogonal node as the Y vector
mindist=100000.0;
minnode=-1;
Vector3 vx=nodes[locs[i].nx].smoothpos-nodes[locs[i].ref].smoothpos;
vx.normalise();
for (int k=0; k<numnodes; k++)
{
if (!isinset(k)) continue;
//if (nodes[k].iswheel) continue;
if (k==locs[i].ref) continue;
if (k==locs[i].nx) continue;
Vector3 vt=nodes[k].smoothpos-nodes[locs[i].ref].smoothpos;
vt.normalise();
float cost=vx.dotProduct(vt);
if (cost>0.707 || cost<-0.707) continue; //rejection, fails the orthogonality criterion (+-45 degree)
float dist=(vertices[i]-nodes[k].smoothpos).length();
if (dist<mindist) {mindist=dist;minnode=k;};
}
if (minnode==-1) LOG("FLEXBODY ERROR on mesh "+String(meshname)+": VY node not found");
locs[i].ny=minnode;
nodes[minnode].iIsSkin=true;
/*
//search the final close, orthogonal node as the Z vector
mindist=100000.0;
minnode=-1;
Vector3 vy=nodes[locs[i].ny].smoothpos-nodes[locs[i].ref].smoothpos;
vy.normalise();
for (int k=0; k<numnodes; k++)
{
if (nodes[k].iswheel) continue;
if (k==locs[i].ref) continue;
if (k==locs[i].nx) continue;
if (k==locs[i].ny) continue;
Vector3 vt=nodes[k].smoothpos-nodes[locs[i].ref].smoothpos;
vt.normalise();
float cost=vx.dotProduct(vt);
if (cost>0.707 || cost<-0.707) continue; //rejection, fails the orthogonality criterion (+-45 degree)
cost=vy.dotProduct(vt);
if (cost>0.707 || cost<-0.707) continue; //rejection, fails the orthogonality criterion (+-45 degree)
float dist=(vertices[i]-nodes[k].smoothpos).length();
if (dist<mindist) {mindist=dist;minnode=k;};
}
if (minnode==-1) LOG("FLEXBODY ERROR on mesh "+String(meshname)+": VZ node not found");
locs[i].nz=minnode;
//rright, check orientation
Vector3 xyn=vx.crossProduct(vy);
if (xyn.dotProduct(nodes[locs[i].nz].smoothpos-nodes[locs[i].ref].smoothpos)<0)
{
//the base is messed up
int t=locs[i].nz;
locs[i].nz=locs[i].ny;
locs[i].ny=t;
}
*/
Vector3 vz=(nodes[locs[i].nx].smoothpos-nodes[locs[i].ref].smoothpos).crossProduct(nodes[locs[i].ny].smoothpos-nodes[locs[i].ref].smoothpos);
vz.normalise();
Matrix3 mat;
mat.SetColumn(0, nodes[locs[i].nx].smoothpos-nodes[locs[i].ref].smoothpos);
mat.SetColumn(1, nodes[locs[i].ny].smoothpos-nodes[locs[i].ref].smoothpos);
// mat.SetColumn(2, nodes[locs[i].nz].smoothpos-nodes[locs[i].ref].smoothpos);
mat.SetColumn(2, vz);
mat=mat.Inverse();
//compute coordinates in the newly formed euclidian basis
locs[i].coords=mat*(vertices[i]-nodes[locs[i].ref].smoothpos);
//thats it!
}
//shadow
if (haveshadows)
{
LOG("FLEXBODY preparing for shadow volume");
msh->prepareForShadowVolume(); //we do this always so we have only one datastructure format to manage
msh->buildEdgeList();
}
//adjusting bounds
AxisAlignedBox aab=msh->getBounds();
Vector3 v=aab.getMinimum();
float mi=v.x;
if (v.y<mi) mi=v.y;
if (v.z<mi) mi=v.z;
mi=fabs(mi);
v=aab.getMaximum();
float ma=v.x;
if (ma<v.y) ma=v.y;
if (ma<v.z) ma=v.z;
ma=fabs(ma);
if (mi>ma) ma=mi;
aab.setMinimum(Vector3(-ma,-ma,-ma));
aab.setMaximum(Vector3(ma,ma,ma));
msh->_setBounds(aab, true);
LOG("FLEXBODY show mesh");
//okay, show the mesh now
snode=manager->getRootSceneNode()->createChildSceneNode();
snode->attachObject(ent);
snode->setPosition(position);
//ent->setCastShadows(enableShadows);
#if 0
// XXX TODO: fix 1.7 LODs
if(enable_truck_lod)
{
String lodstr = "FLEXBODY LODs: ";
for(int i=0;i<msh->getNumLodLevels();i++)
{
if(i) lodstr += ", ";
lodstr += TOSTRING(Real(sqrt(msh->getLodLevel(i).fromDepthSquared))) + "m";
if(msh->getLodLevel(i).edgeData)
{
lodstr += "(" + TOSTRING(msh->getLodLevel(i).edgeData->triangles.size()) + " triangles)";
} else
{
if(msh->getEdgeList(i))
lodstr += "(" + TOSTRING(msh->getEdgeList(i)->triangles.size()) +" triangles)";
}
}
LOG(lodstr);
}
#endif //0
for (int i=0; i<(int)vertex_count; i++)
{
Vector3 vz=(nodes[locs[i].nx].smoothpos-nodes[locs[i].ref].smoothpos).crossProduct(nodes[locs[i].ny].smoothpos-nodes[locs[i].ref].smoothpos);
vz.normalise();
Matrix3 mat;
mat.SetColumn(0, nodes[locs[i].nx].smoothpos-nodes[locs[i].ref].smoothpos);
mat.SetColumn(1, nodes[locs[i].ny].smoothpos-nodes[locs[i].ref].smoothpos);
// mat.SetColumn(2, nodes[locs[i].nz].smoothpos-nodes[locs[i].ref].smoothpos);
mat.SetColumn(2, vz);
mat=mat.Inverse();
//compute coordinates in the euclidian basis
srcnormals[i]=mat*(orientation*srcnormals[i]);
}
LOG("FLEXBODY ready");
}
inline Vector3 Contact::CalculateFrictionImpulse(Matrix3 * inverseInertiaTensor) {
Vector3 impulseContact;
marb inverseMass = body[0]->GetInverseMass();
// The equivalent of a cross product in matrices is multiplication
// by a skew symmetric matrix - we build the matrix for converting
// between linear and angular quantities.
Matrix3 impulseToTorque;
impulseToTorque.SetSkewSymmetric(relativeContactPosition[0]);
// Build the matrix to convert contact impulse to change in velocity
// in world coordinates.
Matrix3 deltaVelWorld = impulseToTorque;
deltaVelWorld *= inverseInertiaTensor[0];
deltaVelWorld *= impulseToTorque;
deltaVelWorld *= -1;
// Check if we need to add body two's data
if (body[1]) {
// Set the cross product matrix
impulseToTorque.SetSkewSymmetric(relativeContactPosition[1]);
// Calculate the velocity change matrix
Matrix3 deltaVelWorld2 = impulseToTorque;
deltaVelWorld2 *= inverseInertiaTensor[1];
deltaVelWorld2 *= impulseToTorque;
deltaVelWorld2 *= -1;
// Add to the total delta velocity.
deltaVelWorld += deltaVelWorld2;
// Add to the inverse mass
inverseMass += body[1]->GetInverseMass();
}
// Do a change of basis to convert into contact coordinates.
Matrix3 deltaVelocity = contactToWorld.Transpose();
deltaVelocity *= deltaVelWorld;
deltaVelocity *= contactToWorld;
// Add in the linear velocity change
deltaVelocity.data[0] += inverseMass;
deltaVelocity.data[4] += inverseMass;
deltaVelocity.data[8] += inverseMass;
// Invert to get the impulse needed per unit velocity
Matrix3 impulseMatrix = deltaVelocity.Inverse();
// Find the target velocities to kill
Vector3 velKill(desiredDeltaVelocity,
-contactVelocity.y,
-contactVelocity.z);
// Find the impulse to kill target velocities
impulseContact = impulseMatrix.Transform(velKill);
// Check for exceeding friction
marb planarImpulse = marb_sqrt(impulseContact.y*impulseContact.y + impulseContact.z*impulseContact.z);
if (planarImpulse > impulseContact.x * friction) {
// We need to use dynamic friction
impulseContact.y /= planarImpulse;
impulseContact.z /= planarImpulse;
impulseContact.x = deltaVelocity.data[0] + deltaVelocity.data[1]*friction*impulseContact.y
+ deltaVelocity.data[2]*friction*impulseContact.z;
impulseContact.x = desiredDeltaVelocity / impulseContact.x;
impulseContact.y *= friction * impulseContact.x;
impulseContact.z *= friction * impulseContact.x;
}
return impulseContact;
}
// DIVISION A/B = A * (1/B) = A * Inverse(B)
Matrix3 Matrix3::operator/ ( const Matrix3& myMatrix ) const
{
Matrix3 temp = myMatrix;
return( *this * temp.Inverse() );
}