Manipulating Cesium content in Viewport

[Kevin_Ring]

Hi @naren12, welcome to the community!
An all-white scene sounds like a high dynamic range (HDR) problem. Cesium scenes are often lit by realistic sunlight, which is extremely bright compared to typical Unreal lighting. This thread may have some useful tips:

Problem with emissive materials when using Cesium Sun&sky

Hi, I’m facing problems when using emissive materials in cesium sun sky. When i use fx or emissive materials, its not visible and its transparent. Same issue occurs when using scene capture cube to render a panaroma view and its full white. Problems faced above works fine when i disable cesium sun and sky and create my own directional light. Problem is due to directional light intensity being at 110000 lux in cesium sun sky. How to fix this issue? Thanks in advance…