# Color scalar overlay on VTK models

**URL:** <https://discourse.slicer.org/t/color-scalar-overlay-on-vtk-models/2675>\
**Category:** Development\
**Created:** [April 24, 2018, 5:18pm UTC](https://discourse.slicer.org/t/color-scalar-overlay-on-vtk-models/2675 "2018-04-24T17:18:49Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [April 26, 2018, 7:23pm UTC](https://discourse.slicer.org/t/color-scalar-overlay-on-vtk-models/2675/6 "2018-04-26T19:23:02Z")

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This topic should answer your questions, but feel free to follow up here, if something is not clear:

> [@Displaying textured 3D models](https://discourse.slicer.org/t/displaying-textured-3d-models/2521):
>
> I have a PLY made from a stereophotogrammatic scanner. It also has a texture file in jpg format. I tried setting the option for these texture files to “scalar overlay” and asked it to apply to the model I already loaded. When I do that, nothing happens, no error message nor the trace of the texture files as far as I can tell. There is no scalar listed under the “Scalar” tab of the models module. This is with 4.8.1 on windows.

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_[View the full topic](https://discourse.slicer.org/t/color-scalar-overlay-on-vtk-models/2675)._