CAD tip # 8597:

Question

CAD
% platform category

Flashing, patchy appearance of Revit 3D models in Showcase.

When you read in Revit 3D scenes into Autodesk Showcase (using FBX) and navigate through the rendered scene, some objects may appear as "flashing", intermittently displaying different (black) materials and surface tesselation lines.

There are three possible sources of this problem:

Graphics card - Showcase uses a lot of graphics power, any incompatibilities may cause display problems; check and update your gr.card Windows driver
Non-unified normals - some faces are imported as back-faces (reverse), facing away from camera; you need to unify faces to "look" at camera - use Edit > Always Face Surface Normals to Camera in Showcase
Overlapping faces - rounding errors can make overlapping faces "flash"; two different surfaces at the same geometric location (e.g. terrain and asphalt road) may display as alternating faces depending on your current view vector; there is no easy fix for this - try to slightly elevate the "upper" surface in Z-axis

Similar problems can appear also in 3ds Max - also use there "Unify normals" to normalize 3D models imported via FBX format from Revit, AutoCAD or other CAD applications.

RevitShowcaseMax

* CAD

20.4.2012 9644×

Comments Tell a friend

Prices - CAD eShop:

Revit

3ds Max

AEC Collection

applies to: Revit · Showcase · 3ds Max ·

See also:
Tip 9817:	Output from Autodesk Showcase as a mosaic on multiple monitors.
Tip 9735:	How to convert a .THING file to a 3D CAD model?
Tip 9719:	Animating constraints in Showcase: AdWorkflowHost is unknown.
Tip 9654:	CAD formats supported in online viewer under Autodesk 360.
Tip 9549:	Rendering of 3D models without background in Autodesk Showcase.

Selected tip: How to uninstall AutoCAD?

Back All CAD Tips

Use BCount (Express Tools) with dynamic blocks. « | » Cannot run program - 3d3dx9_43.dll is missing

Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above). You may also add a link to your web - like this "fan" link:

CAD: OS: Categ:
Text:	FAQ glossary

Featuring:
Increase your productivity with our set of add-on functions for AutoCAD Civil 3D
CADstudio Civil Tools More info

Please use these tips at your own risk.
Arkance Systems is not responsible for possible problems that may occur as a result of using any of these tips.

	CAD Forum - tips, tricks, utilities, help, how-tos and FAQ for AutoCAD, LT, Inventor, Revit, Map, Civil 3D, Fusion 360, Forma, 3ds Max and other Autodesk software (support by Arkance Systems) - see About	Arkance Systems CZ s.r.o. (CAD Studio) - Autodesk Platinum Partner & Training Center & Consulting Services Partner	CONTACT: webmaster.cz@arkance-systems.com tel. +420 910 970 111
	Copyright © 2023 \| Advertise with us \| Online privacy

CZ \| EN \| DE
Login or
registration
	Visitors: 9833