void
FltExportVisitor::writeMesh( const osg::Geode& geode, const osg::Geometry& geom )
{
enum DrawMode
{
SOLID_BACKFACE = 0,
SOLID_NO_BACKFACE = 1,
WIREFRAME_CLOSED = 2,
WIREFRAME_NOT_CLOSED = 3,
SURROUND_ALTERNATE_COLOR = 4,
OMNIDIRECTIONAL_LIGHT = 8,
UNIDIRECTIONAL_LIGHT = 9,
BIDIRECTIONAL_LIGHT = 10
};
enum TemplateMode
{
FIXED_NO_ALPHA_BLENDING = 0,
FIXED_ALPHA_BLENDING = 1,
AXIAL_ROTATE_WITH_ALPHA_BLENDING = 2,
POINT_ROTATE_WITH_ALPHA_BLENDING = 4
};
// const unsigned int TERRAIN_BIT = 0x80000000u >> 0;
//const unsigned int NO_COLOR_BIT = 0x80000000u >> 1;
//const unsigned int NO_ALT_COLOR_BIT = 0x80000000u >> 2;
const unsigned int PACKED_COLOR_BIT = 0x80000000u >> 3;
//const unsigned int FOOTPRINT_BIT = 0x80000000u >> 4; // Terrain culture cutout
const unsigned int HIDDEN_BIT = 0x80000000u >> 5;
//const unsigned int ROOFLINE_BIT = 0x80000000u >> 6;
uint32 flags( PACKED_COLOR_BIT );
if (geode.getNodeMask() == 0)
flags |= HIDDEN_BIT;
enum LightMode
{
FACE_COLOR = 0,
VERTEX_COLOR = 1,
FACE_COLOR_LIGHTING = 2,
VERTEX_COLOR_LIGHTING = 3
};
int8 lightMode;
osg::Vec4 packedColorRaw( 1., 1., 1., 1. );
uint16 transparency( 0 );
if (geom.getColorBinding() == osg::Geometry::BIND_PER_VERTEX)
{
if (isLit( geom ))
lightMode = VERTEX_COLOR_LIGHTING;
else
lightMode = VERTEX_COLOR;
}
else
{
const osg::Vec4Array* c = dynamic_cast<const osg::Vec4Array*>( geom.getColorArray() );
if (c && (c->size() > 0))
{
packedColorRaw = (*c)[0];
transparency = flt::uint16((1. - packedColorRaw[3]) * (double)0xffff);
}
if (isLit( geom ))
lightMode = FACE_COLOR_LIGHTING;
else
lightMode = FACE_COLOR;
}
uint32 packedColor;
packedColor = (int)(packedColorRaw[3]*255) << 24 |
(int)(packedColorRaw[2]*255) << 16 | (int)(packedColorRaw[1]*255) << 8 |
(int)(packedColorRaw[0]*255);
int8 drawType;
osg::StateSet const* ss = getCurrentStateSet();
{
// Default to no facet culling
drawType = SOLID_NO_BACKFACE;
// If facet-culling isn't *dis*abled, check whether the CullFace mode is BACK
if (ss->getMode(GL_CULL_FACE) & osg::StateAttribute::ON)
{
osg::CullFace const* cullFace = static_cast<osg::CullFace const*>(
ss->getAttribute(osg::StateAttribute::CULLFACE) );
if( cullFace->getMode() == osg::CullFace::BACK )
drawType = SOLID_BACKFACE;
// Note: OpenFlt can't handle FRONT or FRONT_AND_BACK settings, so ignore these(??)
}
}
// Determine the material properties for the face
int16 materialIndex( -1 );
if (isLit( geom ))
{
osg::Material const* currMaterial = static_cast<osg::Material const*>(
ss->getAttribute(osg::StateAttribute::MATERIAL) );
materialIndex = _materialPalette->add(currMaterial);
}
// Get base texture
int16 textureIndex( -1 );
if (isTextured( 0, geom ))
{
const osg::Texture2D* texture = static_cast<const osg::Texture2D*>(
ss->getTextureAttribute( 0, osg::StateAttribute::TEXTURE ) );
if (texture != NULL)
textureIndex = _texturePalette->add( 0, texture );
else
{
std::string warning( "fltexp: Mesh is textured, but Texture2D StateAttribute is NULL." );
osg::notify( osg::WARN ) << warning << std::endl;
_fltOpt->getWriteResult().warn( warning );
}
}
// Set the appropriate template mode based
// on blending or Billboarding.
TemplateMode templateMode( FIXED_NO_ALPHA_BLENDING );
const osg::Billboard* bb = dynamic_cast< const osg::Billboard* >( &geode );
if (bb != NULL)
{
if( bb->getMode() == osg::Billboard::AXIAL_ROT )
templateMode = AXIAL_ROTATE_WITH_ALPHA_BLENDING;
else
templateMode = POINT_ROTATE_WITH_ALPHA_BLENDING;
}
else if ( ss->getMode( GL_BLEND ) & osg::StateAttribute::ON )
{
const osg::BlendFunc* bf = static_cast<const osg::BlendFunc*>(
ss->getAttribute(osg::StateAttribute::BLENDFUNC) );
if( (bf->getSource() == osg::BlendFunc::SRC_ALPHA) &&
(bf->getDestination() == osg::BlendFunc::ONE_MINUS_SRC_ALPHA) )
templateMode = FIXED_ALPHA_BLENDING;
}
uint16 length( 84 );
IdHelper id( *this, geode.getName() );
_records->writeInt16( (int16) MESH_OP );
_records->writeUInt16( length );
_records->writeID( id );
_records->writeInt32( 0 ); // Reserved
_records->writeInt32( 0 ); // IR color code
_records->writeInt16( 0 ); // Relative priority
_records->writeInt8( drawType ); // Draw type
_records->writeInt8( 0 ); // Texture white
_records->writeInt16( -1 ); // Color name index
_records->writeInt16( -1 ); // Alternate color name index
_records->writeInt8( 0 ); // Reserved
_records->writeInt8( templateMode ); // Template (billboard)
_records->writeInt16( -1 ); // Detail texture pattern index
_records->writeInt16( textureIndex ); // Texture pattern index
_records->writeInt16( materialIndex ); // Material index
_records->writeInt16( 0 ); // Surface material code
_records->writeInt16( 0 ); // Feature ID
_records->writeInt32( 0 ); // IR material code
_records->writeUInt16( transparency ); // Transparency
_records->writeInt8( 0 ); // LOD generation control
_records->writeInt8( 0 ); // Line style index
_records->writeUInt32( flags ); // Flags
_records->writeInt8( lightMode ); // Light mode
_records->writeFill( 7 ); // Reserved
_records->writeUInt32( packedColor ); // Packed color, primary
_records->writeUInt32( 0x00ffffff ); // Packed color, alternate
_records->writeInt16( -1 ); // Texture mapping index
_records->writeInt16( 0 ); // Reserved
_records->writeInt32( -1 ); // Primary color index
_records->writeInt32( -1 ); // Alternate color index
// Next four bytes:
// 15.8: two 2-byte "reserved" fields
// 15.9: one 4-byte "reserved" field
_records->writeInt16( 0 ); // Reserved
_records->writeInt16( -1 ); // Shader index
}
void
FltExportVisitor::writeLocalVertexPool( const osg::Geometry& geom )
{
// Attribute Mask
static const unsigned int HAS_POSITION = 0x80000000u >> 0;
// static const unsigned int HAS_COLOR_INDEX = 0x80000000u >> 1;
static const unsigned int HAS_RGBA_COLOR = 0x80000000u >> 2;
static const unsigned int HAS_NORMAL = 0x80000000u >> 3;
static const unsigned int HAS_BASE_UV = 0x80000000u >> 4;
static const unsigned int HAS_UV_LAYER1 = 0x80000000u >> 5;
static const unsigned int HAS_UV_LAYER2 = 0x80000000u >> 6;
static const unsigned int HAS_UV_LAYER3 = 0x80000000u >> 7;
static const unsigned int HAS_UV_LAYER4 = 0x80000000u >> 8;
static const unsigned int HAS_UV_LAYER5 = 0x80000000u >> 9;
static const unsigned int HAS_UV_LAYER6 = 0x80000000u >> 10;
static const unsigned int HAS_UV_LAYER7 = 0x80000000u >> 11;
const osg::Array* v = geom.getVertexArray();
uint32 numVerts( v->getNumElements() );
osg::ref_ptr< const osg::Vec3dArray > v3 = VertexPaletteManager::asVec3dArray( v, numVerts );
if (!v3)
{
std::string warning( "fltexp: writeLocalVertexPool: VertexArray is not Vec3Array." );
osg::notify( osg::WARN ) << warning << std::endl;
_fltOpt->getWriteResult().warn( warning );
return;
}
// Compute attribute bits and vertex size.
const osg::Array* c = geom.getColorArray();
const osg::Array* n = geom.getNormalArray();
const osg::Array* t = geom.getTexCoordArray( 0 );
osg::ref_ptr< const osg::Vec4Array > c4 = VertexPaletteManager::asVec4Array( c, numVerts );
osg::ref_ptr< const osg::Vec3Array > n3 = VertexPaletteManager::asVec3Array( n, numVerts );
osg::ref_ptr< const osg::Vec2Array > t2 = VertexPaletteManager::asVec2Array( t, numVerts );
if (c && !c4)
return;
if (n && !n3)
return;
if (t && !t2)
return;
std::vector< osg::ref_ptr< const osg::Vec2Array > > mtc;
mtc.resize( 8 );
int unit=1;
for( ;unit<8; unit++)
mtc[ unit ] = VertexPaletteManager::asVec2Array( geom.getTexCoordArray( unit ), numVerts );
uint32 attr( HAS_POSITION );
unsigned int vertSize( sizeof( float64 ) * 3 );
if ( ( c4 != NULL ) && ( geom.getColorBinding() == osg::Geometry::BIND_PER_VERTEX) )
{
attr |= HAS_RGBA_COLOR;
vertSize += sizeof( unsigned int );
}
if ( ( n3 != NULL ) && ( geom.getNormalBinding() == osg::Geometry::BIND_PER_VERTEX) )
{
attr |= HAS_NORMAL;
vertSize += ( sizeof( float32 ) * 3 );
}
if ( t2 != NULL )
{
attr |= HAS_BASE_UV;
vertSize += ( sizeof( float32 ) * 2 );
}
// Add multitex
if (isTextured( 1, geom ))
{
attr |= HAS_UV_LAYER1;
vertSize += ( sizeof( float32 ) * 2 );
}
if (isTextured( 2, geom ))
{
attr |= HAS_UV_LAYER2;
vertSize += ( sizeof( float32 ) * 2 );
}
if (isTextured( 3, geom ))
{
attr |= HAS_UV_LAYER3;
vertSize += ( sizeof( float32 ) * 2 );
}
if (isTextured( 4, geom ))
{
attr |= HAS_UV_LAYER4;
vertSize += ( sizeof( float32 ) * 2 );
}
if (isTextured( 5, geom ))
{
attr |= HAS_UV_LAYER5;
vertSize += ( sizeof( float32 ) * 2 );
}
if (isTextured( 6, geom ))
{
attr |= HAS_UV_LAYER6;
vertSize += ( sizeof( float32 ) * 2 );
}
if (isTextured( 7, geom ))
{
attr |= HAS_UV_LAYER7;
vertSize += ( sizeof( float32 ) * 2 );
}
unsigned int maxVerts = (0xffff - 12) / vertSize;
unsigned int thisVertCount = (maxVerts > numVerts) ? numVerts : maxVerts;
unsigned int currentIndexLimit = maxVerts;
uint16 length( 12 + (vertSize * thisVertCount) );
_records->writeInt16( (int16) LOCAL_VERTEX_POOL_OP );
_records->writeUInt16( length );
_records->writeUInt32( numVerts ); // number of vertices
_records->writeUInt32( attr ); // attribute bits
unsigned int idx;
for( idx=0; idx<numVerts; idx++ )
{
_records->writeVec3d( (*v3)[ idx ] );
if (attr & HAS_RGBA_COLOR)
{
osg::Vec4 color = (*c4)[ idx ];
unsigned int packedColor = (int)(color[3]*255) << 24 |
(int)(color[2]*255) << 16 | (int)(color[1]*255) << 8 |
(int)(color[0]*255);
_records->writeUInt32( packedColor );
}
if (attr & HAS_NORMAL)
_records->writeVec3f( (*n3)[ idx ] );
if (attr & HAS_BASE_UV)
_records->writeVec2f( (*t2)[ idx ] );
if (attr & HAS_UV_LAYER1)
_records->writeVec2f( (*mtc[1])[ idx ] );
if (attr & HAS_UV_LAYER2)
_records->writeVec2f( (*mtc[2])[ idx ] );
if (attr & HAS_UV_LAYER3)
_records->writeVec2f( (*mtc[3])[ idx ] );
if (attr & HAS_UV_LAYER4)
_records->writeVec2f( (*mtc[4])[ idx ] );
if (attr & HAS_UV_LAYER5)
_records->writeVec2f( (*mtc[5])[ idx ] );
if (attr & HAS_UV_LAYER6)
_records->writeVec2f( (*mtc[6])[ idx ] );
if (attr & HAS_UV_LAYER7)
_records->writeVec2f( (*mtc[7])[ idx ] );
// Handle continuation record if necessary.
if ( (idx+1 == currentIndexLimit) && (idx+1 < numVerts) )
{
currentIndexLimit += maxVerts;
unsigned int remaining( numVerts - (idx+1) );
thisVertCount = (maxVerts > remaining) ? remaining : maxVerts;
writeContinuationRecord( (vertSize * thisVertCount) );
}
}
}
void
GeometryValidator::apply(osg::Geometry& geom)
{
if ( geom.getVertexArray() == 0L )
{
OE_NOTICE << LC << "NULL vertex array!!\n";
return;
}
unsigned numVerts = geom.getVertexArray()->getNumElements();
if ( numVerts == 0 )
{
OE_NOTICE << LC << "No verts!! name=" << geom.getName() << "\n";
return;
}
#if OSG_VERSION_GREATER_OR_EQUAL(3,1,9)
std::set<osg::BufferObject*> _vbos;
osg::Geometry::ArrayList arrays;
geom.getArrayList(arrays);
for(unsigned i=0; i<arrays.size(); ++i)
{
osg::Array* a = arrays[i].get();
if ( a == NULL )
{
OE_NOTICE << LC << "Found a NULL array\n";
}
else if ( a->getBinding() == a->BIND_OVERALL && a->getNumElements() != 1 )
{
OE_NOTICE << LC << "Found an array with BIND_OVERALL and size <> 1\n";
}
else if ( a->getBinding() == a->BIND_PER_VERTEX && a->getNumElements() != numVerts )
{
OE_NOTICE << LC << "Found BIND_PER_VERTEX with wrong number of elements (expecting " << numVerts << "; found " << a->getNumElements() << ")\n";
}
_vbos.insert( a->getVertexBufferObject() );
}
if ( _vbos.size() != 1 )
{
OE_NOTICE << LC << "Found a Geometry that uses more than one VBO (non-optimal sharing)\n";
}
#else // pre-3.1.9 ... phase out.
if ( geom.getColorArray() )
{
if ( geom.getColorBinding() == osg::Geometry::BIND_OVERALL && geom.getColorArray()->getNumElements() != 1 )
{
OE_NOTICE << "Color: BIND_OVERALL with wrong number of elements" << std::endl;
}
else if ( geom.getColorBinding() == osg::Geometry::BIND_PER_VERTEX && geom.getColorArray()->getNumElements() != numVerts )
{
OE_NOTICE << "Color: BIND_PER_VERTEX with colors.size != verts.size" << std::endl;
}
}
if ( geom.getNormalArray() )
{
if ( geom.getNormalBinding() == osg::Geometry::BIND_OVERALL && geom.getNormalArray()->getNumElements() != 1 )
{
OE_NOTICE << "Normal: BIND_OVERALL with wrong number of elements" << std::endl;
}
else if ( geom.getNormalBinding() == osg::Geometry::BIND_PER_VERTEX && geom.getNormalArray()->getNumElements() != numVerts )
{
OE_NOTICE << "Normal: BIND_PER_VERTEX with normals.size != verts.size" << std::endl;
}
}
#endif
const osg::Geometry::PrimitiveSetList& plist = geom.getPrimitiveSetList();
std::set<osg::BufferObject*> _ebos;
for( osg::Geometry::PrimitiveSetList::const_iterator p = plist.begin(); p != plist.end(); ++p )
{
osg::PrimitiveSet* pset = p->get();
osg::DrawArrays* da = dynamic_cast<osg::DrawArrays*>(pset);
if ( da )
{
if ( da->getFirst() >= numVerts )
{
OE_NOTICE << LC << "DrawArrays: first > numVerts\n";
}
if ( da->getFirst()+da->getCount() > numVerts )
{
OE_NOTICE << LC << "DrawArrays: first/count out of bounds\n";
}
if ( da->getCount() < 1 )
{
OE_NOTICE << LC << "DrawArrays: count is zero\n";
}
}
bool isDe = pset->getDrawElements() != 0L;
osg::DrawElementsUByte* de_byte = dynamic_cast<osg::DrawElementsUByte*>(pset);
if ( de_byte )
{
validateDE(de_byte, 0xFF, numVerts );
_ebos.insert( de_byte->getElementBufferObject() );
}
osg::DrawElementsUShort* de_short = dynamic_cast<osg::DrawElementsUShort*>(pset);
if ( de_short )
{
validateDE(de_short, 0xFFFF, numVerts );
_ebos.insert( de_short->getElementBufferObject() );
}
osg::DrawElementsUInt* de_int = dynamic_cast<osg::DrawElementsUInt*>(pset);
if ( de_int )
{
validateDE(de_int, 0xFFFFFFFF, numVerts );
_ebos.insert( de_int->getElementBufferObject() );
}
if ( pset->getNumIndices() == 0 )
{
OE_NOTICE << LC << "Primset: num elements = 0; class=" << pset->className() << ", name=" << pset->getName() << "\n";
}
else if ( pset->getType() >= GL_TRIANGLES && pset->getNumIndices() < 3 )
{
OE_NOTICE << LC << "Primset: not enough indicies for surface prim type\n";
}
else if ( pset->getType() >= GL_LINE_STRIP && pset->getNumIndices() < 2 )
{
OE_NOTICE << LC << "Primset: not enough indicies for linear prim type\n";
}
else if ( isDe && pset->getType() == GL_LINES && pset->getNumIndices() % 2 != 0 )
{
OE_NOTICE << LC << "Primset: non-even index count for GL_LINES\n";
}
}
if ( _ebos.size() != 1 )
{
OE_NOTICE << LC << "Found a Geometry that uses more than one EBO (non-optimal sharing)\n";
}
}
void Tessellator::collectTessellation(osg::Geometry &geom, unsigned int originalIndex)
{
osg::Vec3Array* vertices = dynamic_cast<osg::Vec3Array*>(geom.getVertexArray());
VertexPtrToIndexMap vertexPtrToIndexMap;
// populate the VertexPtrToIndexMap.
for(unsigned int vi=0;vi<vertices->size();++vi)
{
vertexPtrToIndexMap[&((*vertices)[vi])] = vi;
}
handleNewVertices(geom, vertexPtrToIndexMap);
// we don't properly handle per primitive and per primitive_set bindings yet
// will need to address this soon. Robert Oct 2002.
{
osg::Vec3Array* normals = NULL; // GWM Sep 2002 - add normals for extra facets
int iprim=0;
if (geom.getNormalBinding()==osg::Geometry::BIND_PER_PRIMITIVE ||
geom.getNormalBinding()==osg::Geometry::BIND_PER_PRIMITIVE_SET)
{
normals = dynamic_cast<osg::Vec3Array*>(geom.getNormalArray()); // GWM Sep 2002
}
// GWM Dec 2003 - needed to add colours for extra facets
osg::Vec4Array* cols4 = NULL; // GWM Dec 2003 colours are vec4
osg::Vec3Array* cols3 = NULL; // GWM Dec 2003 colours are vec3
if (geom.getColorBinding()==osg::Geometry::BIND_PER_PRIMITIVE ||
geom.getColorBinding()==osg::Geometry::BIND_PER_PRIMITIVE_SET)
{
Array* colours = geom.getColorArray(); // GWM Dec 2003 - need to duplicate face colours
switch (colours->getType()) {
case osg::Array::Vec4ArrayType:
cols4=dynamic_cast<osg::Vec4Array *> (colours);
break;
case osg::Array::Vec3ArrayType:
cols3=dynamic_cast<osg::Vec3Array *> (colours);
break;
default:
break;
}
}
// GWM Dec 2003 - these holders need to go outside the loop to
// retain the flat shaded colour &/or normal for each tessellated polygon
osg::Vec3 norm(0.0f,0.0f,0.0f);
osg::Vec4 primCol4(0.0f,0.0f,0.0f,1.0f);
osg::Vec3 primCol3(0.0f,0.0f,0.0f);
for(PrimList::iterator primItr=_primList.begin();
primItr!=_primList.end();
++primItr, ++_index)
{
Prim* prim=primItr->get();
int ntris=0;
if(vertexPtrToIndexMap.size() <= 255)
{
osg::DrawElementsUByte* elements = new osg::DrawElementsUByte(prim->_mode);
for(Prim::VecList::iterator vitr=prim->_vertices.begin();
vitr!=prim->_vertices.end();
++vitr)
{
elements->push_back(vertexPtrToIndexMap[*vitr]);
}
// add to the drawn primitive list.
geom.addPrimitiveSet(elements);
ntris=elements->getNumIndices()/3;
}
else if(vertexPtrToIndexMap.size() > 255 && vertexPtrToIndexMap.size() <= 65535)
{
osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(prim->_mode);
for(Prim::VecList::iterator vitr=prim->_vertices.begin();
vitr!=prim->_vertices.end();
++vitr)
{
elements->push_back(vertexPtrToIndexMap[*vitr]);
}
// add to the drawn primitive list.
geom.addPrimitiveSet(elements);
ntris=elements->getNumIndices()/3;
}
else
{
osg::DrawElementsUInt* elements = new osg::DrawElementsUInt(prim->_mode);
for(Prim::VecList::iterator vitr=prim->_vertices.begin();
vitr!=prim->_vertices.end();
++vitr)
{
elements->push_back(vertexPtrToIndexMap[*vitr]);
}
// add to the drawn primitive list.
geom.addPrimitiveSet(elements);
ntris=elements->getNumIndices()/3;
}
if (primItr==_primList.begin())
{ // first primitive so collect primitive normal & colour.
if (normals) {
if (geom.getNormalBinding()==osg::Geometry::BIND_PER_PRIMITIVE)
norm=(*normals)[originalIndex + _extraPrimitives];
else
norm=(*normals)[iprim]; // GWM Sep 2002 the flat shaded normal
}
if (cols4) {
primCol4=(*cols4)[iprim]; // GWM Dec 2003 the flat shaded rgba colour
if (_index>=cols4->size()) {
cols4->push_back(primCol4); // GWM Dec 2003 add flat shaded colour for new facet
}
}
if (cols3) {
primCol3=(*cols3)[iprim]; // GWM Dec 2003 flat shaded rgb colour
if (_index>=cols3->size()) {
cols3->push_back(primCol3); // GWM Dec 2003 add flat shaded colour for new facet
}
}
}
else
{ // later primitives use same colour
if (normals)
{
if (geom.getNormalBinding()==osg::Geometry::BIND_PER_PRIMITIVE)
{
_extraPrimitives++;
normals->insert(normals->begin() + originalIndex + _extraPrimitives, norm);
}
else
normals->push_back(norm); // GWM Sep 2002 add flat shaded normal for new facet
}
if (cols4 && _index>=cols4->size()) {
cols4->push_back(primCol4); // GWM Dec 2003 add flat shaded colour for new facet
}
if (cols3 && _index>=cols3->size()) {
if (cols3) cols3->push_back(primCol3); // GWM Dec 2003 add flat shaded colour for new facet
}
if (prim->_mode==GL_TRIANGLES) {
if (geom.getNormalBinding()==osg::Geometry::BIND_PER_PRIMITIVE_SET ||
geom.getNormalBinding()==osg::Geometry::BIND_PER_PRIMITIVE) { // need one per triangle? Not one per set.
for (int ii=1; ii<ntris; ii++) {
if (normals) normals->push_back(norm); // GWM Sep 2002 add flat shaded normal for new facet
}
}
if (geom.getColorBinding()==osg::Geometry::BIND_PER_PRIMITIVE_SET ||
geom.getColorBinding()==osg::Geometry::BIND_PER_PRIMITIVE) { // need one per triangle? Not one per set.
for (int ii=1; ii<ntris; ii++) {
if (cols3 && _index>=cols3->size()) {
if (cols3) cols3->push_back(primCol3);
}
if (cols4 && _index>=cols4->size()) {
if (cols4) cols4->push_back(primCol4);
}
_index++;
}
}
}
// osg::notify(osg::WARN)<<"Add: "<< iprim << std::endl;
}
iprim++; // GWM Sep 2002 count which normal we should use
}
}
}
void Tessellator::handleNewVertices(osg::Geometry& geom,VertexPtrToIndexMap &vertexPtrToIndexMap)
{
if (!_newVertexList.empty())
{
osg::Vec3Array* vertices = dynamic_cast<osg::Vec3Array*>(geom.getVertexArray());
osg::Vec3Array* normals = NULL;
if (geom.getNormalBinding()==osg::Geometry::BIND_PER_VERTEX)
{
normals = dynamic_cast<osg::Vec3Array*>(geom.getNormalArray());
}
typedef std::vector<osg::Array*> ArrayList;
ArrayList arrays;
if (geom.getColorBinding()==osg::Geometry::BIND_PER_VERTEX)
{
arrays.push_back(geom.getColorArray());
}
if (geom.getSecondaryColorBinding()==osg::Geometry::BIND_PER_VERTEX)
{
arrays.push_back(geom.getSecondaryColorArray());
}
if (geom.getFogCoordBinding()==osg::Geometry::BIND_PER_VERTEX)
{
arrays.push_back(geom.getFogCoordArray());
}
osg::Geometry::ArrayDataList& tcal = geom.getTexCoordArrayList();
for(osg::Geometry::ArrayDataList::iterator tcalItr=tcal.begin();
tcalItr!=tcal.end();
++tcalItr)
{
if (tcalItr->array.valid())
{
arrays.push_back(tcalItr->array.get());
}
}
// now add any new vertices that are required.
for(NewVertexList::iterator itr=_newVertexList.begin();
itr!=_newVertexList.end();
++itr)
{
NewVertex& newVertex = (*itr);
osg::Vec3* vertex = newVertex._vpos;
// assign vertex.
vertexPtrToIndexMap[vertex]=vertices->size();
vertices->push_back(*vertex);
// assign normals
if (normals)
{
osg::Vec3 norm(0.0f,0.0f,0.0f);
if (newVertex._v1) norm += (*normals)[vertexPtrToIndexMap[newVertex._v1]] * newVertex._f1;
if (newVertex._v2) norm += (*normals)[vertexPtrToIndexMap[newVertex._v2]] * newVertex._f2;
if (newVertex._v3) norm += (*normals)[vertexPtrToIndexMap[newVertex._v3]] * newVertex._f3;
if (newVertex._v4) norm += (*normals)[vertexPtrToIndexMap[newVertex._v4]] * newVertex._f4;
norm.normalize();
normals->push_back(norm);
}
if (!arrays.empty())
{
InsertNewVertices inv(newVertex._f1,vertexPtrToIndexMap[newVertex._v1],
newVertex._f2,vertexPtrToIndexMap[newVertex._v2],
newVertex._f3,vertexPtrToIndexMap[newVertex._v3],
newVertex._f4,vertexPtrToIndexMap[newVertex._v4]);
// assign the rest of the attributes.
for(ArrayList::iterator aItr=arrays.begin();
aItr!=arrays.end();
++aItr)
{
(*aItr)->accept(inv);
}
}
}
}
}
void
GeometryValidator::apply(osg::Geometry& geom)
{
unsigned numVerts = geom.getVertexArray()->getNumElements();
if ( geom.getColorArray() )
{
if ( geom.getColorBinding() == osg::Geometry::BIND_OVERALL && geom.getColorArray()->getNumElements() != 1 )
{
OE_WARN << "Color: BIND_OVERALL with wrong number of elements" << std::endl;
}
else if ( geom.getColorBinding() == osg::Geometry::BIND_PER_VERTEX && geom.getColorArray()->getNumElements() != numVerts )
{
OE_WARN << "Color: BIND_PER_VERTEX with color.size != verts.size" << std::endl;
}
}
if ( geom.getNormalArray() )
{
if ( geom.getNormalBinding() == osg::Geometry::BIND_OVERALL && geom.getNormalArray()->getNumElements() != 1 )
{
OE_WARN << "Normal: BIND_OVERALL with wrong number of elements" << std::endl;
}
else if ( geom.getNormalBinding() == osg::Geometry::BIND_PER_VERTEX && geom.getNormalArray()->getNumElements() != numVerts )
{
OE_WARN << "Normal: BIND_PER_VERTEX with color.size != verts.size" << std::endl;
}
}
const osg::Geometry::PrimitiveSetList& plist = geom.getPrimitiveSetList();
for( osg::Geometry::PrimitiveSetList::const_iterator p = plist.begin(); p != plist.end(); ++p )
{
osg::PrimitiveSet* pset = p->get();
osg::DrawElementsUByte* de_byte = dynamic_cast<osg::DrawElementsUByte*>(pset);
if ( de_byte )
{
if ( numVerts > 0xFF )
{
OE_WARN << "DrawElementsUByte used when numVerts > 255 (" << numVerts << ")" << std::endl;
}
validateDE(de_byte, 0xFF, numVerts );
}
osg::DrawElementsUShort* de_short = dynamic_cast<osg::DrawElementsUShort*>(pset);
if ( de_short )
{
if ( numVerts > 0xFFFF )
{
OE_WARN << "DrawElementsUShort used when numVerts > 65535 (" << numVerts << ")" << std::endl;
}
validateDE(de_short, 0xFFFF, numVerts );
}
osg::DrawElementsUInt* de_int = dynamic_cast<osg::DrawElementsUInt*>(pset);
if ( de_int )
{
validateDE(de_int, 0xFFFFFFFF, numVerts );
}
}
}
void IndexMeshVisitor::apply(osg::Geometry& geom) {
// TODO: this is deprecated
if (geom.getNormalBinding() == osg::Geometry::BIND_PER_PRIMITIVE_SET) return;
if (geom.getColorBinding() == osg::Geometry::BIND_PER_PRIMITIVE_SET) return;
if (geom.getSecondaryColorBinding() == osg::Geometry::BIND_PER_PRIMITIVE_SET) return;
if (geom.getFogCoordBinding() == osg::Geometry::BIND_PER_PRIMITIVE_SET) return;
// no point optimizing if we don't have enough vertices.
if (!geom.getVertexArray() || geom.getVertexArray()->getNumElements() < 3) return;
osgUtil::SharedArrayOptimizer deduplicator;
deduplicator.findDuplicatedUVs(geom);
// duplicate shared arrays as it isn't safe to rearrange vertices when arrays are shared.
if (geom.containsSharedArrays()) {
geom.duplicateSharedArrays();
}
osg::Geometry::PrimitiveSetList& primitives = geom.getPrimitiveSetList();
osg::Geometry::PrimitiveSetList::iterator itr;
osg::Geometry::PrimitiveSetList new_primitives;
new_primitives.reserve(primitives.size());
// compute duplicate vertices
typedef std::vector<unsigned int> IndexList;
unsigned int numVertices = geom.getVertexArray()->getNumElements();
IndexList indices(numVertices);
unsigned int i, j;
for(i = 0 ; i < numVertices ; ++ i) {
indices[i] = i;
}
VertexAttribComparitor arrayComparitor(geom);
std::sort(indices.begin(), indices.end(), arrayComparitor);
unsigned int lastUnique = 0;
unsigned int numUnique = 1;
for(i = 1 ; i < numVertices ; ++ i) {
if (arrayComparitor.compare(indices[lastUnique], indices[i]) != 0) {
lastUnique = i;
++ numUnique;
}
}
IndexList remapDuplicatesToOrignals(numVertices);
lastUnique = 0;
for(i = 1 ; i < numVertices ; ++ i) {
if (arrayComparitor.compare(indices[lastUnique],indices[i]) != 0) {
// found a new vertex entry, so previous run of duplicates needs
// to be put together.
unsigned int min_index = indices[lastUnique];
for(j = lastUnique + 1 ; j < i ; ++ j) {
min_index = osg::minimum(min_index, indices[j]);
}
for(j = lastUnique ; j < i ; ++ j) {
remapDuplicatesToOrignals[indices[j]] = min_index;
}
lastUnique = i;
}
}
unsigned int min_index = indices[lastUnique];
for(j = lastUnique + 1 ; j < i ; ++ j) {
min_index = osg::minimum(min_index, indices[j]);
}
for(j = lastUnique ; j < i ; ++ j) {
remapDuplicatesToOrignals[indices[j]] = min_index;
}
// copy the arrays.
IndexList finalMapping(numVertices);
IndexList copyMapping;
copyMapping.reserve(numUnique);
unsigned int currentIndex = 0;
for(i = 0 ; i < numVertices ; ++ i) {
if (remapDuplicatesToOrignals[i] == i) {
finalMapping[i] = currentIndex;
copyMapping.push_back(i);
currentIndex++;
}
else {
finalMapping[i] = finalMapping[remapDuplicatesToOrignals[i]];
}
}
// remap any shared vertex attributes
RemapArray ra(copyMapping);
arrayComparitor.accept(ra);
// triangulate faces
{
TriangleIndexor ti;
ti._maxIndex = numVertices;
ti._remapping = finalMapping;
for(itr = primitives.begin() ; itr != primitives.end() ; ++ itr) {
(*itr)->accept(ti);
}
addDrawElements(ti._indices, osg::PrimitiveSet::TRIANGLES, new_primitives);
}
// line-ify line-type primitives
{
LineIndexor li, wi; // lines and wireframes
li._maxIndex = numVertices;
wi._maxIndex = numVertices;
li._remapping = finalMapping;
wi._remapping = finalMapping;
for(itr = primitives.begin() ; itr != primitives.end() ; ++ itr) {
bool isWireframe = false;
if((*itr)->getUserValue("wireframe", isWireframe) && isWireframe) {
(*itr)->accept(wi);
}
else {
(*itr)->accept(li);
}
}
addDrawElements(li._indices, osg::PrimitiveSet::LINES, new_primitives);
addDrawElements(wi._indices, osg::PrimitiveSet::LINES, new_primitives, "wireframe");
}
// adds points primitives
{
IndexList points;
for(itr = primitives.begin() ; itr != primitives.end() ; ++ itr) {
if((*itr) && (*itr)->getMode() == osg::PrimitiveSet::POINTS) {
for(unsigned int k = 0 ; k < (*itr)->getNumIndices() ; ++ k) {
points.push_back(finalMapping[(*itr)->index(k)]);
}
}
}
addDrawElements(points, osg::PrimitiveSet::POINTS, new_primitives);
}
geom.setPrimitiveSetList(new_primitives);
deduplicator.deduplicateUVs(geom);
setProcessed(&geom);
}
