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.
Effects/model-combined.eff fix techniques numbering. Make active under rembrandt too. add model-combined-deferred as a stub for now for specific
Rembrandt use.
Users of model-combined with normalmaps should change the technique number to 9, and duplicate that entry for technique 8.
Fix some longstanding png warnings. Provide null_reflectdir.png for model-combined
This should fix part of bug #726
Signed-off-by: Emilian Huminiuc <emilianh@gmail.com>
