Here's how to do it all. Install Minecraft Forge Before you can install "Minecraft" mods, you'll need to install a free app called Minecraft Forge.

You can install Minecraft Forge for free from the Forge website, and then use it to download and enable mods.

This guide provides steps to download and install shaders using Iris and OptiFine mods, and lists popular shader packs. Follow the instructions to transform your Minecraft world visually.