Optifine Download For Mac 1.12
Optifine HD Mod for Minecraft 1.13/1.12.2/1.11.2. June 25, 2018. For Optifine installed: Click the download link below to download the OptiFine installer jar file. Open installer with Java and just press click on “Install” button. 
Choose the OptiFine profile from the Minecraft launcher. Download and extract the zip file. Mac installation. Download and extract the zip file. Download links WeepCraft Hacked Client with OptiFine: 1.12.x with.
Downloader For Mac
Be sure to check this thread from time to time for updates and news! What is 'Sildurs shaders'? Sildur's Shaders is an extension of GLSL shader mod. This shaderpack adds several effects to the game, like shadows, volumetric lighting, bloom and water reflections. Unlike other shaderpacks, Sildur's Shaders is designed to work on all graphics cards and computers, including Macs, while still delivering a great graphical experience. See below for screenshots and download links. Vibrant shaders screenshots (v1.19).