Hi! Am looking a way to make transition effect(fade) for camera in 3d space. Something like in the gif. How to achieve this effect?
I think the easiest way would be to create some pre-rendered video and play it looped in background.
If you need real time rendering for some reason I would try:
1. Render main scene from main camera to back buffer
2. Render the same scene (or another one) from different camera to viewport (you can do that more times with more viewports)
3. Setup TextureRects with texture from viewports (one for each viewport)
4. Use AnimationPlayer to adjust rects alpha to achieve blending
Another way would be to use simple color rect with screen space shader and blend all viewports in shader yourself.