Quake3World

How would one make a simple semi-transparent texture, say, with an opacity of 50%?

Grey alpha channel and appropriate shader script

It must be easier than that?!

I added 'qer_trans 0.5' in the shader and the result is that the relative texture is 50% transparent in the editor.. However, I am aftering it being 50% transparent in-game.
Is there a simple command for the shader than can make it transparent in the game like in the editor?.. 'surfaceparm trans 0.5'?!

qer_trans 0.5 is a strictly GTKradiant relevant command, the game ignores it.

IIRC, you have to create the appropriate 32bit tga file for a 50% transparency. Obsidian would know this more precisely.

No need to actually make the alpha channel, I think. You can just use any old JPG and add: alphaGen const 0.5 to get 50%/grey alpha.

Tabun wrote:No need to actually make the alpha channel, I think. You can just use any old JPG and add: alphaGen const 0.5 to get 50%/grey alpha.

Ding ding ding! Assuming you want the ENTIRE texture to be 50% opaque.

Yeah, I was the entire texture 50% opaque.

Not working... Here is my shader:

textures/bla/bla
{
{
map textures/bla/bla.jpg
alphaGen const 0.5
}
}

It's a general shader directive, q3map_alphaGen const

Is still not working; has actually made it worse.. The texture is not loading now.
Here is the shader I used:

textures/bla/bla
{
{
map textures/bla/bla.jpg
q3map_alphaGen const
}
}

textures/bla/bla
{
{
map textures/bla/bla.jpg
alphaGen const 0.5
blendfunc blend
}
}

I think should work.

Hey man!

Awesome, it worked!

Thanks allot for that!

May need to remember this for the glass I use in AEcantw2...

Hey I was out the door earlier on today when I verified transparency, but now that I have taken the time to look at it properly I have discovered that although it is transparent, a texture behind it that is scrolling does not show through it... Anyone know what could be causing this?!

Some of my template_ae textures were/are showing this issue as well. It might be best for you to copy/paste the primary "glass" shader plus the shader that is not shown into this thread. That way everyone could take a closer look. A screenshot may also help.