Request: Port software water effect to OpenGL renderer.

[JulianHeuser]

The water effect used in the software renderer looks arguably better than the OpenGL alternative (examples here: https://twitter.com/joewintergreen/status/1066947983730663424)

Of course it depends on how this effect is coded, and I'm aware that it might not be possible.

[djdallmann]

Check out the latest BETA and this https://github.com/ValveSoftware/halflife/issues/1650

[MFKitten]

I absolutely agree, and there are apparently explosion effects in the software renderer that aren't available in OpenGL too.

[MFKitten]

@djdallmann did they do anything about the water ripple effect in the latest beta though?

[JulianHeuser]

I checked, the beta fixes texture scaling but the water effects are the unchanged.

[mleise]

The texture scaling was doable in a short amount of free time. The ripple effect needs some more hacks on the engine: either copy the software drawn ripple texture to hardware and render that or use pixel shaders (OpenGL 2.0).

[Deus-nsf]

I second this big time, it would be amazing to see this, plus working gl_overbright, and so the original and faithful vision of the game would be preserved :) (except very minor details)

[DevelopmentDragon]

Not sure if this is considered necrobumping this, but it would be nice to port that water effect over to OpenGL (as well as figure out how it's done).

[a1batross]

It's pretty easy to implement with just reuploading the texture https://github.com/FWGS/xash3d-fwgs/blob/master/ref/gl/gl_warp.c#L857-L1045 (see the end of file)

And performance drop seem to be negligible enough.

[falojazz]

I second this, the OpenGL water effect is inferior to software.

[captinwill]

I third this