Transparency in PNGs

DaniJ · Post by **DaniJ** » Fri Jan 27, 2006 12:57

I'd rather put the offset in the texture definition in HIRESTEX (and if it ever becomes reality NTEXTURE.)

IMO that is a far better idea anyway. Embedding offsets into graphic files just seems wrong in my book, it also requires the use of (yet another) app to get the job done.

Post by **Enjay** » Fri Jan 27, 2006 13:47

But that's how Doom does it, and (G)Zdoom already does it with PNGs - offsets in the graphic. By going for offsets elsewhere you end up with 2 systems.

Caligari_87 · Post by **Caligari_87** » Fri Jan 27, 2006 17:54

Graf Zahl wrote:In that case your best way of action is to put a dummy 8 bit texture in the WAD and then replace it using HIRESTEX.

Like Nash said: Will that work for sprites?

I'm assuming it would be something like this:

PISGA0 <---- The dummy 8-bit sprite
PISTOL <----- My alpha-mapped PNG, replacing the dummy texture. Set offsets in HIRESTEX?

Post by **Graf Zahl** » Fri Jan 27, 2006 18:22

If you replace a graphic this way both in-game resolution and offset are taken from the lo-res version. The hires version is scaled to fit the same area.

Caligari_87 · Post by **Caligari_87** » Fri Jan 27, 2006 18:47

HEY! It...sort of worked

The alpha mapping is definitely there.

(crappy quick-test graphic screenshot)

Post by **Tormentor667** » Fri Jan 27, 2006 18:49

It's time that XWE supports PNG-Alpha stuffage!

chopkinsca · Post by **chopkinsca** » Fri Jan 27, 2006 21:25

Tormentor667 wrote:It's time that XWE supports PNG-Alpha stuffage!

According to Csabo, the PNG support will be fixed up before he releases a new version. Hopefully that new version comes out soon.

Post by **Tormentor667** » Fri Jan 27, 2006 22:45

That is great news indeed

YouTube · Post by **Nash** » Sat Jan 28, 2006 12:11

Nice Cals!

That also means high res HUD weapons graphics are pretty much possible too, eh?

EDIT: Yep, it works. HIRESTEX pwnz!

DaniJ · Post by **DaniJ** » Sat Jan 28, 2006 17:22

This would all be much easier if you just put your hires graphics in a ZIP and loaded that with GZDoom, rather than trying to force XWE into importing them correctly.

Caligari_87 · Post by **Caligari_87** » Sat Jan 28, 2006 17:45

Only one problem: For each graphic that I want to be alpha-mapped, I need a seperate dummy texture/spirte, right? Somewhere along the lines of 15 or more blank 320x240 graphics

Man, Haloguns is going to be huge...

Post by **Graf Zahl** » Sat Jan 28, 2006 17:50

If you use a .zip instead of a .WAD empty graphics will be packed to almost nothing so it shouldn't matter.

Post by **wildweasel** » Sat Jan 28, 2006 17:51

Caligari_87 wrote:Somewhere along the lines of 15 or more blank 320x240 graphics

They don't need to be that big. You can make them smaller, and you can just use the same offsets as a 320x240 graphic. You could, theoretically, make all your dummy graphics as small as 1 pixel and HIRESTEX would still display them correctly.

BlackFish · Post by **BlackFish** » Sat Jan 28, 2006 18:25

can you release a sample wad with the hires hud weapons?

Caligari_87 · Post by **Caligari_87** » Sat Jan 28, 2006 18:46

@WW: No, it seems that HIRESTEX remaps based on the attributes of the dummy graphic, including size.

I'll transfer them over to a zip when I'm finished, though. That will help.