Ok So I am creating a new Mod Pack and I have all the mods I would like to have in the Pack. After diligent research i have found a visual glitch and was wondering if you could help with it. When Players have logged in and clear their inventory the tree's start glitching. It is causing havoc with their video cards and they start freezing and cannot move. It is however not logging nor is it crashing server/client. I am running a better computer than they are and I am only experiencing the visual.

Strange, having a hard time picturing what is happening exactly, not sure why inventory clearing is part of it, could you take a screenshot or make a short video of it happening?

Will do

Here ya go bud:

https://www.dropbox.com/s/jp8uhm0bjn8tadk/Weather%2CStorms%20and%20Tornato's.mp4?dl=0

Let me know what you figure out.

Interesting, thanks for the vid, it helps. It makes me suspect there is a specific type of rendering "leak" that is only triggered by my mod and another being used at the same time, but I need to figure out what that other mod is in order to narrow it down and see what the real issue is. Couple questions to help get to that:

1. What mod adds that item you dropped? Or does the issue happen with any item you drop (I realize it might have nothing to do with the item, was just you demonstrating having no inventory to trigger it)

2. What mod makes items drop flat on the ground like that, saw it in some packs but never bothered to find out, would help to know just in case of its special item rendering being a trigger.

3. Is there anywhere I can get a copy of the modpack so I can reproduce the issue for myself? This will help me track the issue down the most.

Ok, it happens with any item, even vanilla. Realistic Item Drops is the mod that drops items flat. I can get you a copy of the mod pack however it is a mod pack I am currently trying to build to publish! The only way I will get you the pack is if you do not divulge the pack to anyone or give it to anyone. I will be getting off to bed so I can get some sleep.

Hmm cant seem to reproduce it using realistic item drops, probably isn't related. You have my word I won't make the modpack public or anything like that, toss me a PM at my curse account and I can start trying to figure things out https://minecraft.curseforge.com/members/Corosus

Finally had some time to dig into this, after reproducing it ingame and seeing it in more detail, I concluded it was related to mipmapping, I disable and reenable that during my particle rendering to fix an issue with mipmapping making my partially transparent textures become almost invisible, and that seemed fine, but one of the mods in this modpack is doing something relating to mipmapping and I have no idea what that is yet.

Anyways, heres a (hopefully temporary) compromise, download and use http://coros.us/mods/modsystem/dl/coroutil-1.10.2-1.1.14.jar - once you run mc with this version, youll have a new config option in config/CoroUtil.cfg called disableMipmapFix, set this to true and you wont have the flicker issue anymore, but all my clouds will be a lot less prominent, will look like the before pic from https://twitter.com/CordonFreeman/status/790377802725851136

I'll push either this fix or a real fix to curse in a couple days, I have 1 question though.

What mod causes the ever so subtle constant movement in the trees? I suspect this mod might be involved in properly fixing this issue, but I'm not sure what mod does that.

I believe it is Realistic terrain, to the best of my knowledge!

Ok, Did as you suggested. It stopped the glitch. I could spawn a Tornado with no issues. as soon as one started to form independently, My server would crash. Unfortunately, I cannot proceed with your mod in my mod pack. Thank you for fixing the Visual glitch. I hope someday I can reintroduce your mod into the Mod Pack.

Thx again,
TyRao
Vermilion Modded Servers

Yeah I ended up settling with that config option, it'll have to do until some realization hits me about a better way to go about it, if that separate crash you mentioned happens more feel free to submit another issue with the crash report so I can look into it, will close this issue since I've done what I can on it for now.

I now realize the true issue to this was me not binding the correct texture before applying my mipmap fix/change, I guess in my initial implementation i got lucky and the correct texture was bound, but with other mods coming into the picture, other textures were bound on and off causing this flicker effect. 90% sure my future shaders based weather/coroutil release will have this fixed and during off my mipmap feature via config will no longer be required.