Benson Shaw Posted May 6, 2014 Share Posted May 6, 2014 (edited) I can't figure this out. Why am I getting such huge aliasing in Renderworks perspective views and viewports? Same in FQRW as in the Fast RW. OGL is fine. Tried 1200 dpi on the VP, no better. Drawing pref or raster DPI is set at 150. Drawing is 1:500 scale. Objects are within a few hundred feet of drawing origin. Any ideas welcome. -B Edited May 6, 2014 by Benson Shaw Quote Link to comment
SonnyLuong Posted May 6, 2014 Share Posted May 6, 2014 I have a same machine as yours almost, but I have 16GB of RAM. That happened to me before. I think the graphic card is warming up. Save and close your file, shut your machine down for a while. When you re-opened your file, make some adjustments i.e. shut down all objects that you can not see I views. Re-render to see what happens. Quote Link to comment
Vectorworks, Inc Employee Matt Panzer Posted May 6, 2014 Vectorworks, Inc Employee Share Posted May 6, 2014 Hi Benson, Does the viewport have "Display Planar Objects" or "Project Screen Objects" turned on? If so, does it make any difference with them both off? Quote Link to comment
bcd Posted May 6, 2014 Share Posted May 6, 2014 Do you have some co-planar objects there? Quote Link to comment
Vectorworks, Inc Employee PVA - Admin Posted May 6, 2014 Vectorworks, Inc Employee Share Posted May 6, 2014 What zoom level are you at in the jagged view? I have seen things like that appear at extreme magnification. Quote Link to comment
Kevin McAllister Posted May 6, 2014 Share Posted May 6, 2014 I've seen this a lot with planar objects in various render modes. Its a big argument for 3d fills and nixing the psudo 3d objects.... Kevin Quote Link to comment
Benson Shaw Posted May 6, 2014 Author Share Posted May 6, 2014 All - The jaggies are only on planar objects ie 2d linework, only in perspective views in in Renderworks modes, incl Custom RW with highest anti aliasing. OGL and Poly renders are OK. Jaggies in both Deslgn Layers and VPs. Looks like Renderworks rasterizes 2d objects in perspective views. Toggle Planar option in VPs, makes the 2d objects invisible, so no jaggies. 3d objects seem to have no trouble. Yes, lots of zoom, but this is a large site with need to show details. Same result in a new file with one rectangle set to perspective RW. Zoom reveals the jags. Yes - this could be an issue with my graphics card. Restart does not alter the jaggies. See attached test file and screenshot of DL in perspective RW. Pink object is 2d rectangle, blue box is an extruded rectangle. Thanks for looking. -B Quote Link to comment
Vectorworks, Inc Employee PVA - Admin Posted May 6, 2014 Vectorworks, Inc Employee Share Posted May 6, 2014 (edited) It is most likely not your card if you are getting it on planar objects and not others. (Usually if its something with the card specifically the problems are all or nothing.) And I have seen related problems with planar geometry doing this before. I'll take a closer look and see if I can parse out the issues to be submitted. Side note: OpenGL got a bunch of upgrades recently and has been handling planar geometry better than RW does. Edited May 6, 2014 by JimW Quote Link to comment
bcd Posted May 6, 2014 Share Posted May 6, 2014 10.6.8 is pretty old too. you may need to make the leap to 10.9 Quote Link to comment
Benson Shaw Posted May 6, 2014 Author Share Posted May 6, 2014 And a new PCU. Saving, saving $$ -B Quote Link to comment
Kevin McAllister Posted May 6, 2014 Share Posted May 6, 2014 Benson, not sure of the specifics of your system, but many of the newer versions of OSX actually make older machines run faster because they are more efficient.... Kevin Quote Link to comment
Benson Shaw Posted May 7, 2014 Author Share Posted May 7, 2014 Thanks, Kevin for OS advice. Soon, but not yet. I need to keep the 10.6.8 running for some older files on other software. (The Mac XP) Did anyone try that test file to see if the lines look rasterized on a newer system/hardware? Thanks -B Quote Link to comment
Vectorworks, Inc Employee Matt Panzer Posted May 7, 2014 Vectorworks, Inc Employee Share Posted May 7, 2014 This is related to a bug report I reported. The bizarre thing about this bug is that the zoom level effects the severity of the problem - even on sheet layers. I created a viewport on a new 300 DPI sheet layer in your file. I then copied the viewport 3 more times. With the document zoom set to 100%, I rendered the first viewport, then zoomed to 200% and rendered the second, and so on... I've attached the results. In all 4 viewports, the settings are exactly the same. The only difference was the document zoom level at the time they were updated. Bizarre as this is, you might be able to experiment with sheet layer viewports and zoom levels until you find a sweet (or less bitter) spot. I did this for a project and found 800% gave me the best in my situation. I then placed a large note to myself (just outside the page) to remind me to zoom to that before rendering. Quote Link to comment
bcd Posted May 7, 2014 Share Posted May 7, 2014 It's a bug VW is not calculating the aliasing of planar correctly in perspective. However if you change the rectangle to a nurds surface you get the result you'd expect. Here is your file with the no pen at 1:24 Quote Link to comment
Benson Shaw Posted May 7, 2014 Author Share Posted May 7, 2014 Nice one, Brian. At least this bug has great potential for Op Art. Matt, thanks for all that good work on the zooms. I will see if I can find the sweet or not so bitter spot. -B Quote Link to comment
Vectorworks, Inc Employee Matt Panzer Posted May 7, 2014 Vectorworks, Inc Employee Share Posted May 7, 2014 You're welcome Benson. LOL! Brian, while your image is much more interesting than mine, it's missing one thing... Quote Link to comment
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