Hybrid Mode causes "lost" lines when geometry is viewed behind transparent or water surfaces


#1

I have been struggling with this for some time now, and it seems it may be a bug after all. Either that or I’m not understanding the “best practices” for selecting Raster Mode Vs. Hybrid Mode.

Obviously, the “jagged” lines in Raster Mode are horrible when presenting/printing drawings from Layout in native file format or export to PDF etc…

As we use a lot of “water” surfaces and “transparent” surfaces, the Hybrid Mode is preferred (over Raster) to avoid those jagged lines. BUT…when selecting Hybrid Mode, we lose critical lines anywhere they are meant to be seen behind Glass or under Water surfaces. Is this normal behavior for SKP Layout?

So…am I just left to either have no lines “beyond” or “behind” these transparent surfaces and clean vector lines…or settle for horrible “jagged” lines to be able to see the geometry behind these surfaces?


#2

BTW…here is the Tester file showing the problem…if that helps.

Tester_001.layout (1.4 MB)


#3

This is a known bug. The LO team are working on it.


#4

Thanks DaveR…any idea on a work-around?


#5

Well… Admittedly not the most convenient but it works.


Tester_001.layout (1.5 MB)

Transparent face component on one layer, the rest of the model on another layer. Two scenes in SU. Same camera position. One with transparent face on, second with the rest of the model. Stacked viewports in LO. Each on a separate layer so you can access the viewport on the bottom of the stack. Explode the transparent material viewport, edited resulting png image in external editor to make it transparent, save and update reference in LO.

Set the model viewport for the rest of the model to Hybrid or Vector as needed.


#6

That is definitely a work-around, thanks for the suggestion DaveR. We use Sketchup to quickly explore and conceptualize pools, wet decks, and other transparency heavy models…this “bug” is a real pain in the butt… hopefully it will be addressed soon in a new release??


#7

How does one “Stack a viewport” and have it align and sized correctly when bringing it back in from an external editor? If I understand the what DaveR is suggesting, take the same view, but the isolated scene of the just transparent surface, then drop down the opacity in say PSD, then import that back into Layout, and “stack” it above the underlying SKP scene, with the transparent surfaces, obviously turned off?

Though, when we import raster files, such as a PNG into PSD, we then have to assign both screen size and resolution…and I’ve never been able to figure out what the native resolution of a Layout page is per se?? So… I am left to manually re-size any graphic once imported back into Layout if i’m to stack it above an underlying SKP file/scene.


#8

First: a definition. A viewport is the view of the SketchUp model which should be tied to a scene in SketchUp.
If the viewport is exploded as I referred to above, it is no longer a viewport. It’s just an image.

Stacking viewports is simple. Copy the existing viewport and then paste it. The pasted copy will be pasted in the exact same location on the page as the original. Instead of using the regular Paste option, use Paste to Current Layer and paste the viewport to the layer above the one containing the original viewport.

After changing the newly pasted viewport to the scene showing just the water, explode the viewport. This will convert it to a raster image. Right click on the image and choose Edit in Photoshop (or whatever you’re using as your default image editor). Change the opacity of the image and save it. When you return to LayOut, the image should have the transparency as I showed and still be the same size and in the same location as it was before. No need to screw around with resize the image.