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Old 08-18-2018, 09:41 AM   #1966
GLS
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 I'm still working a few minor issues with the MLP but things look good now.
Don't forget to delete the thousands of hidden faces inside pretty much every pipe.... and I noticed the other day that there are no rainbirds...

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 The orbiter is receiving changes so it will be a bit longer on that.
Try to commit a working version (but not necessarily perfect/final) after some changes, instead of making one commit with a ton of changes. This way it is easier to debug any issues.
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Old 08-18-2018, 03:42 PM   #1967
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 Don't forget to delete the thousands of hidden faces inside pretty much every pipe.... and I noticed the other day that there are no rainbirds...

Hidden faces might be cause by 2 sided triangles. Changing all parts to one sided usually solves that problem, but sometimes you may have to reverse the normals direction.
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Old 08-18-2018, 03:53 PM   #1968
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 Hidden faces might be cause by 2 sided triangles. Changing all parts to one sided usually solves that problem, but sometimes you may have to reverse the normals direction.
It's not that. Try "flying" inside a pipe and you'll see "disks" in the bends of the pipes... adding all of that vs the total pipe "cost", and the waste is huge.
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Old 08-18-2018, 04:25 PM   #1969
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 It's not that. Try "flying" inside a pipe and you'll see "disks" in the bends of the pipes... adding all of that vs the total pipe "cost", and the waste is huge.

Ah, they were extruded incorrectly.
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Old 08-18-2018, 11:54 PM   #1970
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 Ah, they were extruded incorrectly.
No extrusions whatsoever. All of the MLP was done in GMAX, not AC3D, as GMAX has better control of bends than AC3D through its "Bend" modifier. I have since managed to reduce the overall MLP triangle count by ~40% and it still looks good.
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Old 08-19-2018, 01:00 AM   #1971
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I feel I have to point out that my "crusaide" isn't against detail (if it is correct and not super-duper expensive), but instead against faces/vertices that are not visible, so if removed the visual does not change. That is 100% free performance.

Meanwhile in the "guidance land" I'm now working the TAEM guidance... but the FCS is a royal PITA...
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Old 08-19-2018, 07:44 AM   #1972
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 Meanwhile in the "guidance land" I'm now working the TAEM guidance... but the FCS is a royal PITA...

The bad news: There can't be a FCS that isn't a royal PITA.
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Old 08-22-2018, 07:25 PM   #1973
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So I noticed that the vertical velocity as returned by GetGroundspeedVector(FRAME_HORIZON) is subject to the terrain the vehicle is flying over, so when flying over rugged terrain it jumps quite a bit. (Let's call this "relative velocity", VR.)
If I get the vertical component (stright to the center of the Earth) of the velocity of the vehicle in relation to the center of the Earth (and this would be "inertial velocity", VI), could I use it to "replace" the vertical component returned by GetGroundspeedVector?

I think the rotation of the Earth doesn't "contaminate" the vertical component of VI, so that should be "pure", and in VR, the horizontal components should not be affected by the terrain below, so it seems a fair match...
... or is there a more direct/better/correct way to get a "clean" vertical velocity?
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Old 08-26-2018, 12:45 AM   #1974
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If I can join to discussion:

In my understanding vertical velocity is the same as radial velocity relative to center of the Earth.
We know that r = sqrt(x^2 + y^2 + z^2) so we can differentiate it due to time and gain:

dr/dt = (dx/dt * x + dy/dt * y + dz/dt * z) / sqrt(x^2 + y^2 + z^2) = (dx/dt * x + dy/dt * y + dz/dt * z) / r

x,y,z and dx/dt,dy/dt,dz/dt are of course components of position and velocity vectors relative to the Earth. This should be possible to get using the VESSEL::GetRelativePos() and VESSEL::GetRelativeVel() methods.

I'm not sure if this inference is correct but maybe will be helpful.
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Old 08-26-2018, 07:15 PM   #1975
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So, yesterday I managed to get the vehicle to fly a TAEM all the way to the runway... ...the prefinal turn was SCARY (for some reason they placed the roll limit at 100, so it is not shy of banking if it needs ), but it got to the A/L interface perfectly and from then on it was all tested.
And so now comes the usual issue of the missing data: I'm missing some I-LOADs to calculate the altitude reference... some can be calculated from others, but I can't do magic. What I can do is make an "+/- educated guess" from what I know and from what is available... <- IMO, the most likely scenario
DaveS, do you have the ENT GUID 2102? That might have some juice to squeeze.
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Old 08-26-2018, 07:35 PM   #1976
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GLS: Here you go:

https://sourceforge.net/projects/shu...2.pdf/download
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Old 08-26-2018, 10:00 PM   #1977
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Hmm... that one I have. Either that's not it, or that's it and it changed name.
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Old 08-30-2018, 07:27 PM   #1978
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For the last couple days I have been trying to figure out why the GOX vents through MPS intermediate seal turbopump drain lines doesn't want to line up. I've checked everything. Everything seems to check out. Is there some logic I'm missing in the set up? The actual coordinates is with the nozzles in the installed NULL positions which I got directly from AC3D.

https://www.dropbox.com/s/24l5l3wrzh...vents.jpg?dl=0
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Old 08-30-2018, 07:30 PM   #1979
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Are the positions calculated correctly in SSU?
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Old 08-30-2018, 07:38 PM   #1980
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 Are the positions calculated correctly in SSU?
That I have no idea about.
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