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PB supports bmp transparency!!!
Posted: Sat Mar 29, 2008 11:29 am
by Num3
Well i didn't even know bmp could have transparency !
I've found it by accident actually, and it works under pb natively!
Here's the code!
Code: Select all
If InitSprite() And InitSprite3D() And InitKeyboard()
OpenScreen(800,600,32,"bmp transparency!")
For a=0 To 20
LoadSprite(a+1,GetCurrentDirectory()+"gfx\p"+RSet(Str(a+1),4,"0")+".bmp",#PB_Sprite_Texture | #PB_Sprite_AlphaBlending)
CreateSprite3D(a+1,a+1)
Next
a=0
Repeat
ClearScreen(back)
;ClearScreen(0)
Start3D()
DisplaySprite3D(a+1,200,200,255)
Stop3D()
FlipBuffers(2)
ExamineKeyboard()
If KeyboardReleased(#PB_Key_All)
End
EndIf
If ElapsedMilliseconds() - last > 50
last=ElapsedMilliseconds()
a+1
If a>=20
a=2
back=RGB(Random(255),Random(255),Random(255))
EndIf
EndIf
ForEver
EndIf
Here's a sample package with graphics!
File: 138kb->
battle.zip
Posted: Sat Mar 29, 2008 11:44 am
by Dare
Neat. Thanks
Posted: Sat Mar 29, 2008 11:47 am
by Edwin Knoppert
Must be a Vista thing?
I see only plain colors switching
Posted: Sat Mar 29, 2008 11:56 am
by Num3
Edwin Knoppert wrote:Must be a Vista thing?
I see only plain colors switching
Hmmm... That might be so... Going to check that!
Works with alpha here :S (under vista)
--Edit--
Did you download the package with graphics!?
Posted: Sat Mar 29, 2008 12:09 pm
by Num3
After digging around i've discovered bmp alpha transparency exists for quite some time, and that GDI supports it!
It's called Format32bppArgb. It's present in GDI+...
Tech Article
here (from 2003)
Posted: Sat Mar 29, 2008 1:34 pm
by Kaeru Gaman
with Sprite3D, Alpha Transparency also works with PNGs
it's a capability of your grafix card when using Sprite3D.
I didn't know that BMP can hold an Alpha channel,
only knew that there is a special BMP format with a designated transparent color.
you could use them in imagegadgets to have a transparent color,
with the VB6 examples such bitmaps were included, but I didn't find a way to create those BMPs.
Posted: Sat Mar 29, 2008 6:54 pm
by Violet
Nice to know, but I do not recommend to use Bitmaps with Alpha Channel.
That is very special (already read in wiki some time ago), just very few applications can handle it (Photoshop of corse, with GIMP I am not sure).
Posted: Sat Mar 29, 2008 8:27 pm
by Derek
Num3 wrote:Edwin Knoppert wrote:Must be a Vista thing?
I see only plain colors switching
Hmmm... That might be so... Going to check that!
Works with alpha here :S (under vista)
Yep, works here under Vista Business.
planetary explosion!!! XD
Posted: Fri Jun 20, 2008 3:56 am
by zefiro_flashparty
woaa nice effect =)
epileptic kids, not see the example
Posted: Fri Jun 20, 2008 2:08 pm
by bobobo
bmp (v4/5) can hold alphachannel und are usable as container for
png / jpeg(fif) formats
look @
http://msdn.microsoft.com/en-us/library/ms532301.aspx
Posted: Fri Jun 20, 2008 3:39 pm
by ricardo
Does IE supports bmp with alpha transparency?
Posted: Mon Jul 07, 2008 7:12 pm
by Violet
I know that Internet Explorer 7 is supporting PNG Images with Transparency (I tested it).