What are the differences between 2018.2 and 2019.2 skybox UVs?

Questions & Answers
1

When using unity 2018.2.2f1 compared to 2019.2.9f1 (LWRP) the UV’s of the skyboxes seem different as if there might be a different skybox mesh between the two versions.

To show what I mean, I created a skybox shader just using UVs/texcoords to color the sky. The following images were taken in ortho/iso mode at the same perspective/angle.

Does anybody know what is happening here and is there a possibility to revert to this 2018.2.2f1 skybox model or something? This issue is affecting shaders I am re-writing.

2018.2.2f1:

148020-skybox-uv-2018.jpg
148020-skybox-uv-2018.jpg1712×864 56.2 KB

2019.2.9f1 (LWRP):

148021-skybox-uv-2019.jpg
148021-skybox-uv-2019.jpg1600×917 59.2 KB

2

Now, I thought this was causing an issue I had with a skybox shader I was writing but it turns out that I was calling normalize(UV) instead of normalize(UV.xyz) which was causing the issues.

So I am no longer having any issues but I guess this question still remains.

3

Turns out the 2018 project was in linear color space while the project I am working on currently is in gamma color space.