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What does OptiFine do?
OptiFine is an optimization and graphical enhancement mod for Minecraft that boosts FPS, supports HD textures, and adds visual features like shaders and connected textures. It also lets you disable certain graphical options that cannot be turned off without it.
Does OptiFine add new items or blocks?
Does OptiFine work without MCPatcher for HD textures?
Yes. OptiFine supports HD textures and fonts without MCPatcher, including custom terrain and item textures, animated textures, custom colors, and custom lighting.
Does OptiFine support shaders?
Yes. OptiFine includes shaders support based on the Shaders Mod by Karyonix.
How much does OptiFine boost FPS?
OptiFine can double FPS for smoother gameplay and may double or triple your FPS. It also reduces lag spikes and enhances performance.
Does OptiFine add dynamic lights?
Yes. OptiFine adds 
dynamic lights where handheld and dropped light-emitting items illuminate their surroundings. This is not related to the Dynamic Lights mod.
dynamic lights where handheld and dropped light-emitting items illuminate their surroundings. This is not related to the Dynamic Lights mod.What is connected textures in OptiFine?
Connected textures connect the textures of glass, glass panes, sandstone, and bookshelf blocks. This is one of OptiFine's graphical enhancement features.
Can OptiFine run on a low-end computer?
Yes. OptiFine's benefits are noticeable whether you have a low-end, mid-range, or high-end computer. It makes Minecraft run more smoothly and use fewer resources.
What is Better Grass in OptiFine?
Better Grass matches grass block side textures to the surrounding terrain. It is one of OptiFine's configurable visual improvements.
Does OptiFine let you switch texture packs without leaving the world?
Yes. OptiFine includes Fast Texturepack Switching, which lets you switch texture packs without leaving the world.
