Get pollution isobands

[darkfrei]

Hi devs!

Here is the water pollution layer, that changes the color of water.

Please see screenshot:

2021-01-24T22_51_18-Factorio 1.1.15.jpg (2.89 MiB) Viewed 1825 times

I've made a mod, that makes pollution isolines. Of course, I want to make isobands too. I am not happy with my isolines right now.

Is it possible to read vanilla isobands for polluted water?

[Rseding91]

I don't understand the request. Pollution is a simple value per chunk; we don't store any other information than that. The water coloring is done purely in a shader based off those values.

[darkfrei]

I don't understand the request. Pollution is a simple value per chunk; we don't store any other information than that. The water coloring is done purely in a shader based off those values.

The original mod Smog Visual Pollution also uses just values per chunk. All users ask better graphics, the edge between chunks is too visible.



My idea was to cut the pollution squares to pollution isobands. I've made isolines, but sometimes by random-chunk-update they are not connected anymore.

I've noticed that the vanilla's green water pollution is almost the same as this isolines wanted isobands. I cannot see any edges here.

[bormand]

I cannot see any edges here.

They just calculate interpolated value for every pixel.

Unfortunately, draw functions accepts only a single color. So, mods can't do anything like that. If draw_polygon() would accept per-vertex colors and would be able to interpolate between them, your mod can just draw chunk-sized rectangles (just as it does now) and get nice smooth overlay.

[nastyslave]

Please DEVs, give us some mod technology that can nicely color the polluted air like game colors water!