Cesium always rendered

Cesium for Unreal
1

i have Cesium integrated into my project
i cant set opacity 0 for it
so i try too render my project without cesium first
and attempt to render, despite adding Cesium to the sequencer and disabling the visibility checkbox, Cesium still gets rendered ! i even uncheck the visible check box on details panel in rendering section !
why cesium always rendered ?
Comp 1

2

I guess you should not key the visibility of CesiumGeoreference, but key the visibility of the actors attached beneath it. Since CesiumGeoreference itself has nothing to render.

3

You should be able to hide a Cesium3DTileset in-game by checking the “Actor Hidden in Game” box.

4

thanx kevin and pjiang8 ; Is there a way to control the transparency of the whole project and make a keyframe for the fade in effect

5

There’s no built-in way to do that for a Cesium3DTileset specifically. The immediate problem is that Cesium3DTileset is, by default, rendered with a material that doesn’t support translucency. And if you instead use a custom translucent material, you’ll immediately run into artifacts. Translucent terrain will allow you to see not only other bits of terrain behind, but also the “skirts” between tiles, which aren’t usually visible.

I’m sure there’s some clever what to do such a thing in Unreal, though. Perhaps render the whole scene to an off-screen buffer and then fade it in? I’m afraid I don’t know the details how how this might be done, though. You might get some ideas from a more general Unreal Engine forum.