When I download Optifine Ultra from its website, I get a.jar file. When I double click on it, I get the following message: To use the “`java -jar OptiFine1.12.2HDUC7.jar” command-line tool you need to install a JDK. Along with this, I get an option to go to the Oracle website to download the 300+MB Java Development Kit.
- This is a tutorial on how to install Optifine onto Minecraft using OS X (Mac) Add Tip Ask Question Comment Download. Step 1: Going to Optifine.net. Using the Browser of you're choice go to optifine.net, I will be using Bing. To download Optifine you will need to select the version of Optifine you chose between the two adds.
- Overall, it is a great application for deleting software off your Mac. It has few features and is completely focused around the removal of excess data. The design is basic but simple to use. Should you download it? For those looking for a safe disk cleaner, OmniDiskSweeper is ideal.
- Here you can download Optifine for your Mac by clicking on the 'mirror' button next to the version you want. Optifine 1.13 for example, if you are downloading Optifine for Minecraft 1.13. Always download the version closest to the top. Next, we need to install Optifine. Doing this is super simple.
- Download Recommended 1.12.1 - 14.22.1.2478. Windows Installer. Note that the downloads in the list below are for getting a specific version of Forge. Unless you need this, prefer the links to latest and recommended builds above instead.
- On mac open finder, hold down ALT and click Go then Library in the top menu bar. Open the folder Application Support and look for Minecraft. Place the mod you have just downloaded (.jar file) into the Mods folder. When you launch Minecraft and click the mods button you should now see the mod is installed. OptiForge Mod 1.15.2 Free Download.
Installing the OptiFine Patch 1.12.1 for Minecraft1.6.2 (or newer) on PC will seriously enhance your block-building adventures. This patch is meant to provide more detailed, dynamic, and even somewhat more realistic graphics for your Minecraft experience.
With it you can expect a better-performing PC experience along with better and more immersive graphics. Among this patch's new features include a boost to the frame-rate, dynamic lighting, HD texture support, variable render distances, fog control, and so on.
Need to know how to install the OptiFine patch for your game? This guide will give you step-by-step instructions.
How to Install OptiFine Patch 1.12.1 for Minecraft
The Simple Way (For OptiFine 1.6.2_C4 and newer)
Double-click the downloaded JAR file to start the OptiFine installer
- Click 'Install'
- OptiFine should get installed in the official Minecraft launcher with its own profile, 'OptiFine'
- Start the official launcher and play!
The Complex Way (All OptiFine Versions)
If the above method doesn't work for you, or you're running a version of OptiFine that's too old to be compatible with the instructions above, here's another way you can get it up and running in your Minecraft game.
- Use the official launcher to download and start Minecraft 1.6.2.
- Go to the Minecraft base folder (shown in the official launcher when you click 'Edit Profile' and 'Game Directory')
- Go to the 'Versions' subfolder
- Rename the '1.6.2' folder to '1.6.2_OptiFine'
- Go into '1.6.2_OptiFine' subfolder
- Rename '1.6.2.jar' to '1.6.2_OptiFine.jar'
- Rename '1.6.2.json' to '1.6.2_OptiFine.json'
- Open the file '1.6.2_OptiFine.json' with a text editor
- Replace 'id':'1.6.2' with 'id':'1.6.2_OptiFine'
- Save the file
- Copy the files from the OptiFine ZIP file in '1.6.2_OptiFine.jar' as usual
- Remove the META-INF folder from '1.6.2_OptiFine.jar'.
- Start the official launcher
- Click 'Edit Profile'
- Select 'Use version: release 1.6.2_OptiFine'
- Click 'Save Profile'
- Click 'Play' or 'Login' to start the game.
Minecraft Optifine 1.12.1 Download
If only 'Play Offline' is available, then log out and log in again to fix it.
Installing OptiFine to Minecraft with Forge
There is a slightly different process for those of you attempting to install the OptiFine 1.12.1 update if you've got Minecraft with Forge installed. It goes like this:
- Use the official launcher to download and start Minecraft 1.6.2
- Use the Forge installer to install Forge
- Go to the Minecraft base folder
- Go to 'Versions' subfolder
- Go to subfolder 'Forge9.10.X.Y'
- Copy the files from the OptiFine ZIP file to 'Forge9.10.X.Y.jar'
- Remove the META-INF folder from 'Forge9.10.X.Y.jar'
- Start the official launcher
- Select profile 'Forge'
- Click 'Edit Profile'
- Select the checkbox 'JVM Arguments'
- In the field next to it, add: '-Dfml.ignoreInvalidMinecraftCertificates=true -Dfml.ignorePatchDiscrepancies=true'
- Click 'Save Profile'
- Click 'Play' or 'Login' to start the game.
If only 'Play Offline' is available, then log out and log in again to fix it.
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That's all there is to it! Some of you may have a more difficult time getting this OptiFine patch into your game, but one of the methods listed above should work for you. If you need to download the update for yourself to test these out, you can do so from the main OptiFine forum thread.
Optifine 1.12.1
Got other issues you can't figure out? Check out the rest of our Minecraft guides for more tips and fixes!