# Inconsistent rendering of point data in hexahedrall cells

**URL:** https://discourse.paraview.org/t/inconsistent-rendering-of-point-data-in-hexahedrall-cells/6536
**Category:** ParaView Support
**Created:** [February 23, 2021, 4:57pm UTC](https://discourse.paraview.org/t/inconsistent-rendering-of-point-data-in-hexahedrall-cells/6536 "2021-02-23T16:57:24Z")
**Posts on this page:** 1
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### Author: ![Kenneth\_Moreland](https://discourse.paraview.org/user_avatar/discourse.paraview.org/kenneth_moreland/32/15033_2.png) [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)
#### Post date: [February 23, 2021, 6:45pm UTC](https://discourse.paraview.org/t/inconsistent-rendering-of-point-data-in-hexahedrall-cells/6536/2 "2021-02-23T18:45:42Z")

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This is a known issue that is discussed at length here: [Unsymmetric contour rendered by symmetric data](https://discourse.paraview.org/t/unsymmetric-contour-rendered-by-symmetric-data/4118/13).

The issue is that as an optimization step, rendering systems will divide primitives into triangles, and that causes the interpolation to change from non-simplexes. Normally the difference is minor, but when you have large cells with dramatically changing data, as is your case, then the difference is much greater.

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