Unity URP Skybox shader Graph not wrapping properly

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Hello, im having this weird problem where when creating a skybox shader for the Skybox Material in the Lighting > Environment tab. I have followed all the tutorials i could find and noone is having this problem. There is a visible seem in the middle of the sky that goes all arround the sky(see picture) alt text , it looks like its not trying to wrap onto a sphere but rather onto a plane but i dont know how to fix it. here are my environment sky settings: . dont know if this information is important but as for the shader graph's UV im using a position node set to world position and having it go through a normalize node(exactly as in all the tutorials), but no matter what i change it too the seem is still there so that tells me its not a shader problem. Ive gone through all the settings and nothing seems to work. Help would be very appreciated!

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Answer by andrew-lukasik · Feb 12 at 08:56 PM

The source of the problem here is that Voronoi node accepts float2 UV input.

When you pass float3 position there - it will become a float2( pos.x , pos.y ). Resulting in, basically, a planar projection.

I certainly noticed that some tutorials avoid addressing or even straight-up communicating this detail.

Here is something that might help you, maybe. This graph creates a skybox UV that wraps nicely around the horizons and tries to hide all the ugly distortions far below the horizon.

sky stars starfield uv shader graph

shader graph sky uv seamless wrap

screenshot-2022-02-12-223806.jpg (65.9 kB)

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Unity URP Skybox shader Graph not wrapping properly

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