JSON patch for MultiMC for Optifine 1.14 Minecraft

optifine.Optifine.json

{
    "+tweakers": [
        "optifine.OptiFineTweaker"
    ],
    "formatVersion": 1,
    "libraries": [
        {
            "name": "net.minecraft:launchwrapper:1.12"
        },
        {
            "MMC-filename": "OptiFine_1.14_HD_U_F1_pre2.jar",
            "MMC-hint": "local",
            "name": "optifine:OptiFine:1.14_HD_U_F1_pre2"
        }
    ],
    "mainClass": "net.minecraft.launchwrapper.Launch",
    "name": "OptiFine",
    "requires": [
        {
            "equals": "1.14",
            "uid": "net.minecraft"
        }
    ],
    "uid": "optifine.Optifine",
    "version": "1.14_HD_U_F1_pre2"
}

OptiFine_1.14_HD_U_F1_pre1.jar worked fine using this method but pre2 crashes, I have no idea why.

Instructions for use.

1. Extract the Optifine jar with the installer. The file will initially be named OptiFine_1.14_HD_U_F1_pre2_MOD.jar. (or whatever your Optfine version is named)
2. Remove the trailing _MOD from the name to make OptiFine_1.14_HD_U_F1_pre2.jar. (or whatever your Optfine version is named)
3. Create a new 1.14 instance in MultiMC. Not 1.14.1 or 1.14.2 pre.
4. Right click on the Instance icon in the MMC window and choose Instance Folder from the menu.
5. Inside the Instance Folder create a new folder called "libraries".
6. Put the Optifine jar in this folder.
7. Back in the MMC window right click on the Instance icon and select Edit Instance from the menu.
8. In the Version tab of the window that opens, click the Add Empty button under the Advanced section at the bottom right of the window.
9. A dialog will open. Enter "Optifine" for the name and "optifine.Optifine" for the uid. (removing quotes ofc)
10. Press OK to accept the changes and close the dialog.
11. A new line will be added in the Version tab window. Select this line.
12. Click the Edit button from the Edit section.
13. Your system text editor for json files should launch with a window contain a few lines of text. If no editor opens then you can assign one in the Settings-External Tools-External Editors in the main MMC settings. Or use the tools in OS to assign default programs.
14. Copy the text from this gist and paste it into the json file. If you are using a version of Optfine that is different from the one listed, copy the name of your Optifine and replace the corresponding text in the file above. When finished, close and save.
15. You should now be able to launch and check the Options-Video Settings in Minecraft to see that Optifine is installed.

You can also use Edit Instance, click "Add to Minecraft.jar" and select the extracted file (OptiFine_1.14_HD_U_F1_pre2_MOD.jar).

That does the same thing.

Extract keeps telling me to run 1.14 first. How do I force it to extract?

IMPORTANT: To use this method you must have installed 1.14 in the Vanilla Minecraft launcher to be able to extract the file from the installer.

Doesn't work with 1.14.4

Alright, I found a fix for 1.14.4_HD_U_F2_pre1:

1. Have Minecraft 1.14.4 installed on the default MC launcher.
2. Run the OptiFine installer and extract, then move the extracted JAR to your instance's libraries folder and remove the "_MOD" suffix from the filename.
3. Run the OptiFine installer again but now Install OptiFine for default MC launcher.
4. Go to %appdata%\.minecraft\libraries\optifine\launchwrapper-of\2.1 and copy the JAR to your instance's libraries folder.
5. Go to the Version tab for your instance in MultiMC.
6. Add Empty
   Name: OptiFine
   uid: optifine.Optifine
7. Edit it
8. Paste the following into the file

{
    "+tweakers": [
        "optifine.OptiFineTweaker"
    ],
    "formatVersion": 1,
    "libraries": [
        {
            "MMC-filename": "launchwrapper-of-2.1.jar",
            "MMC-hint": "local",
            "name": "optifine:launchwrapper-of:2.1"
        },
        {
            "MMC-filename": "OptiFine_1.14.4_HD_U_F2_pre1.jar",
            "MMC-hint": "local",
            "name": "optifine:OptiFine:1.14.4_HD_U_F2_pre1"
        }
    ],
    "mainClass": "net.minecraft.launchwrapper.Launch",
    "name": "OptiFine",
    "requires": [
        {
            "equals": "1.14.4",
            "uid": "net.minecraft"
        }
    ],
    "uid": "optifine.Optifine",
    "version": "1.14.4_HD_U_F2_pre1"
}

And you're good to go!

This is what works for me:

1. Extract Optifine and let it save as OptiFine_xxxx_MOD.jar (yes you have to make a 1.14.4 profile with the Minecraft.jar official launcher first)
2. Go to MultiMC and Edit Instance
3. In Version section click Add to Minecraft.jar and select OptiFine_xxxx_MOD.jar
4. that's it, launch!

MultiMC saves the optifine's jar in /jarmods and creates the patch at /patches

I just tested with OptiFine_1.14.4_HD_U_F2.jar and everything worked just fine.

This is what works for me:

1. Extract Optifine and let it save as OptiFine_xxxx_MOD.jar (yes you have to make a 1.14.4 profile with the Minecraft.jar official launcher first)
2. Go to MultiMC and Edit Instance
3. In Version section click Add to Minecraft.jar and select OptiFine_xxxx_MOD.jar
4. that's it, launch!

MultiMC saves the optifine's jar in /jarmods and creates the patch at /patches

I just tested with OptiFine_1.14.4_HD_U_F2.jar and everything worked just fine.

I have been looking for a solution and this worked perfect for me. It worked for OptiFine_1.14.4_HD_U_F4.jar