Dynamic Blended Fog

the-environment-guy

Hello, was wondering if there is a way to do fog with multiple colours including alpha channel based on screen Z depth that can be dynamically controlled via gds or cpp? The current fog implementation in the WorldEnvironment node seems very limiting as it does not provide alpha or any colour options between the beginning and end. It's fairly strait forward to do this in a render but for Godot I'm not entirely sure, I'm guessing it can be done with nodes as a custom screen space shader. For clarification there is a video that demonstrates what I'm talking about, skip to 12:30 to see the fog example.

I'm a big fan of lighting so would love to work with this. Perhaps we will have better options on Godot 3?

x1212

I think effects like that should be possible just by using fragment shaders that use POSITION to get the distance of the fragment rendered to the camera to change the color.

the-environment-guy

Thanks, I will look into that. I do not have prior experience writing shaders. I'm assuming this would be through GLSL? It's my understanding that GLSL shaders cannot be dynamically controlled with a script, but even so this seems like a worthwhile thing to learn.

Megalomaniak

In godot's shader language the uniforms can be controlled/overwritten through scripts.