GeometryRefPtr buildTerrain(Vec2f Dimensions, UInt32 XSubdivisions, UInt32 YSubdivisions)
{
GeoUInt8PropertyRefPtr type = GeoUInt8Property::create();
type->addValue(GL_TRIANGLES);
GeoPnt3fPropertyRefPtr pnts = GeoPnt3fProperty ::create();
GeoVec3fPropertyRefPtr norms = GeoVec3fProperty ::create();
Real32 ZScale(8.0);
for(UInt32 i(0) ; i<XSubdivisions ; ++i)
{
for(UInt32 j(0) ; j<YSubdivisions ; ++j)
{
Real32 Theta(5*3.14159*(static_cast<Real32>(i)/static_cast<Real32>(XSubdivisions))),
ThetaNext(5*3.14159*(static_cast<Real32>(i+1)/static_cast<Real32>(XSubdivisions)));
// the points of the Tris
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+i*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-j*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(Theta)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+i*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-(j+1)*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(Theta)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+(i+1)*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-j*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(ThetaNext)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+i*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-(j+1)*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(Theta)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+(i+1)*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-(j+1)*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(ThetaNext)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
pnts->addValue(Pnt3f(-Dimensions.x()/2.0+(i+1)*(Dimensions.x()/static_cast<Real32>(XSubdivisions)), Dimensions.y()/2.0-j*(Dimensions.y()/static_cast<Real32>(YSubdivisions)), ZScale*osgCos(ThetaNext)));
norms->addValue(Vec3f( 0.0,0.0,1.0));
}
}
GeoUInt32PropertyUnrecPtr lens = GeoUInt32Property::create();
lens->addValue(pnts->size());
GeometryRefPtr Terrain = Geometry::create();
Terrain->setTypes (type);
Terrain->setLengths (lens);
Terrain->setPositions(pnts);
Terrain->setNormals(norms);
calcVertexNormals(Terrain);
return Terrain;
}
void
OgreMeshReader::constructSubMesh(SubMeshInfo &smInfo,
VertexElementStore &vertexElements)
{
OSG_OGRE_LOG(("OgreMeshReader::constructSubMesh: meshName '%s'"
"matName '%s'\n",
smInfo.name.c_str(), smInfo.matName.c_str()));
if(smInfo.skelAnim == true)
{
smInfo.mesh = SkinnedGeometry::create();
}
else
{
smInfo.mesh = Geometry::create();
}
smInfo.meshN = makeNodeFor(smInfo.mesh);
smInfo.meshN->editSFVolume()->setValue(_rootN->getVolume());
setName(smInfo.meshN, smInfo.name);
UInt16 nextIdx = Geometry::TexCoordsIndex;
for(UInt32 i = 0; i < vertexElements.size(); ++i)
{
Int32 usage = -1;
Int16 propSlot = -1;
switch(vertexElements[i].semantic)
{
case VES_POSITION:
usage = GeoProperty::UsageObjectSpace;
propSlot = Geometry::PositionsIndex;
break;
case VES_BLEND_WEIGHTS:
case VES_BLEND_INDICES:
case VES_TEXTURE_COORDINATES:
usage = GeoProperty::UsageParameterSpace;
propSlot = nextIdx++;
break;
case VES_BINORMAL:
case VES_TANGENT:
usage = GeoProperty::UsageTangentSpace;
propSlot = nextIdx++;
break;
case VES_NORMAL:
usage = GeoProperty::UsageTangentSpace;
propSlot = Geometry::NormalsIndex;
break;
case VES_DIFFUSE:
usage = GeoProperty::UsageColorSpace;
propSlot = Geometry::ColorsIndex;
break;
case VES_SPECULAR:
usage = GeoProperty::UsageColorSpace;
propSlot = Geometry::SecondaryColorsIndex;
break;
}
if(usage >= 0)
{
vertexElements[i].prop->setUsage(usage);
}
if(propSlot >= 0)
{
OSG_OGRE_LOG(("OgreMeshReader::constructSubMesh: vertex elem semantic '%s'"
" using property '%u'\n",
getVertexElementSemanticString(vertexElements[i].semantic).c_str(),
propSlot));
smInfo.mesh->setProperty(vertexElements[i].prop, propSlot);
smInfo.mesh->setIndex (smInfo.propIdx, propSlot);
}
else
{
SWARNING << "OgreMeshReader::constructSubMesh: no property slot found for "
<< "vertex elem semantic '"
<< getVertexElementSemanticString(vertexElements[i].semantic)
<< "'. Skipping." << std::endl;
}
if(vertexElements[i].semantic == VES_BLEND_INDICES)
{
SkinnedGeometry* skin =
dynamic_pointer_cast<SkinnedGeometry>(smInfo.mesh);
skin->setJointIndexProperty(propSlot);
}
if(vertexElements[i].semantic == VES_BLEND_WEIGHTS)
{
SkinnedGeometry* skin =
dynamic_pointer_cast<SkinnedGeometry>(smInfo.mesh);
skin->setJointWeightProperty(propSlot);
}
}
GeoUInt8PropertyUnrecPtr types = GeoUInt8Property::create();
switch(smInfo.meshOp)
{
case SMO_POINT_LIST:
types->addValue(GL_POINTS);
break;
case SMO_LINE_LIST:
types->addValue(GL_LINES);
break;
case SMO_LINE_STRIP:
types->addValue(GL_LINE_STRIP);
break;
case SMO_TRIANGLE_LIST:
types->addValue(GL_TRIANGLES);
break;
case SMO_TRIANGLE_STRIP:
types->addValue(GL_TRIANGLE_STRIP);
break;
case SMO_TRIANGLE_FAN:
types->addValue(GL_TRIANGLE_FAN);
break;
}
GeoUInt32PropertyUnrecPtr lengths = GeoUInt32Property::create();
lengths->addValue(smInfo.propIdx->size());
smInfo.mesh->setTypes (types);
smInfo.mesh->setLengths(lengths);
constructMaterial(smInfo);
if(smInfo.skelAnim == true && _skel != NULL)
{
SkinnedGeometry* skin = dynamic_pointer_cast<SkinnedGeometry>(smInfo.mesh);
if(skin != NULL)
{
skin->setSkeleton (_skel);
skin->setRenderMode(SkinnedGeometry::RMSkeleton);
}
}
_rootN->addChild(smInfo.meshN);
}
