Forums Technical Discussion GSplat's rendering quality in vulkan viewport

GSplat's rendering quality in vulkan viewport

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noti
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I found that the quality of rendering 3dgs files in Houdini's vulkan viewport is sometimes poor, much worse than the rendering effect on the web page [superspl.at]：
I'm guessing this might be a problem with the radius of the Gaussian ellipsoid or the formula for the decreasing transparency of projected ellipse.

Edited by noti - Nov. 3, 2025 21:31:21

Attachments:
houdini.png (192.6 KB)
web.png (171.1 KB)
out.ply (12.2 MB)

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alex_he
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The quality issue is caused by the alpha culling we applied for performance optimization. Many points in this PLY file have alpha values lower than the current threshold, so they were all culled out. This issue has been addressed and should be fixed in tomorrow’s daily build.
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