# Scan is creating texture on markers?

**URL:** <https://forum.revopoint3d.com/t/scan-is-creating-texture-on-markers/14820>\
**Category:** POP Series\
**Created:** [May 17, 2022, 9:39pm UTC](https://forum.revopoint3d.com/t/scan-is-creating-texture-on-markers/14820 "2022-05-17T21:39:25Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Cody](https://avatars.discourse-cdn.com/v4/letter/c/ecd19e/32.png) [@Cody](https://forum.revopoint3d.com/u/Cody)\
**Post date:** [May 17, 2022, 9:39pm UTC](https://forum.revopoint3d.com/t/scan-is-creating-texture-on-markers/14820/1 "2022-05-17T21:39:25Z")

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I’ve been working on scanning large fiberglass fairings from an airplane. My plan is to use the scan to create moulds on my CNC machine, using the scans as a reference to begin the modeling in Fusion 360. I’m using techniques I’ve learned on the forum, scanning small sections and stitching them together in Cloud Compare. After a frustrating start, I’m finally getting some results that I’m happy with. One thing I can’t figure out though, is why the markers appear as large bumps on my point clouds??

I’ve screen grabbed a mesh of one small scan, so it’s more apparent. The scan also shows the perfectly smooth surface of the fairing much rougher than it actually is, so perhaps it isn’t a surprise that the stickers look like big puckered vaccination scars!

Because this particular fairing has a mix of large blank surfaces and some finer details, I’ve covered it in markers, and I’m scanning with a mix of marker and feature.

 ![capture](https://canada1.discourse-cdn.com/flex029/uploads/revopoint3d/original/2X/2/222d5f7d16c4e3a3f00724251bb8054554c2bdae.jpeg)

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**Author:** ![PUTV](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.revopoint3d.com/putv/32/15302_2.png) [@PUTV](https://forum.revopoint3d.com/u/PUTV)\
**Post date:** [May 17, 2022, 11:38pm UTC](https://forum.revopoint3d.com/t/scan-is-creating-texture-on-markers/14820/2 "2022-05-17T23:38:15Z")

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@Cody that is normal , the black surface around the markers create the effect , unusually you should not close the holes when meshing in Revo Scan , especially if you are doing reverse engineering , and if you really need the holes to be closed you could do that in Revo Studio using the tanged space mode for closing holes .

But since you use it for reverse engineering anyway I would ignore it . And if you use black surfaces for that type of work please use spray , adding too high gain while scanning dark objects with markers will make the bumps even worse .

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**Author:** ![Cody](https://avatars.discourse-cdn.com/v4/letter/c/ecd19e/32.png) [@Cody](https://forum.revopoint3d.com/u/Cody)\
**Post date:** [May 17, 2022, 11:45pm UTC](https://forum.revopoint3d.com/t/scan-is-creating-texture-on-markers/14820/3 "2022-05-17T23:45:14Z")

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Thanks for the info! This particular part is grey, but high gloss. I don’t have any spray but I’ve been scanning with the gain turned all the way down, and keeping the scanner at a 45° angle to the surface to reduce glare - it seems to be working alright.

When I get this all scanned and stitched together I’m sure I’ll have more questions about smoothing out the mesh

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**Author:** ![PUTV](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.revopoint3d.com/putv/32/15302_2.png) [@PUTV](https://forum.revopoint3d.com/u/PUTV)\
**Post date:** [May 18, 2022, 12:47am UTC](https://forum.revopoint3d.com/t/scan-is-creating-texture-on-markers/14820/4 "2022-05-18T00:47:58Z")

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@Cody when you working in Revo Studio , smooth the merged point cloud before meshing it , it will give you better results , the individual bumps need to be smoother manually in a 3D software of your choice , since you already captured it in your point cloud .