Many players wonder how they can have extreme graphics (ultra realistic) in Minecraft 1.16.3; the answer is a lot simpler than you think, Minecraft Shader Packs; they can be easily downloaded and installed from the Optifine. Installing Shaders for ultra realistic graphics Upgrade your Minecraft to 1.16.3. Download and install Optifine. Download the shader pack of your choice here. Open your minecraft using the Optifine profile. Go in "Options". "Video Settings". "Shaders". "Shaders Folder". A folder will be opened, here you paste all the shaders that you have downloaded, then close the folder. You will see a list of all the shaders you have, choose one and press "Done" Create a world, and you will see something like this.