Problems with the projection plane in sketchup 6 + 8
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hi sketchup friends,
since i very often face extreme problems with the sketchup navigation (zooming & with different view angle, in both. ortho & perspective), where my model disappears before/behind the projection plane, i would like to hear some experience and tips, because:especially in perspective view, but also in ortho-view, my models simply disappears, when i zoom to work on details (especially on bigger groups or objectsredefining the axis system does not really help
scrolling nearer works , until the model disappears, but then 1 scroll-click back and the models jump to total view (makes me crasy)
turning the models from top - view to any angle lets the model disappear
using the zoom extents - button does not really help, either
so the question is:
do you know these problems?
is there a way to adjust the near plane for working in detail? any idea for the out-zooming scroll-problem?
thanx in advance for any experience report / info / help
stan
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Hi.
This sounds very much like the famous clipping issue. Read this article. And, I imagine others will comment also.
http://support.google.com/sketchup/bin/answer.py?hl=en&answer=36261
What is actually happening is more complicated than this following analogy regarding zoom and orbit/pan:
Consider your view of the model as if you are using a camera that can zoom in very tight, but it has a depth of field which has been preset by the program. When you zoom tight for "microscopic" view you exceed the camera's "focus" not really, but sort of. When you are in tight, the tiniest movements of your orbit or pan are magnified against the background and you introduce a problem for the camera because it determines where it is based on the immediate surroundings. If you scoot off, the camera grabs its reference on some far away element it can see within its scope. So the camera zooms out immediately and dramatically far.
Check a recent comment by AdamB in the last couple of days.http://sketchucation.com/forums/viewtopic.php?f=15&t=49896 -
hi, thanx for the links, i read them both, seems to be an unsolved problem, at least only workarounds available.
i will try all the ideas, we shall see.one thing surprises me. in my case , when. perspective view does not work, very often the orthogonal view lets me get closer to objects.....
thanx a lot
stan -
Not an unsolved problem but normal design. 3d models have 6 clipping planes, top, bottom, left,right, front and back and is not limited to SU. The reason for these is they limit the amount of rendering the program must do to keep performance at a reasonable level.Other wise they would have to render a huge model extents.Rendering is not done outside these planes and is the reason the model ' dis-appears" when the limit is hit. Some programs like Blender allow you set the planes. The link above gives good guidance on how to avoid the problem.
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@mac1 said:
Not an unsolved problem but normal design. 3d models have 6 clipping planes, top, bottom, left,right, front and back and is not limited to SU. The reason for these is they limit the amount of rendering the program must do to keep performance at a reasonable level.Other wise they would have to render a huge model extents.Rendering is not done outside these planes and is the reason the model ' dis-appears" when the limit is hit. Some programs like Blender allow you set the planes. The link above gives good guidance on how to avoid the problem.
ok, unsolved was the wrong expression.
i understand the limitations for rendering, my vis-software allows to adjust the clipplanes.i just was hoping to improve the editing work (modelling) in skp by a sort of 'hidden' adjustment of a near plane (for ex. editing components in huge project, where thos problem occures extremely)..
so thanx a lot for all the infos and replies to everybody....
sta
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