Special:
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[DAT] (requires LDraw-compatible viewer)
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Subject:
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possible rendering problem with LDLite and transparent parts
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Newsgroups:
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lugnet.cad.dat.models
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Date:
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Sat, 29 Mar 2003 18:09:24 GMT
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Viewed:
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2514 times
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I have encountered a small problem rendering transparent parts with LDLite
2.4 and I am wondering if anyone else has run into it.
consider the file flat.dat, attached
It has a trans yellow, trans cyan and trans white brick in it as the first
step (helpfully lableled Y C and W respectively)
Then it adds progressively more parts. Each part is farther away from the
place where the trans are, so that the clipped image will need to be larger.
Render it with this command
C:\shortprg\LDRAW\MODELS\MTW_1005_Combine_and_cars\test>..\..\..\ldlite\ldlite.exe
-W2 -MS -S3.0 -C15
-A0.707104,0,0.707104,0.276288,0.920505,-0.276288,-0.65089
5,0.390731,0.650895 -D1 -U02500,02500 -I-4 -K flat.dat
(unwrap it)
As the size of the generated image (in terms of the area covered, or the
image dimensions, that is, not the filesize) the colors cycle through
correct, just the edge color with no dithered transparent color, and solid
color with no dithered transparency... weird weird.
Has anyone seen this behaviour? I suspect I'm overflowing a buffer somewhere...
Win 2K, .5G of memory, LDLite 2.4
I don't think it has anything to do with high parts counts or nested models
as this small file has neither, it has 7 parts and no nesting of mpds...
0 Flat file, transparent parts first, then parts to make model larger and larger in extent
0 Name: flat.dat
0 Author: Larry Pieniazek with MLCad
0 Unofficial Model
0 ROTATION CENTER 0 0 0 1 "Custom"
0 ROTATION CONFIG 0 0
1 43 10 -8 0 1 0 0 0 1 0 0 0 1 3005-C.DAT
1 46 30 16 0 1 0 0 0 1 0 0 0 1 3005-Y.DAT
1 47 50 40 0 1 0 0 0 1 0 0 0 1 3005-W.DAT
0 STEP
1 4 -10 -8 420 0 0 1 0 1 0 -1 0 0 2465.DAT
0 STEP
1 4 -10 -8 -230 0 0 1 0 1 0 -1 0 0 2465.DAT
0 STEP
1 4 -10 -8 1060 0 0 1 0 1 0 -1 0 0 2465.DAT
0 STEP
1 4 -10 -8 1700 0 0 1 0 1 0 -1 0 0 2465.DAT
0
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