[osg-users] Heap corruption

[Julie Green]

Hi,

I'm trying to draw a quadric surface, which is modifying each frame, and I'm getting a heap corruption error. I guess the problem is in calculating function, or in update callback, but can't find it in the debugger. 

Code:

void SurfaceCalculationThread::reCalculateSurface()
{
	mutex.lock();
	float x, y, z;
	int i = 0;
	float t=time->elapsedTime();
	for (x = -polygonLength; x <= polygonLength; x += 1.0f)
	{
		for (y = -polygonLength; y <= polygonLength; y += 1.0f)
		{
			(*oldVertexArray)[i].set((*newVertexArray)[i]);
			z = computeZ(x, y, t);
			(*newVertexArray)[i].set(osg::Vec3f(x, y, z));
			i++;
		}
	}
	geometry->setVertexArray(oldVertexArray);
	geometry->setUpdateCallback(new UpdateSurfaceCallback(conditionVariable));

	osgUtil::SmoothingVisitor *smoothingVisitor = new osgUtil::SmoothingVisitor();
	smoothingVisitor->smooth(*geometry);
	smoothingVisitor->setName("normal");

	conditionVariable->wait(&mutex);
	mutex.unlock();
	
}

void UpdateSurfaceCallback::operator()(osg::Node *node, osg::NodeVisitor *nv)
{
	traverse(node, nv);
	conditionVariable->wakeAll();
};




Thanks for your help!

Cheers,
Julie

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