Item rendering looks weird (Don't know how to explain this) about immediatelyfast

[RaphiMC]

You have graphical glitches all over the place. Even in places not touched by IF like the chunk rendering. Try updating your GPU driver

[RaphiMC]

Also post a full mod list as well

[Imzxhir]

Well, you see. I'm on MacOS and the latest update I can update to is 10.13.6 which I'm already on. When using the 1.1.6 version of the mod, everything looks fine

[RaphiMC]

Can you try the 1.1.7 version? Also do the graphical glitches happen consistently or randomly?

[Imzxhir]

Also post a full mod list as well

I'm using the mods in Fabulously Optimized and this mod.

[RaphiMC]

Can you send your latest.log file or the mod section at the top of it? I want a concrete mod list with their versions

[Imzxhir]

Sure! Let me try 1.1.7 first and see if I get the issue

[Imzxhir]

Can you try the 1.1.7 version? Also do the graphical glitches happen consistently or randomly?

I can see the items but the items in my hand are really glitchy and they seem to happen consistently.

MCC Island:

Tubnet:

[Imzxhir]

Can you send your latest.log file or the mod section at the top of it? I want a concrete mod list with their versions

Here you go: https://mclo.gs/bwvhZ1w

[RaphiMC]

This is very odd, can you try replicating this issue with only ImmediatelyFast and no other mods installed.
I also spoke to a person on my discord with MacOS knowledge and I found out that you use a hackintosh with ancient hardware. This might be a configuration I can't support with ImmediatelyFast due to how old your GPU is

[akemin-dayo]

Are you using a Hackintosh? (I'm not aware of any Apple hardware that includes an i7-870 CPU, but I could be wrong about that.) Never mind, it appears that you're using an iMac11,3.

Either way, it appears that your GPU is really old (an ATi Radeon HD 5750 from 2009 using the TeraScale 2 architecture), and is most likely the cause of this issue.

Does this issue occur without ImmediatelyFast present? (※ Rename the .jar extension to .jar.disabled or something, or simply just move it out of your mods folder temporarily.)

If so, this may be an issue caused by Sodium.

[Imzxhir]

Nope, I'm using High Sierra 10.13.6. Also, this issue does not occur when ImmediatlyFast is present as seen here.

MCC Island:

Tubnet:

[RaphiMC]

I am not too sure where to go from here. I asume its caused by your ancient GPU. One last thing you can try is setting debug_only_and_not_recommended_disable_universal_batching to true and trying it again

[Imzxhir]

This is very odd, can you try replicating this issue with only ImmediatelyFast and no other mods installed. I also spoke to a person on my discord with MacOS knowledge and I found out that you use a hackintosh with ancient hardware. This might be a configuration I can't support with ImmediatelyFast due to how old your GPU is

Yep, here you go:

[RaphiMC]

I think it might be fast_buffer_upload. Disable that and try again. Also revert the previous change because its a debugging only option

[Imzxhir]

I am not too sure where to go from here. I asume its caused by your ancient GPU. One last thing you can try is setting debug_only_and_not_recommended_disable_universal_batching to true and trying it again

Yeah, this didn't work

[Imzxhir]

I think it might be fast_buffer_upload. Disable that and try again. Also revert the previous change because its a debugging only option

This actually worked.

MCC Island:

Tubnet:

[RaphiMC]

So the issue is resolved now

[Imzxhir]

Wait, what does fast buffer uploads do?

[RaphiMC]

It speeds up data transfer between CPU and GPU. The artifacts are probably caused by your ancient GPU not liking the approach I take to speed that up

[Imzxhir]

Yeah most likely, anyway thanks for helping me out. Appreciate it

[isXander]

Can you disable this feature automatically on old hardware?

[RaphiMC]

If you can tell me how I am supposed to detect old hardware. Checking the OpenGL version won't get me very far

[kees-]

+1 that this repros, and is solved by disabling fast_buffer_upload, with an AMD Radeon R9 M370X / MacOS 12.6.5 / 2015 MBP. Playing on 1.19.4. Thanks for identifying the fix here

[Madis0]

If you can tell me how I am supposed to detect old hardware. Checking the OpenGL version won't get me very far

Isn't this just a macOS issue? Or any Mac without a Apple Mx chip.

[RaphiMC]

Not sure. I think there a macOS players which use the mod without problems

[akemin-dayo]

I can confirm that this is not a macOS-specific issue.

I'm beginning to wonder if this is an issue with AMD GPUs that are GCN 1.0 or older, or something like that. (※ The R9 M370X is one such GPU.)

[RaphiMC]

I recoded the fast buffer upload optimization using a more "modern" OpenGL API, so it might now work properly in this case. @Imzxhir Could you please retest (Make sure to delete the IF config): https://upload.raphimc.net/file/JPMTZ7m7w7vc2axZ/wWUsFXDcn27FxRRw/ImmediatelyFast-1.1.16-SNAPSHOT%2B1.20.1.jar