GLBoom+ colormap problem

I have a custom colormap to go with a custom palette. It works fine in PRBoom+ but not GLBoom+, everything retains the same colors as they would without a colormap change. Oddly, it does work in GLBoom+ with stock doom but the colors are of course wrong.

WAD is attached, intended to work with Mayhem 17

deepwatertest.zip

I don't think any hardware renderer properly supports custom colormaps.

For an example, First two shots from BOOMEDIT in PRBoom+ and GLBoom+ respectively:

My map in PRB+ and GLB+:

I downloaded and had a quick tinker, but I couldn't see why GLBoom+ (which usually handles colormaps very well) has problems with this.

Works OK (incl. GL) if you use -complevel 9 (or higher).

I don't think any hardware renderer properly supports custom colormaps.

2.4.8.2  @ 2007-10-16

[...]

[+]Boom colormaps are supported in OpenGL mode.

Boom colormaps may be but straight-up custom colormaps are certainly not fully supported.

2 hours ago, Grazza said:

Works OK (incl. GL) if you use -complevel 9 (or higher).

 

Something must be wrong with my GLBoom+ settings then, I'm gonna try a fresh install.

Fresh install of 2.5.1.5 and no difference. The default boom colormaps included with BOOMEDIT work until a custom palette is loaded. I guess that narrows down the issue but I'm not happy about it :1