Function CompactObjects

extensions/flexExtContainer.cpp:157–420

compacts all constraints into linear arrays

// compacts all constraints into linear arrays
void CompactObjects(NvFlexExtContainer* c)
{
	int totalNumSprings = 0;
	int totalNumTris = 0;
	int totalNumShapes = 0;
	int totalNumShapeIndices = 0;

	// pre-calculate array sizes
	for (size_t i = 0; i < c->mInstances.size(); ++i)
	{
		NvFlexExtInstance* inst = c->mInstances[i];

		const NvFlexExtAsset* asset = inst->asset;

		// index into the triangle array for this instance
		inst->triangleIndex = totalNumTris;

		totalNumSprings += asset->numSprings;
		totalNumTris += asset->numTriangles;

		totalNumShapeIndices += asset->numShapeIndices;
		totalNumShapes += asset->numShapes;
	}

	//----------------------
	// map buffers

	// springs
	c->mSpringIndices.map();
	c->mSpringLengths.map();
	c->mSpringCoefficients.map();

	// cloth
	c->mTriangleIndices.map();
	c->mTriangleNormals.map();

	// inflatables
	c->mInflatableStarts.map();
	c->mInflatableCounts.map();
	c->mInflatableRestVolumes.map();
	c->mInflatableCoefficients.map();
	c->mInflatableOverPressures.map();

	// shapes
	c->mShapeIndices.map();
	c->mShapeRestPositions.map();
	c->mShapeOffsets.map();
	c->mShapeCoefficients.map();

	c->mShapeTranslations.map();
	c->mShapeRotations.map();

	//----------------------
	// resize buffers

	// springs
	c->mSpringIndices.resize(totalNumSprings * 2);
	c->mSpringLengths.resize(totalNumSprings);