ScaleTo incorrectly scales Trail.TextureLength

Bug Reports Engine Bugs
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#1

When calling ScaleTo on a model with a trail, the trail erroneously scales TextureLength leading to the trail’s texture tiling more than its original.

Left: Original Scale
Right: After model:ScaleTo(2)

Medal_uFSoBrDonS

Here is a repro file:
trailScaleIssue.rbxl (57.7 KB)

A basic repro would be to run the following in the command line, but it also happens with the Studio scale tool:

workspace.Model:ScaleTo(2)

Specs:
AMD Ryzen 7 7800X3D @ 4.20GHz
NVIDIA GeForce RTX 4080
32.0GB DDR5 RAM @ 5200MHz

Expected behavior

Trail.TextureLength should not be scaled.

5 Likes
#2

Yes, it seems I missed handling the TextureMode.

Is this the intended behavior?

  • When TextureMode = Stretch: No Scaling.

  • When TextureMode = Wrap / Static: Scale by the factor.

#3

Yeah, that looks like it is correct, it seems like wrap and static are handled correctly currently

#4

And WidthScale probably shouldn’t scale either right? It’s already a scale. Looks like someone really messed up this particular scale implementation :sweat_smile:

1 Like
#5

Yeah, looks like that should be ignored as well.

Left is before ScaleTo, WidthScale 0.5, right is after ScaleTo, WidthScale 1

image
image700×505 38.7 KB