Bad translucent texture in procyon

[illwieckz]

The central hologram should not look like that:

But like this:

[illwieckz]

Here is the shader:

textures/procyon/starchart512
{
        qer_editorimage textures/procyon/starchart512.tga
	qer_trans .5
        surfaceparm trans
        surfaceparm nomarks
	surfaceparm nolightmap
	surfaceparm nonsolid
	cull none
	{
                map $lightmap
                rgbgen identity
		blendfunc gl_dst_color gl_zero
        }
	{
		map textures/procyon/holocloud.tga
		blendfunc gl_dst_color gl_src_alpha
		//blendfunc filter
		tcmod scroll .00 .1
	}
	{
		map textures/procyon/starchart512.tga
		alphafunc GE128
		depthwrite
		tcmod scroll .01 .00
	}
}

The problems is likely because there is an actual lightmap stage while the shader uses nolightmap, so the lightmap stage is rendered as fullbright with a full black texture, but fullbright surfaces use overbright cancelling, so that's not white (1) that is multiplied with what's behind, but 1/obb, darkening what's behind.

[illwieckz]

In the future, we may add some code that simply removes useless fullbright lightmap stage on nolightmap shaders before rendering, but we better make sure the engine handles all the cases properly anyway.