NVIDIA GameWorks Integration

[brycelynch]

@Miles.Macklin;589825

Is there any error message at all? The example FlexProject appears to package fine, so we would need some more information to help. Are the Flex binaries being included in the Engine/Binaries/ThirdParty//Flex-1.0.0/Win64 folder?

It turns out the Boolean bFlexFluidSurface is not initialized to false in FPrimitiveSceneProxy constructor which caused random meshes to be marked as Flex Surfaces because of garbage values. Once was true the primitives got randomly pulled into the SurfaceSceneProxies array in the FFlexFluidSurfaceRenderer::UpdateProxiesAndResources function.

The fix was simple, add bFlexFluidSurface = false into the FPrimitiveSceneProxy::FPrimitiveSceneProxy (const UPrimitiveComponent* InComponent, FName InResourceName) constructor function.