# vtkPointGaussianMapper - SetSplatShaderCode

**URL:** https://discourse.vtk.org/t/vtkpointgaussianmapper-setsplatshadercode/1748
**Category:** Support
**Created:** [September 11, 2019, 1:24pm UTC](https://discourse.vtk.org/t/vtkpointgaussianmapper-setsplatshadercode/1748 "2019-09-11T13:24:08Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![dmreagan](https://discourse.vtk.org/user_avatar/discourse.vtk.org/dmreagan/32/7489_2.png) [@dmreagan](https://discourse.vtk.org/u/dmreagan)
#### Post date: [September 16, 2019, 2:43pm UTC](https://discourse.vtk.org/t/vtkpointgaussianmapper-setsplatshadercode/1748/5 "2019-09-16T14:43:32Z")

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I’m not sure if it’s any faster than `vtkGlyph3DMapper`, but you could try generating your own cubes in a geometry shader. I linked to a simple example in [another post here](https://discourse.vtk.org/t/geometry-shader-implementation/1189/3).

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