in unreal 5.8, when using a vertical screen format, the 3D gas Niagara System got clipped off, and also somehow there is a black line appeared where the effect started cut off.
Please help!!!
Hello there @woodwaterforest!
Checking with my peers, I think this is a bit of strange interaction with the camera format in use.
The way Niagara works, the effects have an invisible voxel grid, which defines the area where they appear. That grid is shaped to work with the camera view, so when you switched to vertical, that exposed it’s limits. Your smoke and fire extend beyond the bounding box, and hit said limit.
One way to fix this, would be to temporary change how the grid operates. To do so, use cmdlet r.HeterogeneousVolumes.FrustumGrid 0. If the clipping is gone that was the cultrip. But now you are dealing with a quite taxing effect in play. You can set that cmdlet back to 1, then use r.HeterogeneousVolumes.Tessellation.FarPlaneAutoTransition 0for a more narrow control of the grid.
Now, if none of those commands fix the problem, then we can test on the effect itself. Open your Niagara system, select your emitter, and alter it’s bounds. You can do it from the Simulation section, or using the Overrides, in case you prefer to keep your current settings unchanged.
Remember to enable “Draw Bounds” so you can see the size changes in the editor. You can also increase the value “ResolutionMaxAxis”, to compensate said changes.