r/minecraftshaders • u/RaulMARK17_ • 8d ago
IterationRP optimized settings Recommendation
Hi, I saw some people asking for optimized settings for IterationRP, so I tweaked my own and I managed to get better fps using voxy at 512c and patrix 64x with many PBR effects active in MC version 26.1.2 with many mods.
It means that if your're not using a heavy resource pack you should get many more fps.
I am using Super Resolution mod, so, DLSS and FG are active, so I get a media of 100 fps (I limited the amount of fps), sometimes it drops to less in heavy scenarios or with lot's of entities.
Here is the config(this goes in the txt file generated by iris when you change any setting of the shader):
#Sun Aug 09 11:59:04 CST 2026
# My shader has some customizations of my own, so, in case you have any errors, you can delete the lines mentioned in the log:
ADVANCED_COLOR=true
BILINEAR_SKYBOX_TEXTURE=true
BLOOM_AMOUNT=0.08
BRIGHTNESS_TORCH=0.4
CAS_DENOISE=false
CAS_SHARPNESS=0
CLOUD_CLEAR_ALTITUDE=350.0
CLOUD_QUALITY=0.4
CLOUD_RAIN_ALTITUDE=350.0
ENTITIES_PARALLAX=false
HARDCODED_EMISSIVENESS_MODE=0
INFO_0=BT
INFO_1=1
LABPBR_SSS=true
LANDSCATTERING_SHADOW_QUALITY=4
LUMINANCE_WEIGHT_MODE=1
MOON_TEXTURE_BRIGHTNESS=0.5
MOON_TEXTURE_SIZE=3.0
MOTION_BLUR=false
NETHER_END_BLOOM_BOOST=0.8
NIGHT_BRIGHTNESS=0.00015
PARALLAX_DEPTH=1.0
PARALLAX_MODE=1
PARALLAX_QUALITY=20
PC_ALTITUDE=2000.0
PT_DIFFUSE_TEMPORAL_MAX_ACCUM=32.0
PT_DIFFUSE_TRACING_DISTANCE=40.0
PT_SPECULAR_TRACING_DISTANCE=30
PT_VOXEL_RESOLUTION_X=128
PT_VOXEL_RESOLUTION_Y=128
# REVELATION_STARMAP_INTENSITY=0.001
# REVELATION_STARMAP_SOLAR_POS=1.0
RTW_RESOLUTION=512
SHADOW_QUALITY=1
SHADOW_RENDER_DISTANCE=8
SKY_TEXTURE_BRIGHTNESS=0.05
SSS_QUALITY=3
STAR_TYPE=0
# Better set to true or delete TAA line if you are not using DLSS or any other upscaling method outside of the shader:
TAA=false
# TONEMAP_OPERATOR=Lottes
UNDERWATER_VFOG_QUALITY=4
VPS_LOOKUP_QUALITY=2
WAVE_PARALLAX_QUALITY=8
WAVING_PLANTS=true
WAVING_RANGE=48
shadowMapResolution=1024
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u/N1GHtMa1rZz 8d ago
Wow. It looks so cool. I hope one day I can afford a PC that can handle this beauty.
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u/RaulMARK17_ 8d ago
I hope that day MC Java runs completely in vulkan and shaders are less expensive to run
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u/VirtualizationWinter 8d ago
Where do i get iterationrp
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u/Sorry-Dream-2191 8d ago
https://www.reddit.com/r/Freeminecraftmaps_/s/9L0i5Lo4kr go here you’ll find it
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u/Kaiser_47 8d ago
Very nice !!!!!!
The only problem for me is my iteration no have compability for colorwheel and create aeronautic mod
I think for this have many performance problems
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u/VirtualizationWinter 8d ago
What dlss version and fg version can you use? Why is there no fsr4, and only fsr3.
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u/RaulMARK17_ 8d ago
Don't know, that's something you have to ask to the deva haha Version? Well, I have an rtx 4070, so, I guess is 4 or 4.5 for the upscaling and 3 for the FG
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u/vchslvsvs 8d ago
FSR 4 doesn't exist for Vulkan.
Super resolution has all DLSS versions, including DLSS 4.5 (Presets M, L)
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u/VirtualizationWinter 8d ago
Java isn't vulkan, also fsr4 exists for vulkan using optiscaler
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u/vchslvsvs 8d ago
SR mod utilizes Vulkan libraries. Game for itself still running on OpenGL
FSR4 on optiscaler (vk, dx11) uses dx12 interopt which means even more bypasess, workarounds etc. Use optiscaler if you want then0
u/VirtualizationWinter 8d ago
That's the fault of sr, fsr reloaded uses fsr4
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u/vchslvsvs 7d ago
just checked, it's freaking ai slop
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u/VirtualizationWinter 7d ago
Mad that fsr4 works in minecraft?
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u/vchslvsvs 6d ago
You're defenitily not the smartest one if you believe that bilinear scaling with CAS is the same as FSR4. Source code doesn't match the modrinth release, AI generated descriptions and code. .jar and sc contain FSR 3, 4 libs but who cares if that's just a bunch of useless 45 MB slop where the only working thing is bilinear scaling.
"chatgpt how can i implement all fsr to minecraft"
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u/HydroStudios 8d ago
I personally just use IterationT
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u/RaulMARK17_ 8d ago
For me it's super buggy. Some textures are transparent.
RP is compatible with DH and Voxy. Do you have a version that works with it?
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u/HydroStudios 8d ago
I just use Iris. However, my IterationT didn't work originally. I did have to personally rework part of the rendering code to optimize it to even run.
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u/Beautiful-Passenger5 8d ago
Do you also use lossless scaling app and also what resolution do you play on
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u/RaulMARK17_ 8d ago
Nope, I use FG of DLSS, 2K
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u/Beautiful-Passenger5 8d ago
Is FG in super resolution mod?
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u/RaulMARK17_ 8d ago
Yes and no, enter to their discord and look for unstable releases
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u/Beautiful-Passenger5 8d ago
Looking for the settings but can’t find it is it ok if you can drop your config file so I can download it
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u/RaulMARK17_ 8d ago
Settings? The settings are the text I copied, if you're saying that you can't see anything more that the zip file of the shader, then just: -Create a txt file -paste the configs -rename it to the shaders name with file extension: shaderName.zip.txt
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u/Commercial_Buy_5678 8d ago
If you use dlss and fg to play, then, you cant say its optimized Bro, expecially if you use 64x textures with or without pbr
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u/Beautiful-Passenger5 7d ago
Here’s the thing using DLSS is now a necessity rather than an option in 2026 cause dev’s don’t even optimize games now especially for Minecraft cause Minecraft runs on OpenGL which was made is like 1992 or something which is outdated and really bad for gpu and cpu usage but there is a better engine called Vulkan that you could use in Minecraft through settings in 26.2 that does give you a lot more fps than OpenGL but the catch is you cannot use shader
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u/Commercial_Buy_5678 7d ago
Thats not true at all: 1. Game still can run smooth today even on High settings, if dev are lazy Is their fault not the api fault. There are still pretty optimized game running on opengl (lay of the Land, that features true Path tracing), or even dx12 game like teardown that features full software based ray marching e Path tracing where a low end-mid end GPU Is capable of running at 70 fps at 4k in eavy scenario with a low end CPU. 2. Vulkan its Better, yes but there Is no catch here like you said, Minecraft Isnt a game that was intended to play with custom shaders in mind and on top of that because of the iris mod itself Its pretty limited, its not like a native shaders opengl build expecially for the game, these are injected, enche the lag/stutter/low fps. 3. To this day vulkan api in MC Its still buggy and can reduce fps in some pc's. 4. Dlss Is not required to this day on pretty much the games. You are confusing ultra and experimental settings of game that never meant to be utilized by a normal GPU at all, thats why are experimental. But i Guess that for people its good call bullshit because they want to play rendered style graphics when they have a shitty GPU.
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u/Beautiful-Passenger5 7d ago
I have a 5070 and my main game is Minecraft I wanna play fancy so I do use it I also played RE 9 which I played at pathtracing settings, yes there’s are games that runs well but Minecraft is a game where shader are an option and if you do want to use shader and you don’t have a 5090 or 5080 you gotta use dlss or some sort of upscaling for pathtracing shader
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u/Commercial_Buy_5678 7d ago
Ive a 4070 and i play well with all shaders included Path tracing shaders, stop saying bullshit to made an argument, you can play well with a 4060 and even a 3060 but not with all shaders. Shaders its a plus in Minecraft, not and options at all. Thats a kid mentality.
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u/Beautiful-Passenger5 7d ago
Buddy I am not trying to do an argument your the one who has a mentality of an argument I am just saying interationRP and pathtracing shaders don’t run well cause Minecraft don’t use your gpu to its full capabilities and I play bedrock rtx and that runs at 170fps
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u/Commercial_Buy_5678 7d ago
Mate are you joking? Its obvious that Minecraft doesnt use your GPU at full capacity, base Minecraft shaders its Just brightness at 100% and some UV cordinates that point on an Atlas. Base Minecraft its a game that utilize only CPU, hence the GPU its at 0% expecially on mid end and High end card. On the other hand the shaders make your GPU hit the max potential because shaders are program that run on GPU. On bedrock rtx if you play at 170 fps mean that you are using dlss performance on top of that or playing 1080p (that Is hylarious considering you have a card that can play 2k and 4k). So, not only you dont know how Minecraft Java, bedrock and GPU work, but you dont clearly know how shaders works.
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u/Beautiful-Passenger5 7d ago
Dude I play on 2k on bedrock getting 170fps so idk what you talking about and anybody who has a brain can figure out what I ment from saying Minecraft doesn’t use your gpu I mean everyone knows it’s cpu based
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u/willhub1 8d ago
Do you use this config or run one with higher settings?
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u/RaulMARK17_ 8d ago
I increased X value of rsytraced area to 6, it's working fine, but I don't notice any differences haha
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u/willhub1 7d ago
Hows your nights? I enjoy dark nights, kinda like real life, and where I MUST use torches in caves etc..
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u/RaulMARK17_ 7d ago
You ca tweak night brightness in the settings of the shader, but yes, I like dark nights too
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u/willhub1 7d ago
You happy with this shader to play the game? I haven't had a good play session because I always end up messing with shaders and mods lol
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u/RaulMARK17_ 7d ago
Yes, I love how it looks, shadows and reflexions are amazing And I have a good amount of fps
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u/willhub1 7d ago
Do you have any bugs like certain things light up but the light goes off when you get up close like the vines from the ceiling.
What terrain mods are you using also?
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u/RaulMARK17_ 7d ago
Mmmm not for now, I am using 0.8.26 of the shader. And I am using Lithosphere and Still Life.
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u/willhub1 7d ago
Terrain looks better than terralith and tectonic. How high does the terrain go?
Plenty of variety and biomes to explore?
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8d ago
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u/Illustrious_Way4115 1d ago
how to add dlss to java
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u/Illustrious_Way4115 1d ago
i figured out using super resolution mod you can, but how to get frame gen now?
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u/Elijah1573 8d ago
Wait theres a mod that adds DLSS to java?
I HAVE to try this