# how does bumpmapping work?
**URL:** https://discourse.paraview.org/t/how-does-bumpmapping-work/9654
**Category:** ParaView Support
**Created:** [May 21, 2022, 5:36pm UTC](https://discourse.paraview.org/t/how-does-bumpmapping-work/9654 "2022-05-21T17:36:33Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@bigfooted](https://discourse.paraview.org/u/bigfooted)
#### Post date: [May 21, 2022, 5:36pm UTC](https://discourse.paraview.org/t/how-does-bumpmapping-work/9654/1 "2022-05-21T17:36:33Z")
I’m sorry for this basic question, but I don’t seem to get bump mapping to work on a simple problem. Is there an example somewhere?
I just have a box and put a texture on it. I copied the normal texture image from here: [https://www.kitware.com/virtual-tour-and-high-quality-visualization-with-paraview-5-6-ospray/](https://www.kitware.com/virtual-tour-and-high-quality-visualization-with-paraview-5-6-ospray/)
(I have loaded the Embossing plugin and I have switched on OSPRay) I select Bump Mapped Surface in Representation. I do not see a difference when going from surface to BMS. The options in bump mapped surface do not seem to have any effect. So what am I missing here?
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 1, 2022, 12:47pm UTC](https://discourse.paraview.org/t/how-does-bumpmapping-work/9654/2 "2022-06-01T12:47:14Z")
Hi @bigfooted ,
Please share your data and screenshots,
Best,
---
### Author:  [@bigfooted](https://discourse.paraview.org/u/bigfooted)
#### Post date: [June 5, 2022, 4:44pm UTC](https://discourse.paraview.org/t/how-does-bumpmapping-work/9654/3 "2022-06-05T16:44:51Z")
Hi @mwestphal, I created a simple setup here:
> **[GitHub - bigfooted/paraview\_setups](https://github.com/bigfooted/paraview_setups)**
>
> Contribute to bigfooted/paraview\_setups development by creating an account on GitHub.
it’s just a cube with a texture. I do not see a difference between switching from Bump Mapped Surface to a regular Surface.
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 6, 2022, 6:51am UTC](https://discourse.paraview.org/t/how-does-bumpmapping-work/9654/4 "2022-06-06T06:51:35Z")
roughWood.png is missing
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 6, 2022, 6:52am UTC](https://discourse.paraview.org/t/how-does-bumpmapping-work/9654/5 "2022-06-06T06:52:53Z")
In any case, bump mapped is not related to texturing at all. You need data on your dataset to use it.