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Kaare Baekgaard

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Everything posted by Kaare Baekgaard

  1. If the version of that FormZ is pre 4.0, I have had no succes with importing IGES files into VW - if they contain anything other than polygon-based geometry. After that version I have not tried yet. From other sources, it often works - and sometimes not. If the objects of the file are nurbs based, it is really cool to get the excact information through IGES rather than a polygon mesh through DXF/DWG. If it does not contain nurbsbased objects - chose the DXF/DWG. I have tried the SAT format a couple of times, but never sussesfully imported anything through it. I wonder what it is good for.
  2. Wood textures are not always oriented the same way. Sometimes I want to change from one texture to another - only to find, that I have to change the mapping on several objects. It would be nice, if I could rotate the texture globally from within the texture ressource dialogue.
  3. I have stated my question poorly: Photoshop is primarily pixel-based. EPS is pixel- and vector based. If you are going to use the export in Photoshop, you only utilize half of the formats ability - and not necessarily the better half. Perhaps you are better off using a purely pixel-based format like Tiff or Jpeg?
  4. Why use EPS as export format, when you want to end up in Photoshop?
  5. If you have Adobe Acrobat (or Illustrator), you can save the PDF as an EPS - or a high resolution JPG. From Preview, also to some formats, though not the EPS. It's not perfect, but it's there.
  6. Imageprops in VW cast shadows and show up in reflections. Those are hard to get right i Photoshop. It would be very nice to have some kind of preview option for imageprops in VW in wireframe like the preview in the 'Attribute Mapping' tool.
  7. You can't. Iges is supposed to be standardized, but I have had different results importing from different sources. Also separating objects can sometimes be a problem after import. If you have other 3D programs than VW, maybe you can try one of them as a translator. If not ask the source to change settings and export again. When it works, it is quite wonderful compared to DXF/DWG.
  8. If you have Quicktime Pro, you can create an animation in the usual way, open the resulting movie in Quicktime and export it to a picture sequence. Then batch convert these in Photoshop or Grapic Converter and stitch them together. You will hardly save much in the way of filesize compared to exporting to the MOV-format with 256 colours, however.
  9. Quote: >If you can draw this perspective and ensure that all the buildings are set at their correct Geodetic heights within a week your hired. Sorry if I upset you. But am I wrong in assuming, that all these buildings are already there to be photographed - and that what you need to do is to document the impact of a new building in that context? If that is the case, the angle of the camara lens can be read from the camera. The volume and borders of the new building can be established with great precision - by drawing extension lines from the corners of paralel, rectangular surfaces, establishing vanishing points and horizon. Using these with objects of known height and location to establish the excact borders of the new building mass, and fit the 3D model into these borders. If these steps are followed, and the 3D model fits, it will be correctly represented. I can do this in less than a day, so can you. What am I not getting here?
  10. With all respect, it seems to me, that what you need is to educate the persons at the planning hearings - and perhaps yourself - in the principles of perspective. If you have not yet done them by hand, perhaps you should try that.. It is a surprisingly exact method. If you go to a meeting filled with uncertainty, it is not surprising, that they will question the material, you present. If you are confident and speak with authority, they will accept it.
  11. You probably do not have a nurbs surface, but a nurbs curve. Transform it into a surface. - Or what you have is a group of surfaces. Ungroup and add solids.
  12. Unless I am mistaken, VW 10 does not export to 2005 dwg, but version 11 does (With VW 10 you can export to 2002 dwg). Both 10 and 11 will run with OS 9.2, however. The best way to export is to apply classes consistently to all objects, so that you can use this criteria to separate objects in the output export. (Classes will then show up as layers in the recieving end). VW 8.5.1 was very stable, but so is 10.5.1 and 11.0.1, and you get so much more, so why sit on it?
  13. I have run VW 11 on a 450 MHz G4 with OS 10.3, while my regular PC was down, and I had with very few speed issues. With VW 11 you can batch renderings and do them at night. Also I found that with very complex geometry, it helps to turn the objects into symbols. For some reason symbols update faster on the screen, when they are moved around. After a period of transition, I believe you will bless the decission to switch to VW as one of the best, you have made.
  14. Are you trying to map a symbol? It has to be done on the extrude-level, not on the symbol-level. If not, try to choose the extrude, and then apply the texture directly from the render-tap on the object info palette. If this fails as well, try changing the extrudes into solid objects - for instance by adding them together or making a duplicate and add it to the original - and then apply the texture to the solid.
  15. I have. If you can accept very long rendering times, the way to do this is to make a very large sphere, that encompasses the entire scene, and place it in the center of the working space. Then make an imagemap about 3,14 times wider than it is high. Turn off shadowcasting and -recieving, and make reflection constant. Map it ono the sphere using the cylinder mapping option, and scale it so the map is the same height as the sphere. Make and crop the perspective view, that you want. Then draw a 2D rectangle around the croplines and turn it into a 3D polygon. Go to side and top views and place and scale this rectangle, so it is well behind the scene, you want to render ? but inside the sphere, and so that the edges of this 3d polygon do not show up in the perspective view. Give this 3D polygon a white texture with constant reflection and no shadowcasting/-recieving. This 3D polygon only has the function of providing a neutral, white background in the final output. Then render the view. The result can be extremely satisfying, but it takes eons to render. I have requested the ability to use reflection maps as a supplement to render background in the wish list. Hopefully it will be included in the next version.
  16. PS: You may want to use a simplified model some of the time, so that you do not have to wait for the model to update.
  17. Oh by the way - keep the 2D perspective lines as guides when you are fiddling with the view.
  18. First I import the photo as a backdrop. Scale it to the page and place it in the exact center. Then I trace lines of objects in the photo, that are parallel to the front and sides of the 3D building, and join these lines into vanishing points. Then I try to establish the true height of a corner of the building by comparing with an object in the photo of known height ? again using the lines from the vanishing points. Then - alas - I fiddle a lot with the 'Set perspective', the 'Flyover tool', the 'Translate view tool' and (very carefully) with the 'Rotate view tool' using the photo as a backdrop. Be sure to place the corner handles of the perspective window exactly over the corners of the imported photo, that you are using as a backdrop. Sooner or later, I always get it just right. (Save view regularly!) I then render and export to the excact same pixel size as the photo used as backdrop. Copy and paste the resulting rendering onto the photo in photoshop and delete the white background. And Bingo! ? the rest is easy. I tried other ways, but none are as reliable, so good luck.
  19. I'm not sure, but it has happened to me. If there is an open arc within the sweep, then close it by the compose comand or by closing the shape in the object info palette. If the trim plane coincides with a surface or a point in the sweep, then extend the 2D part of that sweep, so that it does not - if possible. And finally try rotating the sweep within the solid 90?, 180? or 270? from the top view.
  20. It disaappoints me, that renderworks backgrounds do not show up in the reflections of rendered objects. In an ancient version of Studiopro, I could load a background image as well as an image for reflections. A single image for both purposes would suffice. The workaround is to map an image onto a big sphere, that surrounds all the objects meant for rendering, but it would be nice if I did not have to.
  21. As soon as the nurbs curves become complex, lofting them can be extremely frustrating. I have had the same problems and found no ideal solution. I think you should consider doing the flanges and the smooth parts in separate operations. Or - if it is possible to mirror the object along some axis - cut the shapes in half. That way you will get more reliable alignment points.
  22. Lofting eith rail has shortcommings. I think that lofting with no rail should do the job. If it doesn't look quite right, you can try redoing the loft by using the 'create contours tool' ? and edit/change the contours, that are off. Or you can try doing most of the shape as one big nurbs surface: Create the basic nurbs surface in a very simplified form with as few vertices as possible, then move, edit and add vertices until it looks right. I have done the hull of a sailing boat with just 12 vertices in all.
  23. Hugo, I work on files up to 80 mb ? usually without much trouble. But I have experienced similar slowdowns. Usually I can fix it by converting a number of objects or object groups into symbols. For rasons unknown to me, updating symbols seems to run much faster than the very same geometry placed as groups or basic objects in the work-space.
  24. In older versions of Vectorworks 'Set 3D view* used to to just that ? when in 3D views. Why it was changed, I do not know. I think it is due to a programing error. You can still use the tool, but you have to specify the heights of the first and second click of the mouse.
  25. What type of path object are you using?
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