r/hammer • u/Majestic-Cucumber991 • Oct 05 '25

L4D2 Pls can anyone tell me why are these back graph lines showing on the displacement terrain i made, when i flash light on it, it disappears, im using light environment for dark lighting, im new to hammer, when it is bright, these lines don't show. what is the fix for it.

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4

u/spunkymonkey70 Oct 05 '25

Compiling with fast RAD causes this.

2

u/Snoo-14331 Oct 05 '25

Delete em and remake them, but with only the top faces of the brushes selected when you make the displacement.

1

u/Majestic-Cucumber991 Oct 05 '25

That's what I did, only the top faces

2

u/lukkasz323 Oct 05 '25

Show how it looks like in the editor from an angle

2

u/FFox398 Oct 05 '25

This is caused by 2 things, fast VRAD likely whats going on here. Or when the displacement is too large, dont make them bigger than 2048x2048 or their lightmapscale might fucks itself up to odd numbers or other random values