cmoss

cmoss

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Recent Forum Posts

Apex Autorig Builder main axis issue Sept. 16, 2025, 2:06 p.m.

It seems like for twist bones to work on the autorig builder, the main axis of the skeleton cannot be the z-axis, even if it is correctly set in the orientation settings. The direction of the upnode for the twist bones is always in the positive or negative z direction, and if that is aligned with joint main axis (facing towards or away from the child joint), the twist bones will not function. Is there a way to change this behavior, and set the up direction of the twist bones?

If you try to use the autorig builder on the capybara test character, you will see this behavior due to the joint orientations on the arms and legs.

Vulkan transparency in viewport still unusable in Houdini 21 Sept. 9, 2025, 12:52 p.m.

Until some form of order-independent transparency or alpha hashing is implemented, it looks like cutout is the only usable option in situations with overlapping transparent geometry. It seems like it uses any alpha value > 0 as 1, so adding a power after the alpha image in the material will allow you to control the alpha cutoff amount. I guess that will have to do for now, but hopefully this gets some attention in the future.

Vulkan transparency in viewport still unusable in Houdini 21 Sept. 9, 2025, 1:46 a.m.

Trying to use the Vulkan viewport for transparency mapped hair cards is still unusable and unacceptable. The edges are not sharp but a pixelated mess even on high quality. There are still depth sorting and lighting issues. I don't know why SideFX has deemed this production ready, but it isn't for game dev.

Please tell me I'm missing some setting or something. I guess back to OpenGL again.

Edit: Well, OpenGL looks like it has all kinds of issues. Lights don't work at all. Wireframes don't show.