# R9 BUG - Procedural textures issues

**URL:** <https://discourse.mcneel.com/t/r9-bug-procedural-textures-issues/220728>\
**Category:** Rendering WIP\
**Tags:** windows, texture, materials, procedural\
**Created:** [July 10, 2026, 12:32pm UTC](https://discourse.mcneel.com/t/r9-bug-procedural-textures-issues/220728 "2026-07-10T12:32:54Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Teo](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/teo/32/769361_2.png) [@Teo](https://discourse.mcneel.com/u/Teo)\
**Post date:** [July 10, 2026, 12:32pm UTC](https://discourse.mcneel.com/t/r9-bug-procedural-textures-issues/220728/1 "2026-07-10T12:32:54Z")

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Hello, it seems that the procedural maps do not have antialiasing or mip mapping applied. Moreover, if I select them for custom material texture color map (while in Rendered view), Rhino remains frozen for quite a long time. This does not happen when I select a bitmap based textures types.

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**Author:** ![Japhy](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/japhy/32/487647_2.png) [@Japhy](https://discourse.mcneel.com/u/Japhy)\
**Post date:** [July 10, 2026, 2:32pm UTC](https://discourse.mcneel.com/t/r9-bug-procedural-textures-issues/220728/2 "2026-07-10T14:32:28Z")

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Hi Teo,

Thanks for reporting both of these. i was able to confirm the freeze here in the latest beta — assigning a procedural (Wood, Noise) to a custom material’s color slot in Rendered view locks Rhino up for about a minute, while the same slot with a bitmap is instant. Logged as [RH-96906](https://mcneel.myjetbrains.com/youtrack/issue/RH-96906)

Also logged the missing antialiasing / mip mapping on procedurals in the viewport as [RH-96905](https://mcneel.myjetbrains.com/youtrack/issue/RH-96905)

Thanks again!

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**Author:** ![brian](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/brian/32/504171_2.png) [@brian](https://discourse.mcneel.com/u/brian)\
**Post date:** [August 4, 2026, 9:40pm UTC](https://discourse.mcneel.com/t/r9-bug-procedural-textures-issues/220728/4 "2026-08-04T21:40:54Z")

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[RH-96905](https://mcneel.myjetbrains.com/youtrack/issue/RH-96905) is fixed in Rhino [BETA](https://discourse.mcneel.com/t/welcome-to-serengeti/9612)

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<div class="post-metadata">

**Author:** ![Teo](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/teo/32/769361_2.png) [@Teo](https://discourse.mcneel.com/u/Teo)\
**Post date:** [August 22, 2026, 11:32am UTC](https://discourse.mcneel.com/t/r9-bug-procedural-textures-issues/220728/5 "2026-08-22T11:32:31Z")

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Hi Brian,  
this has been improved,  
now it takes between 5 and 10 seconds to select procedural map textures,  
but it’s still quite slow compared to selecting bitmap textures. Antialiasing is working.