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아래 코드는 책에서 가져온 것입니다. 실행하려고하면 라인에서 실패합니다.OpenScenegraph 샘플 코드 문제
osg :: ref_ptr geom = new osg :: Geometry();
및 출력 창에 충돌 이유에 대한 많은 정보가 포함되어있는 것 같지 않습니다. 아래 코드에서 내가 뭘 잘못하고 있는지 알 수 있습니까? 미리 감사드립니다. 나는 윈도우 OSGPracticeLab.exe에 중단 점을 트리거하고있다
비주얼 스튜디오 2010 (윈도우 7 64)에서이를 실행하려고하면 다음
창문 오류 팝업입니다. OSGPracticeLab.exe 또는로드 한 DLL의 버그를 나타내는 힙 손상으로 인한 것일 수 있습니다. OSGPracticeLab.exe에 포커스가있을 때 사용자가 F12 키를 누를 때도 발생할 수 있습니다. 출력 창에 진단 정보가 더 많을 수 있습니다.코드를 디버깅 할 때 새로운 함수 호출로 문제를 추적 할 수있었습니다. 아래의 코드에서는 while 루프는 스킵되는 것, 그리고 널 값이 더 메모리가 할당되지 (P에 대한 반환 등이 아래의 코드 내 기하 객체가 인스턴스화되지 않습니다. 아래
void *__CRTDECL operator new(size_t size) _THROW1(_STD bad_alloc)
{ // try to allocate size bytes
void *p;
while ((p = malloc(size)) == 0)
if (_callnewh(size) == 0)
{ // report no memory
static const std::bad_alloc nomem;
_RAISE(nomem);
}
return (p);
}
#include <osg/ShapeDrawable>
#include <osg/Geode>
#include <osgViewer/Viewer>
int main()
{
//An octahedron is a polyhedron having eight triangle faces.
//It is really a nice example to show why primitive indexing is important
// we will sketch the octahedron structure now
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array(6);
//octahedron has six vertices, each shaed by four triangles.
//withe the help of an index array and the osg::DrawElementsUInt class, we can allocate
//a vertex array with only six elements
(*vertices)[0].set(0.0f, 0.0f, 1.0f);
(*vertices)[1].set(-0.5f,-0.5f, 0.0f);
(*vertices)[2].set(0.5f,-0.5f, 0.0f);
(*vertices)[3].set(0.5f, 0.5f, 0.0f);
(*vertices)[4].set(-0.5f, 0.5f, 0.0f);
(*vertices)[5].set(0.0f, 0.0f,-1.0f);
//The osg::DrawElementsUInt accepts a size parameter besides the drawing mode parameter, too.
//After that, we will specify the indices of vertices to describe all eight triangle faces.
osg::ref_ptr<osg::DrawElementsUInt> indices = new osg::DrawElementsUInt(GL_TRIANGLES, 24);
(*indices)[0] = 0; (*indices)[1] = 1; (*indices)[2] = 2;
(*indices)[3] = 0; (*indices)[4] = 2; (*indices)[5] = 3;
(*indices)[6] = 0; (*indices)[7] = 3; (*indices)[8] = 4;
(*indices)[9] = 0; (*indices)[10]= 4; (*indices)[11]= 1;
(*indices)[12]= 5; (*indices)[13]= 2; (*indices)[14]= 1;
(*indices)[15]= 5; (*indices)[16]= 3; (*indices)[17]= 2;
(*indices)[18]= 5; (*indices)[19]= 4; (*indices)[20]= 3;
(*indices)[21]= 5; (*indices)[22]= 1; (*indices)[23]= 4;
//To create a geometry with a default white color, we only set the vertex array
//and the osg::DrawElementsUInt primitive set. The normal array is also required but is not easy
//to compute manually. We will use a smoothed normal calculator to automatically obtain it. This calculator
//will be described in the next section, Using polygonal techniques.
osg::ref_ptr<osg::Geometry> geom = new osg::Geometry();
geom->setVertexArray(vertices.get());
geom->addPrimitiveSet(indices.get());
//osgUtil::SmoothingVisitor::smooth(*geom);
//Add the geometry to an osg::Geode object and make it the scene root
osg::ref_ptr<osg::Geode> root = new osg::Geode;
root->addDrawable(geom.get());
osgViewer::Viewer viewer;
viewer.setSceneData(root.get());
return viewer.run();
}
int drawShapeUsingVertices()
{
//Create the vertex array and push the four corner points to the back of the array by using vector like operations:
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array;
vertices->push_back(osg::Vec3(0.0f, 0.0f, 0.0f));
vertices->push_back(osg::Vec3(1.0f, 0.0f, 0.0f));
vertices->push_back(osg::Vec3(1.0f, 0.0f, 1.0f));
vertices->push_back(osg::Vec3(0.0f, 0.0f, 1.0f));
//We have to indicate the normal of each vertex; otherwise OpenGL will use a default (0, 0, 1) normal vector
//and the lighting equation calculation may be incorrect. The four vertices actually face the same direction,
//so a single normal vector is enough. We will also set the setNormalBinding() method to BIND_OVERALL later.
osg::ref_ptr<osg::Vec3Array> normals = new osg::Vec3Array;
normals->push_back(osg::Vec3(0.0f,-1.0f, 0.0f));
osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array;
//here We will indicate a unique color value to each vertex and make them colored. By default,
//OpenGL will use smooth coloring and blend colors at each vertex together:
colors->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f));
colors->push_back(osg::Vec4(0.0f, 1.0f, 0.0f, 1.0f));
colors->push_back(osg::Vec4(0.0f, 0.0f, 1.0f, 1.0f));
colors->push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
//Next, we create the osg::Geometry object and set the prepared vertex, normal, and color arrays to it.
//We also indicate that the single normal should be bound to the entire geometry and that the colors
//should be bound per vertex:
osg::ref_ptr<osg::Geometry> quad = new osg::Geometry;
quad->setVertexArray(vertices.get());
quad->setNormalArray(normals.get());
quad->setNormalBinding(osg::Geometry::BIND_OVERALL);
quad->setColorArray(colors.get());
quad->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
//The last step required to finish a geometry and add it to the scene graph is to specify the primitive set.
//A newly allocated osg::DrawArrays instance with the drawing mode set to GL_QUADS is used here, in order to
//render the four vertices as quad corners in a counter-clockwise order:
quad->addPrimitiveSet(new osg::DrawArrays(GL_QUADS, 0, 4));
//Add the geometry to an osg::Geode object and render it in the scene viewer:
osg::ref_ptr<osg::Geode> root = new osg::Geode;
root->addDrawable(quad.get());
osgViewer::Viewer viewer;
viewer.setSceneData(root.get());
return viewer.run();
}
모든 중간 파일을 삭제하고 처음부터 재구성 해 보았습니까? 저기 어리 석음 보이는 여기에 아무것도, 그리고 나는이 예제는 일반적으로 잘 작동 알아. 과거에 이렇게 난처한 것들을 보았을 때, 깨끗한 재건 작업이 진행되었습니다 (아마 길을 따라 무언가가 손상되었을 것입니다). – tmpearce
모든 빌드를 수행하기 전에 모든 중간 파일을 제거하기위한 '솔루션 정리'를 수행하십시오. 나는 수동으로 파일을 직접 제거하여 어딘가에 보관하지 않도록했다.하지만 그건 효과가 없다. – Kobojunkie