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Tue, Sep 2, 2008 at 6:45:58 AM | Shadow Artifacts in Elevation

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psymon


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We have to produce elevational studies of the building facades for the winter solstice.

Because there are buildings behind the view that will  cast shadows I have to use an orthographic camer a view, or else they will not cast shadows.

However when I look at the elevations there are artifacts in the shadows: areas where the shadow is "pixelated". These are not shadows cast by objects. (see attached image)

If I look at the same model in say an axonometric view, these artifacts do not appear.

Anyone have any idea how to get around these happening? I have tried everything.



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Thu, Sep 4, 2008 at 8:37:55 PM | Shadow Artifacts in Elevation

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cganiere


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Which Revit version?

Which quality setting are you using for the rendering?


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Thu, Sep 4, 2008 at 8:52:25 PM | Shadow Artifacts in Elevation

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Typhoon


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Rendering? isn't that image a Elevation view with shadows on?

 


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Thu, Sep 4, 2008 at 11:34:11 PM | Shadow Artifacts in Elevation

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This is Revit 2009 - latest build.

These are camera views (with  the perspective box unticked) ans shadows on.

I think the  geometry is just to complex and it does like it when the sun is almost incident to the building face: These are western views from about 12:00pm to 4:15pm. (In the Southern Hemisphere)

It is extreemly irritating as I need to show elevational views of the entire site which has about 15 elevations. The only way I can get it to work is if I do Serial 3d's (axonometric)


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Tue, Aug 18, 2009 at 6:24:10 AM | Shadow Artifacts in Elevation

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jacobischwartz


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I have also had problems with this issue, and I'm only working on single houses. Setting the complexity to various levels makes no difference, and it occurs even when the shadow angle is not close to incidence on the wall.

I'm using Revit 2010, latest updates etc.

Is anyone else still having this issue? Has anyone found a solution?


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Tue, Aug 18, 2009 at 1:19:47 PM | Shadow Artifacts in Elevation

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cganiere


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Some materials are more prone to artifacts than others. Have you tried rendering the sceen with different materials?

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Tue, Aug 18, 2009 at 11:28:12 PM | Shadow Artifacts in Elevation

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jacobischwartz


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Yeah, just went through half my material pallette and painted each on the surface showing artifacts... No luck.

 

BTW - I'm not rendering in the raytrace and lighting sense, this is just a regular shading in perspective view. Shifting the view minutely makes the artifacts spasm all over the place. 


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Wed, Aug 19, 2009 at 1:59:26 PM | Shadow Artifacts in Elevation

#8

cganiere


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Try exporting the image & printing to PDF. Open the files on another computer. It may be your display.

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