# Catalyst 8.6

**URL:** <https://community.khronos.org/t/catalyst-8-6/54909>\
**Category:** OpenGL: Advanced Coding\
**Created:** [June 19, 2008, 1:59am UTC](https://community.khronos.org/t/catalyst-8-6/54909 "2008-06-19T01:59:47Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![imported\_Groovounet](https://community.khronos.org/user_avatar/community.khronos.org/imported_groovounet/32/75_2.png) [@imported\_Groovounet](https://community.khronos.org/u/imported_Groovounet)\
**Post date:** [June 19, 2008, 1:59am UTC](https://community.khronos.org/t/catalyst-8-6/54909/1 "2008-06-19T01:59:47Z")

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For once the release note isn’t pointless!

It speaks about “OpenGL Adaptive Anti-Aliasing Custom Filters support”. What is it actually? To each extension does it refer?

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**Author:** ![imported\_Groovounet](https://community.khronos.org/user_avatar/community.khronos.org/imported_groovounet/32/75_2.png) [@imported\_Groovounet](https://community.khronos.org/u/imported_Groovounet)\
**Post date:** [June 19, 2008, 3:45am UTC](https://community.khronos.org/t/catalyst-8-6/54909/2 "2008-06-19T03:45:52Z")

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It’s just a setting in the control panel…

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**Author:** ![dletozeun](https://community.khronos.org/user_avatar/community.khronos.org/dletozeun/32/85_2.png) [@dletozeun](https://community.khronos.org/u/dletozeun)\
**Post date:** [June 19, 2008, 5:01am UTC](https://community.khronos.org/t/catalyst-8-6/54909/3 "2008-06-19T05:01:15Z")

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Yes, I have seen this a long time ago in the control panel on windows. I think that is a kind of anti aliasing optimisation that consists in not apply it on all frames.

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**Author:** ![Eosie](https://community.khronos.org/letter_avatar_proxy/v4/letter/e/dc4da7/32.png) [@Eosie](https://community.khronos.org/u/Eosie)\
**Post date:** [June 19, 2008, 11:03am UTC](https://community.khronos.org/t/catalyst-8-6/54909/4 "2008-06-19T11:03:25Z")

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And they’ve removed GL\_ARB\_half\_float\_pixel because some entrypoints still don’t accept GL\_HALF\_FLOAT\_ARB (eg. glGetTexImage).

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**Author:** ![dletozeun](https://community.khronos.org/user_avatar/community.khronos.org/dletozeun/32/85_2.png) [@dletozeun](https://community.khronos.org/u/dletozeun)\
**Post date:** [June 20, 2008, 12:27am UTC](https://community.khronos.org/t/catalyst-8-6/54909/5 "2008-06-20T00:27:31Z")

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> [@Eosie](#):
>
> And they’ve removed GL\_ARB\_half\_float\_pixel because some entrypoints still don’t accept GL\_HALF\_FLOAT\_ARB (eg. glGetTexImage).

Huh? So we can’t load 16 bit fp texture images to a texture anymore with the latest driver?

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**Author:** ![Eosie](https://community.khronos.org/letter_avatar_proxy/v4/letter/e/dc4da7/32.png) [@Eosie](https://community.khronos.org/u/Eosie)\
**Post date:** [June 20, 2008, 1:36pm UTC](https://community.khronos.org/t/catalyst-8-6/54909/6 "2008-06-20T13:36:04Z")

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The extension disappeared because it was not complete in Catalyst 8.5, to be correct I’ve reported a bug concerning this glGetTexImage causing GL\_INVALID\_VALUE but I think it should work the same way as the last driver release, e.g. you CAN load 16bit fp textures, you just CAN’T retrieve them (must use GL\_FLOAT).

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**Author:** ![knackered](https://community.khronos.org/user_avatar/community.khronos.org/knackered/32/58_2.png) [@knackered](https://community.khronos.org/u/knackered)\
**Post date:** [June 20, 2008, 3:24pm UTC](https://community.khronos.org/t/catalyst-8-6/54909/7 "2008-06-20T15:24:01Z")

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and you MUST ignore what the extension string says?  
'kin ATI.

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**Author:** ![Eosie](https://community.khronos.org/letter_avatar_proxy/v4/letter/e/dc4da7/32.png) [@Eosie](https://community.khronos.org/u/Eosie)\
**Post date:** [June 21, 2008, 9:14am UTC](https://community.khronos.org/t/catalyst-8-6/54909/8 "2008-06-21T09:14:38Z")

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I know, it’s very unfortunate…