No reflection in train glass

[YeoBen]

Water seen through glass on a train with colorwheel:instancing don't have reflections, making the water look invisible. Haven't tested with other contraption or other kinds of glass. Shader used is complementary unbound

• Glass used in the train is a "copycat layer" (from create:copycats+) with glass as the texture, this will give you no reflection on water
• Water seen through a "copycat sliding door" from the same mod on a train DOES have reflection.

water reflection with flywheel backend colorwheel:instancing water reflection with flywheel backend flywheel:off

[djefrey]

This is a known limitation with Flywheel. Translucent geometry rendered with Flywheel (stained glass on contraption, for example) don't blend correctly with world translucent geometry (water, for example). Base Flywheel has the same issue and this can't be fixed.
Normal glass don't blend correctly with Complementary, because the shaderpack forces the game to render glass as translucent instead of cutout.
Train doors are not impacted because they are not rendered with Flywheel.

[djefrey]

Update on the issue: I've released the 1.3.0-beta3 on GitHub, which changes the behavior. You'll now see water through train windows, but the reverse will not work anymore (the train windows won't be visible when underwater).
I'm unsure about this change so I would like to get some opinion.

[Nostradik]

Thank you, I installed 1.3.0-beta3 and now I can see glass and water blocks through the train windows, this is a significant improvement!