How the image wraps inside a Quad with a larger quad size than image size. This also affects how Meshes with texture coordinates which are outside the range of [0, 1] are drawn, and the color returned by the Texel Shader function when using it to sample from texture coordinates outside of the range of [0, 1].
repeat mode when the texture doesn't seamlessly tile.
The clampzero mode is not available on most mobile devices, and will fall back to the clamp mode when it's unsupported. Check the clampzero GraphicsFeature constant by calling love.graphics.getSupported.
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https://love2d.org/wiki/WrapMode