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0032086: Visualization - support deferred data loading

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1) Extend Poly_Triangulation by mesh purpose, possibility to be cleared and late-load deferred data interfaces.
2) Update BRep_TFace to store list of triangulations istead of single one. And also active one. Update getter and setter of single triangulation and add new methods to interaction with whole triangulations list.
3) Update BRep_Tool to get single triangulation of face according to the input mesh purpose or whole triangulations list.
4) Update BRep_Builder to make face by not only single triangulation but whole triangulations list with specified active one.
5) Add new methods to BRepTools to interact with shape triangulations (Load/Unload/Activate/LoadAll/UnloadAllTriangulation(s))
6) Add new 'tlateload'command for shape to load/unload/activate triangulations.
7) Update 'trinfo' command by '-lods' options to print detailaed information about LODs of this shape
8) Support empty triangulations by selection. Use bounding box selection in this case.
9) Add new 'outdisplist' option to XDispaly command to print list of displayed objects to output variable but not to theDI
10) Add new '-noecho' option to vdisplay command to skip printing of displayed objects to theDI
11) Create new RWMesh_TriangulationSource as mesh data wrapper for delayed triangulation loading.
12) Create new RWMesh_TriangulationReader as base interface for reading primitive array from the buffer.
13) Cache nodes/triangles number defined in glTF file
14) Use RWMesh_TriangulationSource class as base of RWGltf_GltfLatePrimitiveArray one and RWMesh_TriangulationReader class as base of RWGltf_TriangulationReader one
15) Add possibilty to support of LODs by glTF reader. It is possible to skip data loading and load them later
16) Add new '-skiplateloading' (to skip triangulation loading), '-keeplate' (to keep information about deferred storage to load/unload triangulation later),
'-toprintdebuginfo' (to print additional debug information) options to ReadGltf command
17) Add new test of glTF late loading
This commit is contained in:
osa
2021-02-26 18:01:11 +03:00
committed by bugmaster
parent 6387996871
commit e816dce36e
46 changed files with 2475 additions and 800 deletions
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290
src/RWGltf/RWGltf_TriangulationReader.cxx
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@@ -14,16 +14,12 @@
#include <RWGltf_TriangulationReader.hxx>
#include <RWGltf_GltfLatePrimitiveArray.hxx>
#include <RWMesh_CoordinateSystemConverter.hxx>
#include <Standard_ReadBuffer.hxx>
#include <BRep_Builder.hxx>
#include <Graphic3d_Vec.hxx>
#include <Message.hxx>
#include <Message_Messenger.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Iterator.hxx>
#include <OSD_FileSystem.hxx>
#include <RWGltf_GltfLatePrimitiveArray.hxx>
#include <RWGltf_GltfPrimArrayData.hxx>
#include <Standard_ArrayStreamBuffer.hxx>
#include <Standard_ReadBuffer.hxx>
namespace
{
@@ -32,91 +28,128 @@ namespace
static const Standard_ShortReal THE_NORMAL_PREC2 = 0.001f;
}
IMPLEMENT_STANDARD_RTTIEXT(RWGltf_TriangulationReader, RWGltf_PrimitiveArrayReader)
IMPLEMENT_STANDARD_RTTIEXT(RWGltf_TriangulationReader, RWMesh_TriangulationReader)
// =======================================================================
// function : RWGltf_TriangulationReader
// purpose :
// =======================================================================
RWGltf_TriangulationReader::RWGltf_TriangulationReader()
: myIsDoublePrecision (false)
{
//
}
// =======================================================================
// function : reset
// function : reportError
// purpose :
// =======================================================================
void RWGltf_TriangulationReader::reset()
void RWGltf_TriangulationReader::reportError (const TCollection_AsciiString& theText) const
{
myTriangulation = new Poly_Triangulation();
myTriangulation->SetDoublePrecision (myIsDoublePrecision);
}
// =======================================================================
// function : result
// purpose :
// =======================================================================
Handle(Poly_Triangulation) RWGltf_TriangulationReader::result()
{
if (myTriangulation->NbNodes() < 1)
{
return Handle(Poly_Triangulation)();
}
if (myTriangulation->NbTriangles() < 1)
{
// reconstruct indexes
const Standard_Integer aNbTris = myTriangulation->NbNodes() / 3;
if (!setNbTriangles (aNbTris))
{
return Handle(Poly_Triangulation)();
}
for (Standard_Integer aTriIter = 0; aTriIter < aNbTris; ++aTriIter)
{
setTriangle (THE_LOWER_TRI_INDEX + aTriIter,
Poly_Triangle (THE_LOWER_NODE_INDEX + aTriIter * 3 + 0,
THE_LOWER_NODE_INDEX + aTriIter * 3 + 1,
THE_LOWER_NODE_INDEX + aTriIter * 3 + 2));
}
}
return myTriangulation;
Message::SendFail (TCollection_AsciiString("File '") + myFileName + "' defines invalid glTF!\n" + theText);
}
// =======================================================================
// function : load
// purpose :
// =======================================================================
bool RWGltf_TriangulationReader::load (const Handle(RWGltf_GltfLatePrimitiveArray)& theMesh,
const Handle(OSD_FileSystem)& theFileSystem)
bool RWGltf_TriangulationReader::load (const Handle(RWMesh_TriangulationSource)& theSourceMesh,
const Handle(Poly_Triangulation)& theDestMesh,
const Handle(OSD_FileSystem)& theFileSystem) const
{
if (!RWGltf_PrimitiveArrayReader::load (theMesh, theFileSystem))
const Handle(RWGltf_GltfLatePrimitiveArray) aSourceGltfMesh = Handle(RWGltf_GltfLatePrimitiveArray)::DownCast(theSourceMesh);
if (aSourceGltfMesh.IsNull()
|| aSourceGltfMesh->PrimitiveMode() == RWGltf_GltfPrimitiveMode_UNKNOWN)
{
return false;
}
if (!theMesh->CachedMinMax().IsVoid())
for (NCollection_Sequence<RWGltf_GltfPrimArrayData>::Iterator aDataIter (aSourceGltfMesh->Data()); aDataIter.More(); aDataIter.Next())
{
myTriangulation->SetCachedMinMax (theMesh->CachedMinMax());
const RWGltf_GltfPrimArrayData& aData = aDataIter.Value();
if (!aData.StreamData.IsNull())
{
Standard_ArrayStreamBuffer aStreamBuffer ((const char* )aData.StreamData->Data(), aData.StreamData->Size());
std::istream aStream (&aStreamBuffer);
aStream.seekg ((std::streamoff )aData.StreamOffset, std::ios_base::beg);
if (!readBuffer (aSourceGltfMesh, theDestMesh, aStream, aData.Accessor, aData.Type))
{
return false;
}
continue;
}
else if (aData.StreamUri.IsEmpty())
{
reportError (TCollection_AsciiString ("Buffer '") + aSourceGltfMesh->Id() + "' does not define uri.");
return false;
}
const Handle(OSD_FileSystem)& aFileSystem = !theFileSystem.IsNull() ? theFileSystem : OSD_FileSystem::DefaultFileSystem();
opencascade::std::shared_ptr<std::istream> aSharedStream = aFileSystem->OpenIStream (aData.StreamUri, std::ios::in | std::ios::binary, aData.StreamOffset);
if (aSharedStream.get() == NULL)
{
reportError (TCollection_AsciiString ("Buffer '") + aSourceGltfMesh->Id() + "refers to invalid file '" + aData.StreamUri + "'.");
return false;
}
if (!readBuffer (aSourceGltfMesh, theDestMesh, *aSharedStream.get(), aData.Accessor, aData.Type))
{
return false;
}
}
return true;
}
// =======================================================================
// function : finalizeLoading
// purpose :
// =======================================================================
bool RWGltf_TriangulationReader::finalizeLoading (const Handle(RWMesh_TriangulationSource)& theSourceMesh,
const Handle(Poly_Triangulation)& theDestMesh) const
{
if (theDestMesh->NbNodes() < 1)
{
return false;
}
if (theDestMesh->NbTriangles() < 1)
{
const Handle(RWGltf_GltfLatePrimitiveArray) aSourceGltfMesh = Handle(RWGltf_GltfLatePrimitiveArray)::DownCast(theSourceMesh);
if (!aSourceGltfMesh.IsNull() && aSourceGltfMesh->PrimitiveMode() == RWGltf_GltfPrimitiveMode_Triangles)
{
// reconstruct indexes
const Standard_Integer aNbTris = theDestMesh->NbNodes() / 3;
if (!setNbTriangles (theDestMesh, aNbTris))
{
return false;
}
for (Standard_Integer aTriIter = 0; aTriIter < aNbTris; ++aTriIter)
{
if (!setTriangle (theDestMesh, THE_LOWER_TRI_INDEX + aTriIter,
Poly_Triangle (THE_LOWER_NODE_INDEX + aTriIter * 3 + 0,
THE_LOWER_NODE_INDEX + aTriIter * 3 + 1,
THE_LOWER_NODE_INDEX + aTriIter * 3 + 2)))
{
return false;
}
}
}
}
return RWMesh_TriangulationReader::finalizeLoading (theSourceMesh, theDestMesh);
}
// =======================================================================
// function : readBuffer
// purpose :
// =======================================================================
bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
const TCollection_AsciiString& theName,
bool RWGltf_TriangulationReader::readBuffer (const Handle(RWGltf_GltfLatePrimitiveArray)& theSourceMesh,
const Handle(Poly_Triangulation)& theDestMesh,
std::istream& theStream,
const RWGltf_GltfAccessor& theAccessor,
RWGltf_GltfArrayType theType,
RWGltf_GltfPrimitiveMode theMode)
RWGltf_GltfArrayType theType) const
{
if (theMode != RWGltf_GltfPrimitiveMode_Triangles)
const TCollection_AsciiString& aName = theSourceMesh->Id();
if (theSourceMesh->PrimitiveMode() != RWGltf_GltfPrimitiveMode_Triangles)
{
Message::SendWarning (TCollection_AsciiString("Buffer '") + theName + "' skipped unsupported primitive array");
Message::SendWarning (TCollection_AsciiString("Buffer '") + aName + "' skipped unsupported primitive array");
return true;
}
@@ -134,12 +167,12 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
{
if ((theAccessor.Count / 3) > std::numeric_limits<Standard_Integer>::max())
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' defines too big array.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' defines too big array.");
return false;
}
const Standard_Integer aNbTris = (Standard_Integer )(theAccessor.Count / 3);
if (!setNbTriangles (aNbTris))
if (!setNbTriangles (theDestMesh, aNbTris))
{
return false;
}
@@ -147,6 +180,7 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
? theAccessor.ByteStride
: sizeof(uint16_t);
Standard_ReadBuffer aBuffer (theAccessor.Count * aStride, aStride);
Standard_Integer aLastTriIndex = 0;
for (Standard_Integer aTriIter = 0; aTriIter < aNbTris; ++aTriIter)
{
if (const uint16_t* anIndex0 = aBuffer.ReadChunk<uint16_t> (theStream))
@@ -163,13 +197,37 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
}
else
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' reading error.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' reading error.");
return false;
}
if (!setTriangle (THE_LOWER_TRI_INDEX + aTriIter, aVec3))
const Standard_Integer wasSet = setTriangle (theDestMesh, THE_LOWER_TRI_INDEX + aLastTriIndex, aVec3);
if (!wasSet)
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' refers to invalid indices.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' refers to invalid indices.");
}
if (wasSet > 0)
{
aLastTriIndex++;
}
}
const Standard_Integer aNbDegenerate = aNbTris - aLastTriIndex;
if (aNbDegenerate > 0)
{
if (aNbDegenerate == aNbTris)
{
Message::SendWarning (TCollection_AsciiString("Buffer '") + aName + "' has been skipped (all elements are degenerative in)");
return false;
}
theSourceMesh->ChangeDegeneratedTriNb() += aNbDegenerate;
if ((myLoadingStatistic == NULL) && myToPrintDebugMessages)
{
Message::SendTrace (TCollection_AsciiString() + aNbDegenerate
+ " degenerate triangles have been skipped while reading glTF triangulation '" + aName + "'");
}
if (!setNbTriangles (theDestMesh, aLastTriIndex, true))
{
return false;
}
}
}
@@ -177,12 +235,12 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
{
if ((theAccessor.Count / 3) > std::numeric_limits<Standard_Integer>::max())
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' defines too big array.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' defines too big array.");
return false;
}
const int aNbTris = (Standard_Integer )(theAccessor.Count / 3);
if (!setNbTriangles (aNbTris))
if (!setNbTriangles (theDestMesh, aNbTris))
{
return false;
}
@@ -190,6 +248,7 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
? theAccessor.ByteStride
: sizeof(uint32_t);
Standard_ReadBuffer aBuffer (theAccessor.Count * aStride, aStride);
Standard_Integer aLastTriIndex = 0;
for (Standard_Integer aTriIter = 0; aTriIter < aNbTris; ++aTriIter)
{
if (const uint32_t* anIndex0 = aBuffer.ReadChunk<uint32_t> (theStream))
@@ -206,13 +265,37 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
}
else
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' reading error.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' reading error.");
return false;
}
if (!setTriangle (THE_LOWER_TRI_INDEX + aTriIter, aVec3))
const Standard_Integer wasSet = setTriangle (theDestMesh, THE_LOWER_TRI_INDEX + aLastTriIndex, aVec3);
if (!wasSet)
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' refers to invalid indices.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' refers to invalid indices.");
}
if (wasSet > 0)
{
aLastTriIndex++;
}
}
const Standard_Integer aNbDegenerate = aNbTris - aLastTriIndex;
if (aNbDegenerate > 0)
{
if (aNbDegenerate == aNbTris)
{
Message::SendWarning (TCollection_AsciiString("Buffer '") + aName + "' has been skipped (all elements are degenerative in)");
return false;
}
theSourceMesh->ChangeDegeneratedTriNb() += aNbDegenerate;
if (myLoadingStatistic == NULL && myToPrintDebugMessages)
{
Message::SendTrace (TCollection_AsciiString() + aNbDegenerate
+ " degenerate triangles have been skipped while reading glTF triangulation '" + aName + "'");
}
if (!setNbTriangles (theDestMesh, aLastTriIndex, true))
{
return false;
}
}
}
@@ -220,12 +303,12 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
{
if ((theAccessor.Count / 3) > std::numeric_limits<Standard_Integer>::max())
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' defines too big array.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' defines too big array.");
return false;
}
const Standard_Integer aNbTris = (Standard_Integer )(theAccessor.Count / 3);
if (!setNbTriangles (aNbTris))
if (!setNbTriangles (theDestMesh, aNbTris))
{
return false;
}
@@ -233,6 +316,7 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
? theAccessor.ByteStride
: sizeof(uint8_t);
Standard_ReadBuffer aBuffer (theAccessor.Count * aStride, aStride);
Standard_Integer aLastTriIndex = 0;
for (Standard_Integer aTriIter = 0; aTriIter < aNbTris; ++aTriIter)
{
if (const uint8_t* anIndex0 = aBuffer.ReadChunk<uint8_t> (theStream))
@@ -249,13 +333,37 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
}
else
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' reading error.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' reading error.");
return false;
}
if (!setTriangle (THE_LOWER_TRI_INDEX + aTriIter, aVec3))
const Standard_Integer wasSet = setTriangle (theDestMesh, THE_LOWER_TRI_INDEX + aLastTriIndex, aVec3);
if (!wasSet)
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' refers to invalid indices.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' refers to invalid indices.");
}
if (wasSet > 0)
{
aLastTriIndex++;
}
}
const Standard_Integer aNbDegenerate = aNbTris - aLastTriIndex;
if (aNbDegenerate > 0)
{
if (aNbDegenerate == aNbTris)
{
Message::SendWarning (TCollection_AsciiString("Buffer '") + aName + "' has been skipped (all elements are degenerative in)");
return false;
}
theSourceMesh->ChangeDegeneratedTriNb() += aNbDegenerate;
if (myLoadingStatistic == NULL && myToPrintDebugMessages)
{
Message::SendTrace (TCollection_AsciiString() + aNbDegenerate
+ " degenerate triangles have been skipped while reading glTF triangulation '" + aName + "'");
}
if (!setNbTriangles (theDestMesh, aLastTriIndex, true))
{
return false;
}
}
}
@@ -275,7 +383,7 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
}
else if (theAccessor.Count > std::numeric_limits<Standard_Integer>::max())
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' defines too big array.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' defines too big array.");
return false;
}
@@ -283,7 +391,7 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
? theAccessor.ByteStride
: sizeof(Graphic3d_Vec3);
const Standard_Integer aNbNodes = (Standard_Integer )theAccessor.Count;
if (!setNbPositionNodes (aNbNodes))
if (!setNbPositionNodes (theDestMesh, aNbNodes))
{
return false;
}
@@ -296,13 +404,13 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
const Graphic3d_Vec3* aVec3 = aBuffer.ReadChunk<Graphic3d_Vec3> (theStream);
if (aVec3 == NULL)
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' reading error.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' reading error.");
return false;
}
gp_Pnt anXYZ (aVec3->x(), aVec3->y(), aVec3->z());
myCoordSysConverter.TransformPosition (anXYZ.ChangeCoord());
setNodePosition (THE_LOWER_NODE_INDEX + aVertIter, anXYZ);
setNodePosition (theDestMesh, THE_LOWER_NODE_INDEX + aVertIter, anXYZ);
}
}
else
@@ -312,10 +420,10 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
const Graphic3d_Vec3* aVec3 = aBuffer.ReadChunk<Graphic3d_Vec3> (theStream);
if (aVec3 == NULL)
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' reading error.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' reading error.");
return false;
}
setNodePosition (THE_LOWER_NODE_INDEX + aVertIter, gp_Pnt (aVec3->x(), aVec3->y(), aVec3->z()));
setNodePosition (theDestMesh, THE_LOWER_NODE_INDEX + aVertIter, gp_Pnt (aVec3->x(), aVec3->y(), aVec3->z()));
}
}
break;
@@ -329,7 +437,7 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
}
else if (theAccessor.Count > std::numeric_limits<Standard_Integer>::max())
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' defines too big array.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' defines too big array.");
return false;
}
@@ -337,7 +445,7 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
? theAccessor.ByteStride
: sizeof(Graphic3d_Vec3);
const Standard_Integer aNbNodes = (Standard_Integer )theAccessor.Count;
if (!setNbNormalNodes (aNbNodes))
if (!setNbNormalNodes (theDestMesh, aNbNodes))
{
return false;
}
@@ -349,17 +457,17 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
Graphic3d_Vec3* aVec3 = aBuffer.ReadChunk<Graphic3d_Vec3> (theStream);
if (aVec3 == NULL)
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' reading error.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' reading error.");
return false;
}
if (aVec3->SquareModulus() >= THE_NORMAL_PREC2)
{
myCoordSysConverter.TransformNormal (*aVec3);
setNodeNormal (THE_LOWER_NODE_INDEX + aVertIter, gp_Dir (aVec3->x(), aVec3->y(), aVec3->z()));
setNodeNormal (theDestMesh, THE_LOWER_NODE_INDEX + aVertIter, *aVec3);
}
else
{
setNodeNormal (THE_LOWER_NODE_INDEX + aVertIter, gp_Dir (0.0, 0.0, 1.0));
setNodeNormal (theDestMesh, THE_LOWER_NODE_INDEX + aVertIter, gp_Vec3f(0.0, 0.0, 1.0));
}
}
}
@@ -370,16 +478,16 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
const Graphic3d_Vec3* aVec3 = aBuffer.ReadChunk<Graphic3d_Vec3> (theStream);
if (aVec3 == NULL)
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' reading error.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' reading error.");
return false;
}
if (aVec3->SquareModulus() >= THE_NORMAL_PREC2)
{
setNodeNormal (THE_LOWER_NODE_INDEX + aVertIter, gp_Dir (aVec3->x(), aVec3->y(), aVec3->z()));
setNodeNormal (theDestMesh, THE_LOWER_NODE_INDEX + aVertIter, *aVec3);
}
else
{
setNodeNormal (THE_LOWER_NODE_INDEX + aVertIter, gp_Dir (0.0, 0.0, 1.0));
setNodeNormal (theDestMesh, THE_LOWER_NODE_INDEX + aVertIter, gp_Vec3f(0.0, 0.0, 1.0));
}
}
}
@@ -394,7 +502,7 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
}
else if (theAccessor.Count > std::numeric_limits<Standard_Integer>::max())
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' defines too big array.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' defines too big array.");
return false;
}
@@ -402,7 +510,7 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
? theAccessor.ByteStride
: sizeof(Graphic3d_Vec2);
const Standard_Integer aNbNodes = (Standard_Integer )theAccessor.Count;
if (!setNbUVNodes (aNbNodes))
if (!setNbUVNodes (theDestMesh, aNbNodes))
{
return false;
}
@@ -413,13 +521,13 @@ bool RWGltf_TriangulationReader::readBuffer (std::istream& theStream,
Graphic3d_Vec2* aVec2 = aBuffer.ReadChunk<Graphic3d_Vec2> (theStream);
if (aVec2 == NULL)
{
reportError (TCollection_AsciiString ("Buffer '") + theName + "' reading error.");
reportError (TCollection_AsciiString ("Buffer '") + aName + "' reading error.");
return false;
}
// Y should be flipped (relative to image layout used by OCCT)
aVec2->y() = 1.0f - aVec2->y();
setNodeUV (THE_LOWER_NODE_INDEX + aVertIter, gp_Pnt2d (aVec2->x(), aVec2->y()));
setNodeUV (theDestMesh, THE_LOWER_NODE_INDEX + aVertIter, gp_Pnt2d (aVec2->x(), aVec2->y()));
}
break;
}