If you could provide me with a demo .ved & resource files needed to run it, then that would be most helpful, cheers.
English is fine, don't worry about it. It's actually more annoying to constantly read: "please forgive/sorry for my English" from all non-native English speakers. Compared to how most native English speakers talk/write these days I prefer to read/listen to non-native speakers!
As long as the lighting is essentially just an overlay type of image & doesn't actually change any of the lighting/shadows in the main scene/background then you can do that with a single image file & use the set opacity action part or lua script to control the transparency of it.
Check out this dynamic lighting tutorial I wrote in the wiki @ here
. There's a .ved file linked at the bottom of the page too.
It's also possible to control lighting with lua & the openGL shader. I've shown an example of using shader to generate/control lighting in this hotspot tutorial
- I've applied an openGL shader spotlight around the camera & using a loop the light strength etc is dynamically updated & if you click on the candle then the light will go out & then flicker back on.