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  hollow stud not replaced by LGEO's one
Posted by: Bertrand Lequy - 2021-03-28, 12:13 - Forum: Rendering Techniques - Replies (6)

Hi,

I'm rendering a lot of part these days, and I only noticed recently that normal stud are replaced by LGEO's one but not hollowed stud.

I checkd old (2016) rendering of mine and find some files where it was the case. I tried the same parts today and the stud weren't smooth.

It wasn't on the same computer, so I something's different. Does anybody have an idea ?

I generate my pov file using LDView.

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Thumbs Up Technic Parts 6326047 and 6332412
Posted by: Joachim - 2021-03-27, 16:59 - Forum: Part Requests - Replies (2)

Hi, New member here Smile Love Ldraw sofar.
I want to use the parts 6326047 and 6332412 (same part, different color) but they are not yet in the library.
Is someone already working on them?

Hope to hear soon. Thanks!



Attached Files
.jpg   250x250p.jpg (Size: 7.48 KB / Downloads: 45)
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  LDraw PBG generator tool currently down?
Posted by: Philippe Hurbain - 2021-03-27, 13:17 - Forum: Website Suggestions/Requests/Discussion - Replies (1)

...all is in title...

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  There'sa problem with part 527.dat
Posted by: Bertrand Lequy - 2021-03-26, 18:00 - Forum: Parts Tracker Discussion - Replies (3)

Hi, I suppose the matter comes from hi-res primitives, but when I open this file with LDview, and when I render it with pov-ray this helmet is hollowed, and some conditionnal lines don't match the trianlgles.

Problem disappear when I uncheck the primitives substitution. 

Or is it a LDView problem I should post in Viewer's subforum ?

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  Rounding Errors in primitives?
Posted by: Tery Hamer - 2021-03-25, 18:42 - Forum: Official File Specifications/Standards - Replies (23)

I'm a newbie, so I am nervous about asking... can someone confirm that either A) I'm talking BS, or B) there are rounding errors in the Official LDraw Primitive .dat files?

These are mostly derived from PrimGen2 (- but I haven't checked all).  Some of these files are perhaps 10 years old. Has anybody noticed this before?

AKAIK the standard is for the vectors in .dat files to be shown to 4 decimal places, removing trailing zeros.

For Rings, Cones the vector points for higher values of radii are a multiple of the cos/sin values of the segment angles times the radius. However, it would appear that the rounding is carried out on the cos/sin for the base radius (1, as used for Circle, Disc, etc), and <then> multiplied. That would be a No-No.  For the base and lower radii, the error may be only 0.0001 in a few cases.  But for the higher radii, these rounding errors mount up and impact the third decimal position.

So, BS or BUG?


tery

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  New cyli, cylo and ring primitives.
Posted by: Javier Orquera - 2021-03-24, 17:41 - Forum: Parts Authoring - Replies (11)

I created these primitives with the purpose to avoid the rotation of the corresponding ones. I hope they can be approved. If not, I send an email to the PT Admin for deletions.



Attached Files
.dat   a1-4cyli.dat (Size: 740 bytes / Downloads: 4)
.dat   a3-8cyli.dat (Size: 1.02 KB / Downloads: 3)
.dat   a3-8cylo.dat (Size: 1.4 KB / Downloads: 1)
.dat   a1-4cylo.dat (Size: 1.01 KB / Downloads: 1)
.dat   a1-4ring4.dat (Size: 460 bytes / Downloads: 1)
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  New 64 Bit AIOI ready for testing
Posted by: Willy Tschager - 2021-03-22, 11:44 - Forum: All Other Programs. - Replies (3)

Hi,

I compiled a 64 Bit version of the LDraw All-In-One-Installer and would appreciate if you could give it a try. The 64 Bit version installs exclusively 64 Bit programs:

LDCad
LeoCad
LPub3D
LDview

along with the usual goodies such as offline catalogue, models and links. Once this is published the 32 Bit AIOI will contain the rest of the progs such as MPDCenter or MLCad.

Please report if you run into issues with the new installer (which will be updated with the latest versions prior release):

www.holly-wood.it/tmp/LDraw_AIOI_2020-03_setup_64bit_v1.exe

w.

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Thumbs Up Part Request: 3068bpb1126 Powerpuff Girls Hotline Face
Posted by: Matthew Coleman - 2021-03-21, 15:11 - Forum: Part Requests - Replies (3)

Hey there, I’ve got another part to request for LDraw. It’s the PPG Hotline face 2x2 tile from LEGO Dimensions.

[Image: 3068bpb1126.png]

https://www.bricklink.com/v2/catalog/cat...=1#T=C&C=1

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  No models in main menu
Posted by: Sosiska Without Permission - 2021-03-19, 6:36 - Forum: Help - Replies (1)

https://ibb.co/T8Jr7tz


What to do? And this is everywhere



Attached Files
.png   heaven3.png (Size: 10.55 KB / Downloads: 30)
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  ldr to pov export error
Posted by: Bertrand Lequy - 2021-03-17, 14:59 - Forum: LDraw Editors and Viewers - Replies (21)

Hi,

thanks to Travis' help my batch pov generation script works fine.

But, I encountered several issues when rendering some parts.

for exemple :

Code:
"d:\lego\python\data\renders\0\14639p01.pov" line 1117: Parse Error: Expected 'object', undeclared identifier 'LDX_1_dash_16ring9_dot_dat_in_part' found instead

Render failed
So I investigate a bit about 1-16ring9.dat.

First of all, and obviously, the primitive is in my "ldraw\p\" directory, andthe 14639p01dat part opens without errors in LDview.

Then, I thought that some config file like LGEO.xml or LGDefs.inc were involved, but they do not have anything to do with that (if I'm right).

So I took a look at the buggy files and the integration of primitives in pov files.

If I understand the error message correctly, LDX_1_dash_16ring9_dot_dat_in_part has not been defined before, not like the other primitives involved in that part.

So, at some point, some lines like those for 1-16ri60.dat :

Code:
#declare LDX_48_slash_1_dash_16ri60_dot_dat_in_part = disc // Ring 0.0625
{
    <0,0,0>,<0,1,0>,61,60
    clipped_by
    {
        plane
        {
            <0,0,-1>,0
        }
        plane
        {
            <-0.38268343236508972627,0,0.92387953251128673848>,0
        }
    }
}

#declare LDX_48_slash_1_dash_16ri60_dot_dat = disc // Ring 0.0625
{
    <0,0,0>,<0,1,0>,61,60
    clipped_by
    {
        plane
        {
            <0,0,-1>,0
        }
        plane
        {
            <-0.38268343236508972627,0,0.92387953251128673848>,0
        }
    }
}


should have been written in the pov file but aren't. And I suppose that I can't choose randoms coordinates to solve the problem.

So my question is : do the problem come from a config file I didn't think about, or is it a export bug ?

I've the problem with other primitives on other parts.

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