Iris/Oculus compatibility

[3TUSK]

There was a report to Iris^1 stating that SlideShow (the Fabric fork) does not work well with Iris 1.6.1.

An Iris dev explained that one of the following should happen in order to properly fix it:

• Implement BlendingStateHolder on our SlideRenderType.
• Our SlideRenderType extends from CompositeRenderType which Iris make it implement BlendingStateHolder.

Considering that there are forks of Iris ported onto Forge, we might want to address this on our end as well. After all, the odds of someone installing one of Iris forks into TeaCon modpack is not zero.

[3TUSK]

Update:

Oculus has fetched a workaround from Iris upstream which makes the extends CompositeRenderType unnecessary. However the wrong lighting issue still persists.

Without Oculus + shaderpack:

With Oculus + shaderpack: