[Wily Duck]

I'm trying to make one! However the problem I've run into is that it doesn't seem one can cross a mirror using depthwrite with a blendfunc.

Here's my shader as it stands:

textures/ut_superman/reflect_glass
{
surfaceparm alphashadow
surfaceparm nolightmap
surfaceparm trans
sort additive
portal
qer_trans 0.5
q3map_backshader textures/superman/shiny_glass1

{
map textures/superman/duck_transparent.tga
depthwrite
blendfunc filter
}

{
map textures/effects/tinfx.tga
tcGen environment
blendfunc add
}
}

"textures/superman/duck_transparent.tga" is a 32bit 16x16pix tga with the alpha channel made fully transparent and the rgb being black. I tried a different sort to maybe change when q3 rendered the shader, no luck. The different blendfuncs applied to the first stage result in either the mirror working or showing all black, never trans. The second stage always works, blending the environment mapped tga correctly.

If you have any ideas, please share them. If you know this just can't be done, let me know too. Thanks!

FSK405 a wily duck

[[T]BludShoT]

Check out the mirrors in the bathroom in ut_campus, that may help you (or maybe it won't).

[StrayCat (old)]

I believe ut_apartment has a mirror or two in it as well, you may want to chat with the creators of those maps.

[NulL]

[quote name='"Annihilator"]I could be wrong' date=' but don't the mirrors in apartment actually reflect your weapons as well?[/quote']

The mirrors have been fixed for quite a while now, it was a ut issue, nothing the mapper could do about it.

Im quite positive that its imposiable to render the portal as transparent, no matter what you make the blendfunc in the first stage, because the portal 'contents' are rendered before the first stage of the shader.

[Wily Duck]

And you are correct. Here's what I found out from map-center:

Quote

As I understand it from the initial post and thread title, what you are after is a pane of glass through which you can see the geometry beyond, but which also acts as a reflective surface using portal tech. (So the portal-generated reflection is partially transparent)

It's not possible to do this. You can either have an opaque reflection, or transparent glass. If you have a transparent stage in a portal shader then only the portal camera view will be able to show through that transparency.

It may be possible to fake it to some extent using a custom environment map - look at Cardigan's Q3 map Estatica for examples of this.

If you can't get outside the glass you could build a copy of the interior geometry outside the glass with an alphaed shader - obviously you get no player or other entity reflections though so probably not worth the effort.

That's too bad but oh well, right? Could have been fun.

-duck