# Surface like a diamond

**URL:** <https://discourse.shapr3d.com/t/surface-like-a-diamond/32501>\
**Category:** Modeling Questions\
**Created:** [June 18, 2024, 11:21pm UTC](https://discourse.shapr3d.com/t/surface-like-a-diamond/32501 "2024-06-18T23:21:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Fins](https://avatars.discourse-cdn.com/v4/letter/f/87869e/32.png) [@Fins](https://discourse.shapr3d.com/u/Fins)\
**Post date:** [June 18, 2024, 11:21pm UTC](https://discourse.shapr3d.com/t/surface-like-a-diamond/32501/1 "2024-06-18T23:21:33Z")

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Hello everyone and thank you for accepting me into your forum. I would like to create the project of a watch glass with the internal surface prismatic like a diamond. I’m not very expert in 3D graphics so I wanted to ask you for some suggestions. I would like to attach the file I created but as a new user I am not allowed.

Thanks in advance

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [June 19, 2024, 2:05pm UTC](https://discourse.shapr3d.com/t/surface-like-a-diamond/32501/2 "2024-06-19T14:05:50Z")

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Like a “Fresnel lens” like your car’s tail light is textured inside not outside?

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**Author:** ![Fins](https://avatars.discourse-cdn.com/v4/letter/f/87869e/32.png) [@Fins](https://discourse.shapr3d.com/u/Fins)\
**Post date:** [June 19, 2024, 5:51pm UTC](https://discourse.shapr3d.com/t/surface-like-a-diamond/32501/3 "2024-06-19T17:51:18Z")

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Hi Oregonerd,  
thanks for your answer, exactly, I would like to create internal prisms as if it were the surface of a diamond.

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [June 20, 2024, 3:38am UTC](https://discourse.shapr3d.com/t/surface-like-a-diamond/32501/4 "2024-06-20T03:38:53Z")

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A repeating geometric pattern. Diamond shaped. You could create one and use the pattern tool and then add/ subtract that to the lens. To make a diamond shape simply draw a diamond sketch, extrude it then use the scale tool and scale the top surface of the extruded diamond down to 0.01 [Shapr3D Webviewer](https://collaborate.shapr3d.com/v/S_O2niXdDgMp9GNtvvANl)