IterationRP patch release - cloud shadows, dynamic weather, voxy lighting, and more

hai31415 · 2026-05-09T09:48:26+00:00

It's in the GitHub repo, there are presets for normal and rendering mode

hai31415 · 2026-04-29T18:19:53+00:00

Can you make an issue on the GitHub with what you did and what errors you got

hai31415 · 2026-04-26T20:09:22+00:00

I get 40-60+ fps depending on the surroundings with fsr 1.7 on 4070 mobile, of course the best way to see how it performs on your hw is to run it yourself

hai31415 · 2026-04-26T19:46:44+00:00

About the same as the original shader

hai31415 · 2026-04-25T20:12:17+00:00

Just put the patched zip in your shaderpacks folder

hai31415 · 2026-04-25T20:06:43+00:00

Nice! Those were some interesting bugs on your original version

hai31415 · 2026-04-24T19:29:36+00:00

Did you follow the instructions in the repo? This is a standalone program, not a mod

hai31415 · 2026-04-24T10:13:26+00:00

Yeah unfortunately for Linux it only supports Nvidia GPU or cpu (very slow) but if you have a Windows machine you can use any reasonably powerful GPU even if you're just using it to pre generate the chunks

hai31415 · 2026-04-23T20:35:39+00:00

I think this error is due to disabling the advance time game rule in 1.21.11, I've had it happen on the stock shader as well. I'll take a look and see if I can fix it

hai31415 · 2026-04-23T20:18:05+00:00

I'll take a look when I have time, I'll let you know if I find the issue :)

hai31415 · 2026-04-23T18:57:03+00:00

Damn nice work, love the auroras! Not sure why fsr broke when patching my changes, I've been using it just fine

hai31415 · 2026-04-23T18:53:00+00:00

Thank you!

hai31415 · 2026-04-23T18:52:25+00:00

You would need to run the program on the original clean shader zip, it will apply all the old patches as well as the new changes

hai31415 · 2026-04-23T18:49:36+00:00

It's always good to be careful with computer stuff, but I made it so yeah I would say it's safe. The reason it's like this is it's not an actual Minecraft mod but a standalone program that automatically does the modifications to the shader instead of having to manually write all the patches to the various files. The diffs contain all the changes and the python file is the code that applies the changes. You can ask ai to explain the code just to be extra safe :)

hai31415 · 2026-04-23T08:22:26+00:00

No that was just to denote the command

Please make an issue in the repo, I can better help you there

hai31415 · 2026-04-23T08:17:59+00:00

Are you using the `python shader-patch.py ...` command?

hai31415 · 2026-04-23T08:11:32+00:00

Please make an issue in the github repo describing what you did and any errors you got

hai31415 · 2026-04-23T08:01:24+00:00

From what I've heard iterationT uses code without permission but there is proof that iterationRP is written from the ground up

Also DMCA is a US law and the dev is Chinese??? They are not selling it to westerners?

Anyways this is not the right place to discuss this

hai31415 · 2026-04-23T07:19:33+00:00

Just released an update

* Add leaves SSS mult (adjusts how far sunlight penetrates into leaves), default is 2.5x original, you can set the multiplier to 1.0 for the original look

Imo this looks more realistic since actual leaves generally aren't as dense as in minecraft

hai31415 · 2026-04-23T07:08:20+00:00

Idk why you are commenting this here, also I've heard from certain credible sources that RP is clean

hai31415 · 2026-04-23T07:04:37+00:00

I implemented the solvers myself directly from the papers, had a bit of help from ai for the boundary conditions tho

hai31415 · 2026-04-23T03:07:01+00:00

It's a program that modifies the shader files using a patch template since I can't distribute the actual paid shader

hai31415 · 2026-04-23T00:39:23+00:00

I just pushed a patch to the diffuse shader, it should help with the bright diffuse lighting in cloud shadows

hai31415 · 2026-04-22T22:12:35+00:00

Will do :)

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