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Houdini 21 Sneak Peek

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sutcliffe
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Really hope you can build user interface for APEX rigs. I couldn't see anything to suggest you could? Would have loved a 2d paint node in Copernicus as well. I already prefer Copernicus to Substance Designer and it would have been awesome to replace painter as well but maybe that's just being greedy(:
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johnmather
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The list at the end of the video isn't exhaustive.
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alexeyvanzhula1984
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Still no isolines in subdiv mode?
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raincole
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johnmather
The list at the end of the video isn't exhaustive.

Who the hell pressed the confused emoji on this lol
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coccarolla
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raincole
johnmather
The list at the end of the video isn't exhaustive.

Who the hell pressed the confused emoji on this lol

Probably someone who knows he's not going to get the keynote until September...
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LukeP
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alexeyvanzhula1984
Still no isolines in subdiv mode?

Yeah. Was a bit surprised by that too.
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alexeyvanzhula1984
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LukeP
Yeah. Was a bit surprised by that too.
For me, it’s not a surprise at all.
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LukeP
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alexeyvanzhula1984
LukeP
Yeah. Was a bit surprised by that too.
For me, it’s not a surprise at all.

Well, you’re modeller 2025 has isolines preview and that’s all we need :-)
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coccarolla
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When is this coming out? Did they mention?!
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Mike_A
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"Late August" according to the Keynote.
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khomatech
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A plethora of things to be excited about, as expected.

I do hope XPU compile speed has improved significantly. As it stands, I find it impossible to use for any serious lookdev work.
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johnmather
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khomatech
I do hope XPU compile speed has improved significantly. As it stands, I find it impossible to use for any serious lookdev work.
> XPU: Precompiled render kernels for faster startup
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brians
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Also
> XPU: Optimized compilation of user-defined shaders
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mandrake0
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Would be nice to know if there is a karma xpu for AMD under development.
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Mirko Jankovic
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Hopefully, H21 will come with some great new tutorials covering the latest features, like the upgraded auto-rigger and more — just so we can hit the ground running. Amazing release, I can’t wait. Thanks!
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BabaJ
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mandrake0
Would be nice to know if there is a karma xpu for AMD under development.

I had a support ticket this past May....part of it was related to your comment, here's Supports response:

...Although we are committed to other hardware types in the future (e.g., AMD, Apple, Intel, etc.), our current focus is still only on NVIDIA. The reasoning is that we're committing all development resources to fleshing out the feature set of Karma XPU. Sadly, it's not possible to give you an estimate of when that focus might change.

Please keep in mind that despite cross-platform compilers existing (and making bold promises on ease-of-use and performance etc...), it's actually a very large undertaking to port to other hardware and still retain reasonable performance + usability etc...

Thanks for your understanding

Regards,
Jim
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Erik Ws
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Do 21 have better Linux/Wayland support?
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Mirko Jankovic
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h20.5 qt6 is already perfectly stable on Wayland on Fedora and CachyOS that I've tested. On the other hand, on Nobara it is crashing, so something in Nobara is the problem, but others work perfectly fine.
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coccarolla
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When do you think the Siggraph presentations will be posted online?!
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SreckoM
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h20.5 qt6 is already perfectly stable on Wayland on Fedora and CachyOS that I've tested. On the other hand, on Nobara it is crashing, so something in Nobara is the problem, but others work perfectly fine.
For me on Ubuntu non qt6 version works. Qt6 version opens, but as soon as I move to other app, Houdini will just crash. On X11 everything works fine. And this is why devs hate building and maintaining apps for Linux Every distro, different story

Non qt6 version crashes also... So back to X11.
Edited by SreckoM - Aug. 19, 2025 15:21:50
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