# DICOM volume rendering : MAX\_3D\_TEXTURE\_SIZE error

**URL:** <https://discourse.slicer.org/t/dicom-volume-rendering-max-3d-texture-size-error/1066>\
**Category:** Support\
**Created:** [September 16, 2017, 12:49pm UTC](https://discourse.slicer.org/t/dicom-volume-rendering-max-3d-texture-size-error/1066 "2017-09-16T12:49:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![chir.set](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/chir.set/32/66982_2.png) [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Post date:** [September 16, 2017, 12:49pm UTC](https://discourse.slicer.org/t/dicom-volume-rendering-max-3d-texture-size-error/1066/1 "2017-09-16T12:49:10Z")

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I get this error with Volume Rendering with some DICOM CT series :

ERROR: OpenGL MAX\_3D\_TEXTURE\_SIZE is 2048  
Invalid texture dimensions [512, 512, 2187]

No 3D model is computed. If I crop down the volume, Volume Rendering doesn’t complain.

Does this mean a hard limit of the video card is reached ? Would adding a second adapter resolve the issue (which would use AMD Crossfire here)?

I’m using the QT5/VTK8 build.

Thanks.

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<div class="post-metadata">

**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:** [September 16, 2017, 1:39pm UTC](https://discourse.slicer.org/t/dicom-volume-rendering-max-3d-texture-size-error/1066/2 "2017-09-16T13:39:53Z")

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For now, it seems that you have to crop or resample your volume if it’s very large. You can do both using Crop volume module.

We are going to move to a new rendering backend in a couple of weeks that might not have this limitation.