Subject:
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Re: New MAC Modeller for LDRAW FILES
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Newsgroups:
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lugnet.cad.dev.mac
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Date:
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Mon, 24 Feb 2003 15:01:38 GMT
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Viewed:
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1212 times
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Thanks for the feedback guys,
It’s good to see that the program does run – and no reported crashes?
I will answer some of the comments first,
Matt – not all parts are drawing; have you set the Ldraw folder location in
“Preferences” yet?
Matt – part selection, do you mean draw the part so that is is always
visible (similar to LdGLite) or draw the only the outline? OpenGL controls
the outline behaviour and is a new unexpected feature supplied by Cocoa
(over Carbon). I have experimented with permanently visible selected parts
and personally find them confusing to look at as there is no depth
perception, however, I can make this a preferences option with no effort.
Chris – just ignore the empty window as at the moment it serves no purpose –
just Cocoa opens it by default. I will place a brick in it soon. Also, I
haven’t actually, made a detector for the edit routine, so sor the moment
the dialog box is sometimes needlessly activated.
Rendering – How fast is the rendering relative to the Carbon Version? My
observations are as follows; on my development machine (Dual 1GHz MDD,
OS10.2.3, 512k) the actual drawing time seems to be faster than that of
Ldraw Viewer 0.4.2. I guess the hardware accelerated graphics of Quartz
Extreme is working. But I do have a problem, as yet when rendering, I have
not been able to accurately measure the rendering time as, the OS seems to
send the info to the graphics card and then return directly to program
operation. As yet I have not been able to get the graphic card to tell the
program when it has completed rendering (thus offering very little useable
feedback information for my timers), this make the rotation less smooth than
the Carbon Version.
Chris – Rendering, it’s a bit of both, actually I’ve optimised the Cocoa
version more than the Carbon version, however, the optimisation is more than
offset by Objective-C which places massive overhead on the system (I guess
this is the price of more flexibility). For this reason, I did indicate that
I believe that earlier Macs might be better sticking to the Carbon Version.
I will however continue to work in this area, as there are some compiler
settings that might affect this performance for the better.
Chris - The name, you’re right. Using the Lego word is likely to provoke a
reaction one day so I should change it – any suggestions?
Ldraw Viewer 0.4.2; the re-appearance of the Cancel bug. Chris, I’ll look
into it, I haven’t tested for this bug in the last release because I haven’t
altered that code since I originally corrected the bug (NB neither have I
mounted 10.2.4 on my system). How is the program other wise? As indicated in
the release notes, the memory handling has been completely rewritten – has
this solved the unexplained crashing during operation.
Chris, also in response to your observations of slow part selection, I
completely revamped the part selection and visibility options, have you
found these to be a benefit?
Andrew…
PS. As an Australian who currently works in the Mountains of Peru (I’m
Mining Engineer) attending Bricks West wasn’t in my foremost plans ;),
however later this year when I holiday in Australia I might choose to travel
via the USA, so if a show is on, it might give me an opportunity to meet
some of the community.
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Message has 3 Replies:
 | | Re: New MAC Modeller for LDRAW FILES
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| (...) If you're using OpenGL, you should be able to call glFinish to force the drawing to complete. The glFinish command blocks until all previous OpenGL commands have completed. Do NOT call this command except at the very end of you frame, because (...) (21 years ago, 24-Feb-03, to lugnet.cad.dev.mac)
| | | Re: New MAC Modeller for LDRAW FILES
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| (...) Sure...not a problem. I don't get a chance to do much here anymore, but after BricksWest, and some good LDraw convos, I'm more pumped than ever to get a Mac LDraw utility completed. (...) Not here. (...) No one told me how/where to do so (At (...) (21 years ago, 24-Feb-03, to lugnet.cad.dev.mac)
| | | Re: New MAC Modeller for LDRAW FILES
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| (...) Measuring load and display times using the menu bar clock. To load and display the dat for my caboose took 15 seconds in MLM and 3 seconds to load and display the dat in LDV 0.4.2. (...) I know it is, but I still have a hard time accepting (...) (21 years ago, 25-Feb-03, to lugnet.cad.dev.mac)
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Message is in Reply To:
| | Re: New MAC Modeller for LDRAW FILES
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| (...) Hi, I gave Mac Lego Modeler a try on a PowerBook G3 FireWire (aka Pismo) OS 10.2.4, 128 bit ATi RageMobility (something or other) w/8 MB VRAM. I loaded a few small models and then my caboose. The caboose looks very similar to the one that (...) (21 years ago, 24-Feb-03, to lugnet.cad.dev.mac)
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