This has come up before in various threads. I think one thing to try would be to force additional refinement of the tessellation.
You can do this using the Split with Line function to create additional breaks as shown.
That's just a suggestion, may need more breaks, or perhaps a different arrangement of breaks (perhaps radially like pie sections, or a grid ...?).
split with line.jpg 256.7 KB
Split lines is a good suggestion and does work in some cases.
Another suggestion I have been given is to change the scale of your model (make smaller) in Visualize.
Something I have found to work well is to convert your SW model to obj and import into Visualize. There is a free macro to export your SW file to OBJ. You can find it by searching the forum.
I tried the concentric splits (in Solidworks) and also "split part" (in Visualize) just now and didn't really see any improvement with either approach.
Any other ideas?
I've had this problem with fitted glass parts. It is easily solved (in Visualize) by creating an "air gap" between the two contacting surfaces either by lightly separating the two surfaces or changing the scale of one of the parts. I won't pretend to understand how a ray-tracing algorithm refracts and reflects through mated transparent materials, but I have noticed that the size of the required gap is directly related to the quality of the model; if your SW model is anything but high quality, curved edges will be made of noticeably straight lines. Cylinder surfaces will render in Visualize as a series of flat planes. Mating cylindrical surfaces, like a glass stopper in glass bottle, will then exhibit your artifact.
This artifact is a good example of the conflicting needs of the engineer and the graphic designer. A high quality model is of little practical use to the engineer, in fact, it slows his or her modelling process and is useless for manufacturing. The graphics person, however, requires that extra quality despite the added demands of time and computer horsepower.
You are speaking of setting the . . .
Document Property / Image Quality / Shaded and draft quality HLR/HLV resolution
. . . right? There are other types of quality, but this controls how finely a curved surface is converted to flat faces. It also pumps up file size, so should be raised only as needed.
This happens in all rendering apps I've used including Keyshot, Photoview and Visualize.
I do the same thing that Rich suggested. I either move the part slightly (say .001in in the rendering APP) or cut it with an offset surface in Solidworks. My guess is that the triangles tessellate differently on the mating surfaces and therefore overlap slightly. So no amount of re-tessellating is going to help.
You can often see the same thing in Solidworks when you have 2 surfaces that are the same...I.E. when you have a solid and offset a surface from that part.
Hope this helps.
Looks like offsetting the planes by .0001" solved the problem for those. Still running into the same issue on the smaller rings, but I think I just need to offset those a bit further to ensure no tessellated contact.