Author Topic: [Bug] Multiple rendering bugs in nebula  (Read 5183 times)

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Offline Hellzed

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[Bug] Multiple rendering bugs in nebula
Here is a video of multiple bugs encountered in SM2-08 :

- The Sathanas is invisible at some distances and angles
- The Sathanas' engine glows are invisible at short distances
- Sometimes (2:22 to 2:24), the Stahanas (and other ships) render through the nebula poofs without any occlusion.

CPU : Intel i7-3630QM
GPU : nvidia GT 740M 2Go and Intel HD4000

My OS are Ubuntu 13.10 and 14.04. nvidia proprietary driver is up-to-date (331.38), Intel driver (and mesa) is the latest git version.
Issues are the same, a bit worse with the Intel GPU.

Log : http://www.hard-light.net/mantis/file_download.php?file_id=246&type=bug
« Last Edit: February 26, 2014, 06:54:21 pm by Hellzed »

 

Offline Rga_Noris

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Re: [Bug] Multiple rendering bugs in nebula
This big is present with the retail Sath as well.

3.7.0 confirmed all of the above with the retail Sath. Also with nightly 10280.

3.6.12 confirmed no thruster glows. The other bugs may also occur, but they are rare on my system so I may just have missed it.

Windows 7 Ultimate x64
Nvidia GeForce 475
Core i5 at 2.8Ghz
Mission: Monster in the Mist
« Last Edit: February 26, 2014, 02:20:08 pm by Rga_Noris »
I think I'll call REAL Mahjong 'Chinese Dominoes', just to make people think I'm an ignorant asshat.

 

Offline Luis Dias

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Re: [Bug] Multiple rendering bugs in nebula
Y U no log? :(

also you got your youtube thingy wrong. You just need to copypaste the code after the url like this:


 

Offline General Battuta

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Re: [Bug] Multiple rendering bugs in nebula
Hmm. This looks kind of like a bug we saw a lot in BP2 in Universal Truth 2. But we had a very hard time building a test case to repro.

e: If this is specific to MVPs 2014 then it's not the same bug.
« Last Edit: February 26, 2014, 07:05:31 pm by General Battuta »

 

Offline The Dagger

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Re: [Bug] Multiple rendering bugs in nebula
Could this be the same pop-in problem devi1sdoz3n refeared to when he released his nebula poofs?
link: http://www.hard-light.net/forums/index.php?topic=78949.0
There's some discussion in that thread about the causes and possible solutions but there doesn't seem to be a final resolution.

 

Offline Rga_Noris

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Re: [Bug] Multiple rendering bugs in nebula
Hmm. This looks kind of like a bug we saw a lot in BP2 in Universal Truth 2. But we had a very hard time building a test case to repro.

e: If this is specific to MVPs 2014 then it's not the same bug.

Read up... the bug is reproduced using no mods at all.

BAZINGA!

Did I use that right? I think I used it right. Right? Right.
I think I'll call REAL Mahjong 'Chinese Dominoes', just to make people think I'm an ignorant asshat.

 
Re: [Bug] Multiple rendering bugs in nebula
!!!An important clarification!!!

Quote
Sometimes (2:22 to 2:24), the Stahanas (and other ships) render through the nebula poofs without any occlusion

This one is indeed a more general bug. It happens with EVERY ship that are cruisers or bigger. I have tried various different post 3.7.0 builds. The way this happens is VERY irregular. Usually it needs some action first; some projectiles flying in the space. For example during the mission "Proving Grounds" I can't reproduce this bug with Aquitaine in the beginning, but as soon as the attack starts, this bug also starts to happen. It doesn't happen every time I face Aquitaine, but still too often. The basic sympton is that Aquitaine is 100 % visible for 1-2 seconds before FSO engine "remembers" to hide it behind nebula poofs. It's not game-breaking, but it takes away some immersion.

This also happens for Deimos corvettes and Shivan cruisers in the mission "Great Hunt".

I'm fairly certain that this is not an user-end issue. I have confirmed this behaviours with 2 different computers with modern hardware (like Geforce GTX 770) ja up-to-date drivers. I think my installation, settings and start parameters are also fine, since I have been able to complete dozens of campaigns last autumn. So this seems to be only a small rendering annoyance. My guess would be that FSO engine's "occlusion" mechanics are not currently handling well LOD changes of bigger ships, producing a delay of 1-2 seconds.

 

Offline Luis Dias

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Re: [Bug] Multiple rendering bugs in nebula
I remember having this bug the first times I played with the nunebula long before it was in the mediavps.

But I haven't had this for ages now.

 

Offline Zacam

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Re: [Bug] Multiple rendering bugs in nebula
In reading through the linked thread, I realized the shortfalls in the system and I'll actively add this to my immediate "work on" list.
Report MediaVP issues, now on the MediaVP Mantis! Read all about it Here!
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[08/01 16:53:11] <sigtau> EveningTea: I have decided that I am a 32-bit registerkin.  Pronouns are eax, ebx, ecx, edx.
[08/01 16:53:31] <EveningTea> dhauidahh
[08/01 16:53:32] <EveningTea> sak
[08/01 16:53:40] * EveningTea froths at the mouth
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Offline The E

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Re: [Bug] Multiple rendering bugs in nebula
Closing this thread in order to move the discussion to Mantis. See http://scp.indiegames.us/mantis/view.php?id=3012 for further developments.
If I'm just aching this can't go on
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Offline karajorma

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Re: [Bug] Multiple rendering bugs in nebula
I believe this bug is already in Mantis.

http://hard-light.net/mantis/view.php?id=923
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Offline The E

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Re: [Bug] Multiple rendering bugs in nebula
That's the TBP Mantis though. I believe we have conclusive evidence that this is an engine (more specifically, shader) bug, so the SCP Mantis is where it properly belongs.
If I'm just aching this can't go on
I came from chasing dreams to feel alone
There must be changes, miss to feel strong
I really need lifе to touch me
--Evergrey, Where August Mourns

 

Offline karajorma

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Re: [Bug] Multiple rendering bugs in nebula
From what I remember, there is a closed bug somewhere on SCP mantis detailing the same issue.
Karajorma's Freespace FAQ. It's almost like asking me yourself.

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Offline Zacam

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Re: [Bug] Multiple rendering bugs in nebula
I'll update the mantis issue as well, but just so people can have some visibility here as well:

The issue is two factored. It actually was found to be the result of a change in the MediaVP's, but the problem doesn't rely solely or squarely on just them, there are also some code issues to be looked at.
Report MediaVP issues, now on the MediaVP Mantis! Read all about it Here!
Talk with the community on Discord
"If you can keep a level head in all this confusion, you just don't understand the situation"

¤[D+¬>

[08/01 16:53:11] <sigtau> EveningTea: I have decided that I am a 32-bit registerkin.  Pronouns are eax, ebx, ecx, edx.
[08/01 16:53:31] <EveningTea> dhauidahh
[08/01 16:53:32] <EveningTea> sak
[08/01 16:53:40] * EveningTea froths at the mouth
[08/01 16:53:40] <sigtau> i broke him, boys