# GPU based volume rendering fails if one dimension is more than 2000px

**URL:** <https://discourse.slicer.org/t/gpu-based-volume-rendering-fails-if-one-dimension-is-more-than-2000px/6546>\
**Category:** Support\
**Created:** [April 19, 2019, 6:22pm UTC](https://discourse.slicer.org/t/gpu-based-volume-rendering-fails-if-one-dimension-is-more-than-2000px/6546 "2019-04-19T18:22:35Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [April 23, 2019, 6:39pm UTC](https://discourse.slicer.org/t/gpu-based-volume-rendering-fails-if-one-dimension-is-more-than-2000px/6546/8 "2019-04-23T18:39:13Z")

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@lassoan  
We had a chat with @pieper today and done some test. There seems to be a disconnect between what our test hardware is capable (Geforce 1080TI) as reported by OpenGL Hardware Capabilitiy viewer ([OpenGL Hardware Database by Sascha Willems](https://opengl.gpuinfo.org/download.php)) and what is reported by VTK/Slicer (and also the WebGL report link that @pieper provided). According to the OpenGL Hardware Capability Viewer  
GL\_MAX\_3D\_TEXTURE\_SIZE is 16K for 1080TI, as oppose to 2K reported by VTK. Screen shots and the full report is below. I don’t know what to make of this, all I can say same issues persist in the latest Paraview as well.

You can query all reported 1080TI at  
[https://opengl.gpuinfo.org/listreports](https://opengl.gpuinfo.org/listreports)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/3/a3bc2e345b03cd489a78488f286ffe28950478e5.png)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/a/7a0752d5ea00c1091340c764c61a664705f9b8d7.png)

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