/vr/ - Retro Games

>>1318504
Only lazy scanline filters that just darken every other line make everything darker. A proper CRT shader, meanwhile, will compensate for this by making the colors of the pixels that were not darkened brighter. CRT-Geom does this.

Take this pic, for instance. If you were to compare this pic to a similar one that isn't filtered on something like Photoshop, you'd see the color values on the unfiltered image are about the same as the average between the darkened colors and brightened colors on the filtered one. A regular scanline filter, meanwhile, would result in a lower average, which is why the image looks darker.