Why do rotated Gui elements not get clipped?

[Oppossome (Sera)]

Really bothers me that this bug has been around for such a long time

[sparker22]

Technical performance reasons. Its not happening. Sadly.
This is pretty much intended. Not a bug.

[TheNexusAvenger (Nexus)]

Here is the reason:

@zeuxcg

Stravant is correct - the reason this feature is not implemented atm is the requirement to change the UI code to work with arbitrary convex polygons everywhere instead of axis-aligned rectangles.

We can’t use scissor rectangles since they don’t provide full clipping support anyway as mentioned above; the only complete solution that does not need convex polygon clipping is stenciling, but it would require us to de-optimize current rendering code that aggressively merges geometry for visible UI elements to avoid CPU overhead.

We may end up implementing correct clipping some day but it would require a carefully optimized approach that only switches to slow convex clipping when absolutely necessary.

[As8D]

Instead of rotating 180 degrees, you could use

Documentation - Roblox Creator Hub

Documentation - Roblox Creator Hub

Just set ImageRectOffset to (width, 0) and ImageRectSize to (-width, height), and your image is flipped horizontally!

Mhm, for anything else than 180 degree rotation, it pretty much sucks that clipping doesn’t work

[Oppossome (Sera)]

Omg thank you x3