Water shading

[cityy]

I was messing around with water shading this weekend and documented it here: https://www.ferdinandlist.de/blog/idtec ... r_shading/
I was mostly reproducing existing knowledge but maybe it is useful for someone!

If anyone has any additional tips and tricks around water and fog, please shoot!

[cityy]

I updated the post to try some tips I got from quBit regarding envmaps on tesselated deformed meshes. Find the things at the bottom of the post! (videos included)

[lvlshot]https://www.ferdinandlist.de/img/quake/testWaterBlend/tesselation.jpg[/lvlshot]
[lvlshot]https://www.ferdinandlist.de/img/quake/testWaterBlend/result_mesh_turb.jpg[/lvlshot]

[Eraser]

Oi, cityy! You're still alive! Nice work on the water shading. It's pretty amazing that 20+ years later, people are still finding ways to make the game prettier.

[cityy]

Oi, cityy! You're still alive!

Heyo, alive and kicking, trying at least.

It's pretty amazing that 20+ years later, people are still finding ways to make the game prettier.

Not to leave a wrong impression here, this post merely collects existing knowledge. I know Hipshot has been blending water for ages. quBit's idea to put stuff on a mesh.

I'm hoping to make more samples like this one in the future.

[cityy]

I fixed a shader warning in Quake 3 related to deformVertexes normal that would cause shaders appear like they were missing. Wrote a small note about it here: https://www.ferdinandlist.de/blog/idtec ... es_normal/

[CZghost]

The robot renegade shader manual apparently lists parameters for deformVertexes normal as for deformVertexes wave.

[CZghost]

But looking to the source code, this is interesting:

Code: Select all

deformVertexes projectionShadow

I would like to know what that thing does.

[Hipshot]

Try making the water less transparent and a closer fade to the edge?

[LegendGuard]

I remember trying to put a video to the water shader. But only works with that engine (ZEQ2-Lite last SVN revision):
https://zeq2.com/lite/forums/viewtopic.php?t=7925