Stuart Buchanan 98fda02e65 WS30: Combined land and water shader ...

Previously the water shader was separate and executed on a
different mesh.

This adds the water shader as a separate fragment function
(ws30-water.frag) and uses a material parameter passed in
as a Uniform to use it in preference to the usual texel
lookup.

Performance testing found a slight performance improvement
from having a single mesh, but a slight performance impact
from the extra fragment shader complexity.

2022-02-05 15:24:02 +00:00

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