Xfennec wrote:
... the UFO model is ... very detailed and heavy
Yeah, perhaps there are to many different patterns visible, the surface could be a bit more flat. But how does a real UFO look like, do you have seen and made a photo of one anywhere?
This was my reference picture:
Feel free to modify the
UFO.blend model, so it'll look more likely your UFO vision agenda.
Xfennec wrote:
... when a LF became visible, it appears smoothly, would it be hard to do the same when it disappears ?
This is also my next wish for the lens flare effects. As Vicente written already before ...
Xfennec wrote:
The way the flare appears, in a quick but smooth way looks very great, specially on small lens. Isn't it possible to do the same when it disappear ? And allow to change the speed of this in the config file ?
Vicente wrote:
I did only the "appearance" cause I know is a real optical effect. But I have no read about the inverse effect. Anyaway it's a gamma adjustment, quite easy to achieve with real HDR, that occurs in fact when you stop viewing a point of light. But as we don't have real HDR and we don't touch gamma I don't see how this can be reproduced...
Anyway, yes, an "inverse" effect can be done. The question is: when you stop viewing a source of light, the 2D projected source(point) of lensflare has to be keept? I mean, there is no logical reason to calculate the new position of the lensflare if you are not really seeing it. So it would be like a residual effect in the retina of the eye.
Xfennec wrote:
About "flare disappearing" effect position, your question is damn good ! My idea was based on afterimage illusion, so you're right, it should probably stay at the last position on the screen. Strange when when you think about it
Vicente wrote:
About "flare disappearing" then it's decided: The effect has to stay in the last 2D calculated position.
... this should be possible. My thought was to blurry out the spot of the light source. I mean this effect: When you look into a glare for some time, after that you close your eyes, you will see the spot of the light source for some time afterwards fading out slowly. I don't know yet if this will be looking realistic, so I'll make some tests, trying out some disappearing effects.