SPIKEY STUFF
I posted about this way back.
http://grevity.blogspot.ae/2012/03/more-bermuda-triangles.html
http://grevity.blogspot.ae/2012/03/drawing-curtain.html
Spikey geometry is generally easier to make in sketchup than directly in conceptual massing. If anyone has the answer to doing it in Revit, please share, because I have failed. You can go so far, then you get stuck. Revit massing loves nurbs surfaces & curvy blends. Sketchup can't do that, has to fake curves with a smoothing algorithm, because what it really loves are triangles. It makes meshes.
Revit topography is a mesh, but just about everything else is solid geometry. The interesting thing is that it can take a Sketchup mesh & convert it into a solid ... within limits. For example, make an extrusion in Sketchup. Draw a couple of diagonals on faces. Push & pull a bit. Save. Now open Revit. Make an in-place mass (or an external mass family) Import the skp file into the mass. Finish mass. Make mass floors. It works.
But if you carry on playing around, pushing & pulling, triangulating & twisting: at some point it will break. Then you get the dreaded message as you finish the mass: "... contains only mesh geometry ... can't be used to compute Mass Floors ..." End of story.
A year ago I failed to find a way around this. Then I was thinking about some work that Jerome Buckwell & Liam Carey presented in Auckland. They have been exploring workflows between Sketchup & Revit for concept design with considerable success. I hope they will forgive me for including a low-res snippet from their presentation here. It's a bit different from what I was attempting, but it got me to thinking.
If you load the Sketchup file as a link, you can keep both applications open. Make a few changes in skp, save, reload in Revit. If no error, carry on. If error, backtrack & try again.
Bear in mind that my skp skills vanished about a decade ago. But gradually I found that I was evading the error message as I cycled through the process repeatedly
Just to demonstrate that Revit converts the mesh into a true solid I changed the cut pattern of the material to solid red. Section box cuts through just as if it were standard Revit geometry.
Using this method I managed to develop quite a complex form while keeping mass floors alive. It would be better if I had some clear rules as to what causes the "can't compute" error. But for the meantime the "baby steps cycle" provides a workaround.
I posted about this way back.
http://grevity.blogspot.ae/2012/03/more-bermuda-triangles.html
http://grevity.blogspot.ae/2012/03/drawing-curtain.html
Spikey geometry is generally easier to make in sketchup than directly in conceptual massing. If anyone has the answer to doing it in Revit, please share, because I have failed. You can go so far, then you get stuck. Revit massing loves nurbs surfaces & curvy blends. Sketchup can't do that, has to fake curves with a smoothing algorithm, because what it really loves are triangles. It makes meshes.
Revit topography is a mesh, but just about everything else is solid geometry. The interesting thing is that it can take a Sketchup mesh & convert it into a solid ... within limits. For example, make an extrusion in Sketchup. Draw a couple of diagonals on faces. Push & pull a bit. Save. Now open Revit. Make an in-place mass (or an external mass family) Import the skp file into the mass. Finish mass. Make mass floors. It works.
But if you carry on playing around, pushing & pulling, triangulating & twisting: at some point it will break. Then you get the dreaded message as you finish the mass: "... contains only mesh geometry ... can't be used to compute Mass Floors ..." End of story.
A year ago I failed to find a way around this. Then I was thinking about some work that Jerome Buckwell & Liam Carey presented in Auckland. They have been exploring workflows between Sketchup & Revit for concept design with considerable success. I hope they will forgive me for including a low-res snippet from their presentation here. It's a bit different from what I was attempting, but it got me to thinking.
If you load the Sketchup file as a link, you can keep both applications open. Make a few changes in skp, save, reload in Revit. If no error, carry on. If error, backtrack & try again.
Bear in mind that my skp skills vanished about a decade ago. But gradually I found that I was evading the error message as I cycled through the process repeatedly
Just to demonstrate that Revit converts the mesh into a true solid I changed the cut pattern of the material to solid red. Section box cuts through just as if it were standard Revit geometry.
Using this method I managed to develop quite a complex form while keeping mass floors alive. It would be better if I had some clear rules as to what causes the "can't compute" error. But for the meantime the "baby steps cycle" provides a workaround.
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