HLRAD weird lightmaps Created 5 years ago2019-10-19 23:01:35 UTC by Yu2673

I have to get rid of this weird lightmaps. Can someone suggest any solution?

Is it about the lighting gradients?
I notice that in the screenshot, the lightmap tries to pull off a gradient on the ceiling, but in 24-bit RGB, it's a little bit limited and you get unnatural colour "bands", noise in the colour, because there are only 256 levels of lightness available.

Try using some less-clean textures, they can help get rid of the colour bands.

This occurs when a lightmap tries to pull off a smooth gradient, but the pixel format while rendering doesn't actually provide enough colours to smoothen them well enough.

admer, look closer lol

Yu, are you using default compilers that come with hammer?

Bruce, I use Vluzacn's ZHLT compilers with just "-extra" setting. And I never had any lightmap artefacts with them like this.
And a weird moment that there is a darken square on a wall that supposed to be white. One brush with simple texture.

double check if you are really using vluzacn's tools, this seems really unusual. are those bugged areas "world"? or maybe you accidently made them func_detail or some other entity?

are your vhlt 3.4? perhaps youre using JACK and the tools that came with it? i might be wrong but i think they are modified, if so, try using original 3.4 vhlt

also it seems like youre using direct3d mode, or is it opengl?

and give us your compile log