Forums Technical Discussion Vulkan shader - Additive Blend mode

Vulkan shader - Additive Blend mode

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ikoon
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Hello, please is it possible to achieve an Additive Blend mode with the Vulkan viewport render?

Similar to the attached image, these are copies of grids with mandril texture, rendered with Karma XPU.



Attachments:
additive_mode.png (816.4 KB)

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ikoon
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Please, now with the new H22 release, is the above possible in the Vulkan viewport?
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jsmack
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ikoon
Please, now with the new H22 release, is the above possible in the Vulkan viewport?

I would also like to know this
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malexander
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Copnets have additive blending, but you'll have to sort the cards yourself. Create a copnet, place a File COP, select your file, then attach it to a Channel Swap and set Alpha to 0.

But H22 in general does not have per-pixel additive blending.
Edited by malexander - July 29, 2026 13:35:31

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emissive.hip (80.6 KB)

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ikoon
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Thank you so much! That is nice. I was hoping for a fast Vulkan viewport additive mode. At least for particles. So far I am experimenting with something similar, using Gsplats. A test render is here, it is realtime in the viewport:

https://framerate.tv/watch/qp8JEYPv [framerate.tv]

Best regards.

Attachments:
Screenshot 2026-10-12 170105.png (486.4 KB)

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