Liquid shader is back for the CS2 charms, this time with not-fake physics and not-fake refraction!*

*it's all fake, it's a videogame

The Grandaddy show in Seattle last night, they had a slideshow of old photos taken from various places on tour mostly. The headline got a chuckle from the audience when it popped up. It was followed by a cool horse.

@quantick.bsky.social fame

You should check out this new game @counter-strike.net prettyy good

The caustics from the interactions come from sampling the buffer again, this time reprojected to fit the underwater geometry from the direction of the sunlight. It has its limits and the fade happens when you approach the edge of the buffer. It's also refracted in the same way as the frame buffer.

The blue channel was originally just to add silt being kicked up but ended up used for more general long-lasting interations. It's used to carve out a path in the surface debris and the normal derived from this channel allows us to push the UVs apart a bit so it feels like you're moving it around.

The green channel is used to define where foam should be and is combined with other textures to make it look more detailed than the buffer can handle by itself (although I wish this looked better to be honest).

You can also see here how the red channel perturbs the UVs to give it a parallax effect.

The red channel's ripples become normals and are combined with ambient normals along with those from the surface debris and a little from the foam shape too (as we're calculating it anyway). These are then used for the lighting, reflection and refraction effects in the shader.

My cat tree has fruited! Does anyone know if this plump beauty is ripe for the picking?

How's it going on twitter sorry the everything app sorry twitter

Genuine question @dominos-pizza.bsky.social : Is that stuffed crust or classic?

Clearing out my parents house which isn't much fun, but it was heartwarming to see my mum kept hold of the t-shirt I made with Peter Beardsley's cock and balls hanging out

Post you from a different era. I suppose I still do colouring in, in a way

We had fun making some rain fx in the new CS2 de_train, maybe I should a breakdown?

t'rain

The atmosphere of our game

More recently I worked on the CS2 water and effects. I hope to share some more CS2 (and other) shader work here (and not there) in the future.

I do often tend to work on liquidy things - this was the water test we did at Campo Santo pre Valve move

The Half Life Alyx booze / liquid / bottle shader which I worked on at the start of the Covid lockdown and got a ridiculous amount of attention