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Why does validation fail when uploading my drawing?
- Make sure that you are using an AutoCAD drawing file (DWG) or an eTransmit ZIP file saved directly from AutoCAD 2010 or later.
- Make sure that your file contains 3D solids or surfaces. The service cannot render 2D geometry or paper space views.
- Autodesk recommends that your file contains at least one camera view.
How can I improve the appearance of rendered images?
- Try increasing the Render Quality value.
- Try adjusting the lighting in AutoCAD.
- Make sure that you include any xrefs or custom materials by creating an eTransmit archive.
Why doesn't the rendering update or respond?
- The source file may be too complex. Try using a lower Render Quality or smaller Image Size value.
Why does my image fail to render?
- Check your lighting settings in AutoCAD. For example, a spot light could be pointing in the wrong direction.
- Try saving and uploading the drawing again.
Why aren't some settings and RPC (Rich Photorealistic Content) objects in the rendering?
- Fog is not supported.
- Text and MText are not supported. Convert them to a mesh object before rendering.
- Standard lights (lightingunits=0) and distant lights are not supported; they are converted to Photometric lights.
- Default lights are not exported. If no explicit lights are in the scene, the rendering shows only the nonilluminated diffuse color of the objects.
- Shadow settings are ignored. Shadows are always ray traced.
- Background overrides (solid/gradient/image, sun/sky) are not supported.
What are the differences between renderings using Autodesk® Rendering and AutoCAD renderings?
- Generally, these renderings should be similar. Differences might be apparent when using an older AutoCAD file that was automatically updated in a newer version of AutoCAD.
- In some cases, the scale of your texture might be different from the AutoCAD renderings. Ensure that the Conversion unit in the Units dialog box is not set to Unitless.