Help Center

Many thanks to SubtleSloth for putting together this very helpful guide with a help from EZK1LL(Zeek), Dapie, GAMERxCOWBOY, DraveynWorks, and Modoux.



Hey guys, SubtleSloth here. Some of you may know me from the Realism Mats or other discord channels, and others of you may have no idea who I am. That part doesn’t really matter. What does matter is that Iamonedesign, the creator of Realism Mats doesn’t have all the time in the world to troubleshoot each person’s issues with their installation of Realism Mats and/or SEUS shaders, or any other shaders for that matter. This is why I spend a little time each day in the discord channel helping out those who need it.

I, along with the help of a few others, have done a TON of testing with both the RM (Realism Mats) texture packs and an array of different shaders, including SEUS PTGI, attempting to get them to cooperate and run smoothly together in all available setups. These setups range from straight vanilla Minecraft (no resource packs, no shaders) to full on Realism Mats 1024x with SEUS PTGI E11 and E12 with full raytracing settings enabled.

I have to preface this by saying that I am running the game in WINDOWED mode at 1366×768 on my 1440p monitor. There are two reasons I am doing this. First off, the lower the resolution, the smoother the gameplay, especially when we are talking about demanding shaders like SEUS PTGI. Secondly, WINDOWED mode because fullscreen at a lower resolution than your monitor’s native resolution makes the game look kind of fuzzy, and something is just off (it looks terrible). If something in this guide doesn’t make sense to you, is flat out incorrect, doesn’t correlate with what you have experienced, or you just can’t figure something out, please; do not hesitate to DM me in Discord @SubtleSloth#5794, or ask around in the Realism Mats Discord channels! That being said, if there IS something incorrectly stated in this guide, PLEASE LET ME KNOW! I am still very new to the Minecraft community, so I could be entirely wrong on something and not know it.

Basic Setup and Realism Mats Installation

DISCLAIMER:  Regardless of your computer specifications, SEUS PTGI is VERY heavy on all systems right now. It is still in it’s alpha stages and will most likely be the reason you cannot run the Realism Mats packs smoothly. If you have PTGI installed and are attempting to use it with the 1024x pack of RM, you will need AT LEAST an RTX 2080 Super, to achieve a smooth 60 FPS, and even that isn’t completely full proof. However, do not let this discourage you! The 256x and 512x packs run beautifully with most setups as long as your initial setup is correctly configured. That being said, your computer’s ability to run the packs with shaders, let alone PTGI, is going to be determined by the hardware and the in game optifine and Minecraft settings.

Java Minecraft is NOT like any other game in the sense that you can’t just crank up the settings and expect it to run perfectly smoothly, there is a delicate balance between performance and beauty when it comes to Java Minecraft and shaders. But first, there are some steps to initially set up your game in order to get you the smoothest transition into using the Realism Mats packs without crashing or getting weird results.

1. Drivers Update

Ensure drivers for your video card are up-to-date

2. Update Java

Ensure you have the latest version of Java Runtime Environment installed on your PC. If you don’t know where to get this, follow this link and download and install the Windows Offline (64-bit) version of Java.

3. Edit Minecraft Installation

In order for Minecraft to USE the most up-to-date version of Java that you just installed, you will need to tell it to, otherwise, it will use the Java build that is bundled with the game, which is Java Runtime Environment That version is VERY out of date, so there are bound to be issues.  In order to tell Minecraft what version of Java you want it to run, follow these steps:

      1. Open Minecraft Launcher
      2. Go to Installations tab at the top
      3. Click on the current installation you want to play OR click the 3 dots next to the  ‘Play’ button and click ‘Edit’ from the drop down menu (watch the GIF here).
      4. In the window that opens, click the drop down arrow for ‘More Options’ and scroll down to the bottom.
      5. Where it says ‘Java Executable’, click on ‘Browse’. In the newly opened File Explorer window, navigate to C:\Program Files\Java\\bin (the x’s represent the current Java version you should have just downloaded).
      6. In the ‘bin’ folder, find javaw.exe. If you have file extensions hidden, just find the one that says javaw and double click it, or click it and then hit the ‘Open’ button at the bottom of the window
      7. Now, in the address bar under ‘Java Executable’ in the Minecraft Launcher, you should see C:\Program Files\Java\\bin\javaw.exe
      8. In this same window, find at the very bottom where it says JVM Arguments. Look for where it says -Xmx2G (if you have already changed this at some point, then it might not be 2G). Change the 2 to a number that is NO MORE THAN HALF OF YOUR SYSTEM RAM. I recommend allocating 6-8GB of RAM when using Realism Mats and shaders. Most of the ram usage is going to go into actually loading the texture in the beginning, your game will likely run below the amount of RAM you have specified, but in order to prevent crashing and the textures not loading, having around 8GB should be ok.
      9. Now click Save and you can start your game and Minecraft will use the most up to date version of Java with a sufficient amount of RAM allocated. If you enable the Minecraft Output log in the main launcher settings, you can verify that what we just did is working correctly!

4. Install Optifine

  • This step is OPTIONAL if you are NOT going to use shaders, however, it is very RECOMMENDED because it makes gameplay much more fluid!


  1. Ensure you have the latest version of Optifine installed for the version of Minecraft you plan on playing. If you don’t know what Optifine is, or don’t know where to get it, click the following link and click on downloads at the top of the screen. Next, download the most up-to-date version of Optifine for the current version of Minecraft you want to play.

  2. To install Optifine, you will need to make a new installation in your Minecraft launcher for the version of the game you intend on playing (1.12.2, 1.14.4, 1.15.2, etc… (this version should match the version of Optifine you just downloaded)). Once you have created the installation, launch the newly created installation and once it is at the main menu, exit the game. (This is so that Optifine knows you have played the version of the game you are installing it for, if you don’t do this, Optifine will not install).

  3. Once you have the Optifine .jar file in your downloads folder, double click it to run it. Once it says it has been installed correctly, you can exit out of the Optifine installer. (NOTE: If you are playing on a modded game through Twitch, you will need to drag or copy and paste the downloaded Optifine .jar file into the “mods” folder for the specific modpack inside your twitch folder.)

5. Realism Mats Texture Pack

If you haven’t already, BECOME A PATRON! Imonedesign is putting a TON of time into providing us with an absolutely gorgeous set of textures to make MC more enjoyable to look at, the least we can do is support him in his effort!

If you want to become a Patron of Realism Mats, click the following link, donate to show your support, and get access to one of the most beautiful resource packs out there! NOTE: YOU NEED TO BE A DIAMOND TIER($8) PATRON OF REALISM MATS TO HAVE ACCESS TO THE TEXTURE PACK DOWNLOADS.

Once you have become a patron, and wish to download the Realism Mats texture packs, proceed to, log in, and go to the Realism Mats patron pages.

6. Recommended Shaders


Realism Mats was made to work with SEUS PTGI Shaders, click the following link and download the latest version!

For more information on Sonic Ether’s shaders, click the following link:

BSL Shaders (Free)
This shader also works well with Realism Mats texture pack, you can give it a try here:

Sildurs Shaders (Free)
Another amazing shader that works well with Realism Mats is Sildurs Shaders, with some beautiful visuals and effects and also a very smooth FPS!

7. Download Realism Mats

  1. Once you are on the Realism Mats Posts page, you should see the FULL PACK pinned to the top of the page.  (NOTE:  The FULL PACK contains all textures that have been given the Realism Mats treatment, and is updated with the newly released textures during each new release.  The standalone packs are still available to use as performance friendly screenshot packs.)
  2. If you DO NOT see the FULL PACK pinned, you will most likely see a “Clear All Filters” button at the top of the page to the left of the search bar.  Click this, and it should bring you to a page with the FULL PACK at the top.  ANOTHER way to get to the FULL PACK is to just click the Full Pack filter at the top of the page, right below the search bar.

  3. When you have found the FULL PACK, click on the title of the post, right below the image.

    This will bring you to a page that has links to download the FULL PACK for each compatible version of Minecraft.

  4. Once you have located the links to download the associated Realism Mats packs for the version of Minecraft you are playing, click on the download link and you will be redirected to a download page via Google Drive with the three different texture pack resolutions (256x, 512x, and 1024x) for the current pack you are trying to download. Double click on the resolution you would like to download, then click on the download button in the upper right.

8. How to Install?

Once the pack is finished downloading, open your downloads folder AND your associated Minecraft installation ‘resourcepacks’ folder in separate windows. The ‘resourcepacks’ folder will be in a different location depending on if you are playing modded or vanilla MC. If you don’t know how to find it, load up the version of MC you want to play, open the Options window and click on Resource Packs. Then at the bottom of the screen, click on Open Pack Folder, and it will open the folder you need to place your newly downloaded Realism Mats .zip files into.

Drag or Copy and Paste the downloaded Realism Mats .zip files from your Downloads folder to the associated ‘resourcepacks’ folder. (WARNING: DO NOT UNZIP ANY OF THE RESOURCE PACKS, DRAG THE ENTIRE ZIP FILE TO THE FOLDER)

If you already have Minecraft running, you will see your resource packs show up on the left hand side of the Resource Packs window. Click the arrow to transfer each of the desired packs to the right side of the window. If Minecraft is NOT running already, load up Minecraft, go into Options, Resource Packs, and transfer the desired packs to the right hand side. Now click Done at the bottom of the screen. (NOTE: You should have the Base Pack at the bottom of the enabled resource packs list, the order of the others doesn’t matter.) (ANOTHER NOTE: Depending on which packs you choose to load up, this action could take a little while (Upwards of 10-15 minutes for very large modpacks like MCEternal or Enigmatica), give it time, your computer may SEEM like it’s freezing up, but it will be ok, JUST DON’T TOUCH IT!)

9. Game Settings

Finally, the following are the screenshots of the in game Settings windows.  THE FOLLOWING SETTINGS ARE WHAT I AM CURRENTLY USING IN 1.16.4 TO GET THE ABSOLUTE BEST FPS I CAN WITHOUT SACRIFICING TOO MUCH OF THE GAME AND THE SHADER’S LOOKS. Here are my PC specs for a reference:

    • OS: Windows 10 64-bit
    • CPU: AMD Ryzen 9 3900X 12-Core 3.8Ghz
    • GPU: EVGA Nvidia GeForce GTX 1080 SC
    • 2x Samsung 1TB SSD
    • Motherboard: ASUS ROG STRIX X570-E Gaming
    • RAM: 32GB (16×2) G.Skill Ripjaws Series V DDR4 3600


If you have any questions about installing a shader pack, please feel free to ask around in Realism Mats discord!

You can download my SEUS PTGI settings file here:  Download
Paste it here: C:\Users\**USERNAME**\AppData\Roaming\.minecraft\shaderpacks

I am currently running the 512x Realism Mats FULL PACK with SEUS PTGI E11 in Survival at a SMOOTH average 45-60+ FPS in a 1366×768 window with these settings.  When I say smooth, I mean there is no stuttering or jittery feeling to the game. It isn’t 60+FPS smooth, but it is ABSOLUTELY PLAYABLE.  Depending on where you are in your world, the FPS will change, sometimes a lot.  When I am mining, I will get 60+ FPS, but out in the open with a bunch of trees, I will land on the lower part of 35-45 at times.  The 1024x Pack gives me issues, I cannot run it smoothly, so I choose to stay far enough away from it until I upgrade at some point (I would advise anyone with anything equivalent to a GTX 1080 or lower to do the same).

10. Settings from RM Videos

You can follow these settings if you want to get the exact same results from Realism Mats videos on YouTube

    • OS: Windows 10 64-bit
    • CPU: Intel i7-4970k
    • GPU: MSI GeForce RTX 2080 Ti VENTUS
    • 480GB SSD
    • RAM: 32GB (8×4)

Download the ultra SEUS PTGI settings file here: Download
Past it here: C:\Users\**USERNAME**\AppData\Roaming\.minecraft\shaderpacks

11. Finally

Start a game up and enjoy the gorgeousness that is Realism Mats 😁. If you want to add shaders to your already now gorgeous game, first off, prepare yourself for some troubleshooting and tweaking, and secondly, ask in Realism Mats Discord if you have any questions about obtaining/installing a shader pack.  My blog post Here also addresses how to obtain and install shader packs!  Thank you for reading!  If you made it this far, you are most definitely ready to play some Minecraft in a new, beautiful light!

Furniture Pack Mod​

This mod will let you place different modern furniture in your Minecraft house!
It’s available for all Diamond Supporters here

How to install?

    1. Download and install the compatible Forge version with your Minecraft version here:
    2. Copy and past “Furniture Pack 1.0.jar” file in the folder named “mods” in your Minecraft installation folder, something like this: C:\Users\*YOUR_USERNAME*\AppData\Roaming\.minecraft\mods
    3. Launch Minecraft, select Forge installation and click Play
    4. You will find the new furniture models in there own tabs when you are in Creative.

Frequently Asked Questions​

You need at least 16GB RAM with a decent GPU and CPU.

Minimum system requirements (~30 FPS):

  • 16GB RAM
  • 6GB Video Card RAM (VRAM)
  • Latest Gen i5 Processor
  • 2GB of free space

The game crashes when there is not enough dedicated RAM in your system, please make sure you have at least 16GB RAM, if so then you will need to allocate more memory for Minecraft by changing your Minecraft release installation settings as shown in the screenshot bellow:

-Xmx6G” means that you are dedicating 6GB of RAM to Minecraft.

For now the texture pack covers +120 blocks and models, almost everything you will see in a survival world is covered by Realism Mats texture pack, I update the pack several times every month so you can enjoy the best looking game-play.

There is no clear date yet since there is always something new to add and something old to make better, it’s a long journey till the end and I hope you can support me to keep making Realism Mats better with every release.

I spend so much time photographing, scanning, painting and 3d sculpting most of the textures I use to make sure you get the most detailed product, I mainly use Photoshop, 3ds Max, Mudbox and Blockbench.

Probably no, since Realism Mats is a high resolution texture pack there is a limit of how much texture I can cover because a complete high resolution pack will need a NASA computer to run it 🙂

For now the pack is available only for Java Edition because it’s the only version that can run Seus PTGI which is the pack is made for, soon there will be a Minecraft Bedrock Edition with GeForce RTX and I’m working to make sure that Realism Mats texture pack can support it so you can enjoy the Bedrock Edition with a fresh new look.

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