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Shader programming
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| JackDole | Date: Wednesday, 25.11.2015, 17:51 | Message # 16 |
 Star Engineer
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Germany
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| Quote Klud (  ) We can get it:
Very good, I knew that I have no clue. 
However, it is not working properly in 3D mode. But the original shader does also not work properly here.
Original shader:
Don't forget to look here.
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| Klud | Date: Wednesday, 25.11.2015, 19:20 | Message # 17 |
 Astronaut
Group: Users
Russian Federation
Messages: 72
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| Little added.
Although in stereo is not working properly as and other.
Code float exhaustDensity(vec3 pos)
{
// Cylindric coordinates of the point
float r2 = 1.0 / dot(pos.xy, pos.xy);
float l = 0.5 - 0.5 * pos.z;
// Exhaust intensity
float core = 0.6 * smoothstep(0.5, 3.0, r2 * l) * pow(mix(2.0, 0.0, sqrt(sqrt(l + 0.0001))), 3.0);
return core;
}
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| JackDole | Date: Wednesday, 25.11.2015, 20:03 | Message # 18 |
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Star Engineer
Group: Local Moderators
Germany
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| Something's not right yet, there are black squares at the end of the jets.
Don't forget to look here.
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| HarbingerDawn | Date: Wednesday, 25.11.2015, 22:00 | Message # 19 |
 Cosmic Curator
Group: Administrators
United States
Messages: 8717
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| Excellent work Klud!
All forum users, please read this!
My SE mods and addons
Phenom II X6 1090T 3.2 GHz, 16 GB DDR3 RAM, GTX 970 3584 MB VRAM
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| Klud | Date: Friday, 27.11.2015, 22:49 | Message # 20 |
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Astronaut
Group: Users
Russian Federation
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| Quote JackDole ( ) black squares at the end of the jets.
Try this:
Code float core = 0.6 * smoothstep(0.5, 3.0, r2 * l) * pow(mix(2.0, 0.0, sqrt(sqrt(l + 0.001) - 0.001)), 3.0); |
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| JackDole | Date: Friday, 27.11.2015, 23:58 | Message # 21 |
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Star Engineer
Group: Local Moderators
Germany
Messages: 1742
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| Quote Klud ( ) Try this:
Good. I had even found a solution, as I have examined the value of 'intensity' in the calling function to 0. But I think your method is better because it does not require additional changes elsewhere in the script.
Don't forget to look here.
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| HarbingerDawn | Date: Saturday, 28.11.2015, 15:06 | Message # 22 |
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Cosmic Curator
Group: Administrators
United States
Messages: 8717
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| Thanks so much for finding a solution, Klud 
All forum users, please read this!
My SE mods and addons
Phenom II X6 1090T 3.2 GHz, 16 GB DDR3 RAM, GTX 970 3584 MB VRAM
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| Klud | Date: Saturday, 28.11.2015, 16:08 | Message # 23 |
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Astronaut
Group: Users
Russian Federation
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| Quote JackDole ( ) I had even found a solution, as I have examined the value of 'intensity' in the calling function to 0.
Very good, you can try different ways to
improvement.
HarbingerDawn, looks naturally !
And little update:
Code float core = 0.6 * smoothstep(0.5, 3.0, r2 * (l + 0.05)) * pow(mix(2.0, 0.0, sqrt(sqrt(l + 0.001) - 0.001)), 3.0);
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| Destructor1701 | Date: Saturday, 28.11.2015, 22:19 | Message # 24 |
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Pioneer
Group: Users
Ireland
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| Holy crap, Klud, JD, Harb!
GREAT, frickin' MIRACULOUS work!
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| JackDole | Date: Saturday, 28.11.2015, 22:55 | Message # 25 |
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Star Engineer
Group: Local Moderators
Germany
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| Quote Destructor1701 ( ) JD,
That's all alone Klud's merit. I have also tried, but unfortunately without success.
Don't forget to look here.
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| Klud | Date: Sunday, 29.11.2015, 22:47 | Message # 26 |
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Astronaut
Group: Users
Russian Federation
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| I feel the support of the community, so we can say - all involved.
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| HarbingerDawn | Date: Tuesday, 01.12.2015, 16:16 | Message # 27 |
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Cosmic Curator
Group: Administrators
United States
Messages: 8717
Status: Offline
| Yes, everyone deserves credit for their efforts, even if they did not succeed.
All forum users, please read this!
My SE mods and addons
Phenom II X6 1090T 3.2 GHz, 16 GB DDR3 RAM, GTX 970 3584 MB VRAM
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| n0b0dy | Date: Wednesday, 13.01.2016, 16:43 | Message # 28 |
 Explorer
Group: Users
Pirate
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| Quote DoctorOfSpace ( ) With a modified accretion disk shader it might be possible to add "real" jets
Maybe it's time for some shader programming magic by Klud, JackDole, and the good DoctorOfSpace 
Edited by n0b0dy - Wednesday, 13.01.2016, 16:44 |
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| JackDole | Date: Wednesday, 13.01.2016, 17:44 | Message # 29 |
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Star Engineer
Group: Local Moderators
Germany
Messages: 1742
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| It may eventually be possible to change the 'AccretionDisk' function so that it produces instead a disk something like a jet. (I'm not saying that I can do it).
But then we would have the same problem as in SE 0.974.7 with the black hole and the wormhole, either one or the other.
The same solution we have found there to make the choice of function depends on the size, would not be possible here. We then need something like:
Code
#ifdef ACCR_DISK
// if ray hit the accreation disk, accumulate its emission and absorption
AccretionDisk(rayPos, rayDir, rayDist, color, transm);
#endif
only for a jet, ie:
Code #ifdef ACCR_JET
JET(parameter1, parameter2, ...);
#endif
This parameter 'ACCR_JET' but must be encoded in the SpaceEngine.exe.
Don't forget to look here.
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| SpaceEngineer | Date: Wednesday, 13.01.2016, 19:45 | Message # 30 |
 Author of Space Engine
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Russian Federation
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| Quote JackDole ( ) It may eventually be possible to change the 'AccretionDisk' function so that it produces instead a disk something like a jet. (I'm not saying that I can do it).
But then we would have the same problem as in SE 0.974.7 with the black hole and the wormhole, either one or the other.
The same solution we have found there to make the choice of function depends on the size, would not be possible here. We then need something like:
Why? If black hole have a disk, then it must have a jet. One is impossible with another. Jet function could be added in the code in thr same way as the disk, and must blend with it correctly.
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