Method load

physx/source/geomutils/src/hf/GuHeightField.cpp:213–276

}

bool Gu::HeightField::load(PxInputStream& stream)
{
	// release old memory
	releaseMemory();

	// Import header
	PxU32 version;
	bool endian;
	if(!readHeader('H', 'F', 'H', 'F', version, endian, stream))
		return false;

	// load mData
	mData.rows = readDword(endian, stream);
	mData.columns = readDword(endian, stream);
	mData.rowLimit = readFloat(endian, stream);
	mData.colLimit = readFloat(endian, stream);
	mData.nbColumns = readFloat(endian, stream);
	const float thickness = readFloat(endian, stream);
	PX_UNUSED(thickness);
	mData.convexEdgeThreshold = readFloat(endian, stream);

	PxU16 flags = readWord(endian, stream);
	mData.flags = PxHeightFieldFlags(flags);

	PxU32 format = readDword(endian, stream);
	mData.format = PxHeightFieldFormat::Enum(format);

	PxBounds3 minMaxBounds;
	minMaxBounds.minimum.x = readFloat(endian, stream);
	minMaxBounds.minimum.y = readFloat(endian, stream);
	minMaxBounds.minimum.z = readFloat(endian, stream);
	minMaxBounds.maximum.x = readFloat(endian, stream);
	minMaxBounds.maximum.y = readFloat(endian, stream);
	minMaxBounds.maximum.z = readFloat(endian, stream);
	mData.mAABB = CenterExtents(minMaxBounds);

	mSampleStride = readDword(endian, stream);
	mNbSamples = readDword(endian, stream);
	mMinHeight = readFloat(endian, stream);
	mMaxHeight = readFloat(endian, stream);

	// allocate height samples
	mData.samples = NULL;
	const PxU32 nbVerts = mData.rows * mData.columns;
	if (nbVerts > 0) 
	{
		mData.samples = reinterpret_cast<PxHeightFieldSample*>(PX_ALLOC(nbVerts*sizeof(PxHeightFieldSample), "PxHeightFieldSample"));
		if (mData.samples == NULL)
		{
			Ps::getFoundation().error(PxErrorCode::eOUT_OF_MEMORY, __FILE__, __LINE__, "Gu::HeightField::load: PX_ALLOC failed!");
			return false;
		}
		stream.read(mData.samples, mNbSamples*sizeof(PxHeightFieldSample));
		if (endian)
			for(PxU32 i = 0; i < mNbSamples; i++)
			{
				PxHeightFieldSample& s = mData.samples[i];
				PX_ASSERT(sizeof(PxU16) == sizeof(s.height));