How do you adjust texture tiling and offset on a material, and why is it useful?

• A. Modify the mesh UVs to tile textures.
• B. Adjust tiling/offset in the material's Tiling/Offset settings to repeat textures or align textures without changing geometry.
• C. Change the lighting settings to tile textures.
• D. Use a separate shader to tile textures.

Answer: (B)

Texture tiling and offset control how a texture maps onto a surface. In Unity, you adjust these in the material’s main texture settings. Tiling scales the texture coordinates so the image repeats across the surface; a value greater than 1 makes the texture repeat, while a value between 0 and 1 makes it appear smaller on the surface. Offset shifts the texture along the U and V directions, letting you pan the texture or align it with edges without touching the mesh geometry.

This approach is useful because you can cover large areas with a small texture, create seamless patterns, and quickly adjust how textures line up across multiple objects. It also enables simple animation of texture movement by changing the offset over time, without changing the underlying geometry or UVs. For typical tiling tasks, that built-in setting is the most straightforward and efficient solution; more complex effects would involve specialized shaders, but aren’t necessary for standard tiling.