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DarkBASIC Professional Discussion / Problem with .png and alpha channel

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Regnuar
17
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Joined: 25th Dec 2008
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Posted: 15th Feb 2011 23:05
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Hello all,

Had some time to play with dbp once again, but unfortunately there appears to be a problem with objects which have png "alpha channeled" textures. So, the issue simply is in the prtscr attachment, but as you can see, the trees for example have blurry edges (leaf parts). Any idea how to make those sharp as they should be?

Only place where this alpha thing seem to work correctly are two layers of fog, but everything beneath fog seem to have this ugly blurred textures.

Sorry about my bad english, hopefully you get what i mean.
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KISTech
18
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Joined: 8th Feb 2008
Location: Aloha, Oregon
Posted: 15th Feb 2011 23:27
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It's hard to see what you're talking about in that picture, but typically for tree leaves you would use,

Set Object Transparency OBJ, 6

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Regnuar
17
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Posted: 16th Feb 2011 07:17
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thanks but it only hides the leaf parts. Result attached. Any other solutions?
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Neodelito
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Joined: 29th Jul 2005
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Posted: 16th Feb 2011 07:40
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i have the same problem..
this solutions works for me:
- change to dds texture work
- upgrade to last version of dbpro, work but you know new bugs. (always bugs and bugs and bugs)
- Update graphics card drives
- set zscale object to 1
- show hidden polygons
and
- finally and the most working solution(always controversial).. change to unity or shiva or tgk (new problems but have less bugs.)



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Regnuar
17
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Joined: 25th Dec 2008
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Posted: 16th Feb 2011 07:56 Edited at: 16th Feb 2011 08:01
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to "show hidden polygons" will probably hit straight to the performance but i'm going to give a hit.

I only wish i had more time to get known with dbp to avoid bugs and even more i wish TGC had more time to repair them.

EDIT: Are you sure there is such command as "show hidden polygons"? couldn't find it.
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enderleit
19
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Joined: 30th May 2007
Location: Denmark
Posted: 16th Feb 2011 12:59 Edited at: 16th Feb 2011 13:00
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Don't have much experience with trees, but you might try some combination of:

set object transparency Obj, 2
disable object zwrite Obj (or disable object zread Obj)
set alpha mapping on Obj, Alpha (or off)

I use a combination of these commands for some .png smoke puffs that have an alpha channel...

- Martin Enderleit
http://sites.google.com/site/menderleit
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Green Gandalf
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21
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Joined: 3rd Jan 2005
Playing: Malevolence:Sword of Ahkranox, Skyrim, Civ6.
Posted: 16th Feb 2011 14:25
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Look at this thread:

problems with alpha mapping and trees

This issue seems to crop up about one a month. Does anyone use the search button?
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