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Black hole light distortion.
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| Voekoevaka | Date: Sunday, 05.08.2012, 16:43 | Message # 1 |
 World Builder
Group: SE team
France
Messages: 1016
Status: Offline
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Firstly, I will adress my thanks to SpaceEngeener and the developement team for this incredible effect, that allows a better comprehension of this phenomenon.
But I noticed one thing that seemed to me not acurate. I understand that the positions of the stars will be different when viewed from near a black hole, because the trajectory of their light was curved before reaching our virtual" eye. But I think the lens flares cannot be distorded so, because the processus that create them (diffraction on the camera objective) happens after the light passes near the black hole.
What do you think about it ?
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| anonymousgamer | Date: Sunday, 05.08.2012, 18:01 | Message # 2 |
 World Builder
Group: Global Moderators
United States
Messages: 1011
Status: Offline
| It makes for cool effects when done right, but is very inaccurate because flaring happens inside the lens. Also, the flare position should change based on where we view the star.
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| SpaceEngineer | Date: Sunday, 05.08.2012, 18:32 | Message # 3 |
 Author of Space Engine
Group: Administrators
Russian Federation
Messages: 4800
Status: Offline
| Quote (Voekoevaka) But I noticed one thing that seemed to me not acurate. I understand that the positions of the stars will be different when viewed from near a black hole, because the trajectory of their light was curved before reaching our virtual" eye. But I think the lens flares cannot be distorded so, because the processus that create them (diffraction on the camera objective) happens after the light passes near the black hole.
I know. But I can't make a proper effect for now - it is too hard. So this "unproper" effect is better than nothing for now.
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| XMINEIROCREEPEIROGENERALX | Date: Saturday, 01.09.2012, 16:06 | Message # 4 |
 Space Tourist
Group: Banned
Portugal
Messages: 38
Status: Offline
| The black hole sucks light! 
OpenGL 3.0 is the best OpenGL for SE. Trust me. ;)
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| anonymousgamer | Date: Saturday, 01.09.2012, 16:39 | Message # 5 |
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World Builder
Group: Global Moderators
United States
Messages: 1011
Status: Offline
| Quote (XMINEIROCREEPEIROGENERALX) The black hole sucks light!
We were talking about the lens flare and the apparent position of the star. We know that black holes bend light but it should not bend the lens flaring.
EDIT: Is it possible to change the position of the texture that makes the lens flare so it is always in front of objects, like how the ghosts are in this picture?
Desktop: FX-8350 4.0 GHz, 8 GB DDR3 RAM, EVGA GeForce GTX 1080 FTW 8 GB, 2 TB HDD, 24 inch 1920x1080 screen
Laptop: Core i5 480M 2.66 GHz (turbo 2.93), 8 GB DDR3 RAM, AMD Radeon HD 6550m 1 GB, 640 GB HDD, 17.3 inch 1600x900 screen
Edited by anonymousgamer - Saturday, 01.09.2012, 16:41 |
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| SpaceEngineer | Date: Sunday, 02.09.2012, 15:49 | Message # 6 |
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Author of Space Engine
Group: Administrators
Russian Federation
Messages: 4800
Status: Offline
| Quote (anonymousgamer) EDIT: Is it possible to change the position of the texture that makes the lens flare so it is always in front of objects, like how the ghosts are in this picture?
Yes, but if you rotate yourself around black hole so star is behind it, the image of the star gets distorted and shifted away, while the center of the lens flare will not change its position, as if there is no black hole between you and the star. SE doesn't calculate actual light bending, it's just a renderer post-process effect. Actual calculation may be made, but it requires special developement - it will be made in future.
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