ERROR : RCMP 0.4 error: cannot open temporary map file “mrmap0_tmp.a08740” for writing


This is an issue that we recently discovered. When final gathering is enabled, mental ray writes temporary files (such as mrmap0_tmp.a08740) to the Softimage installation folder:

C:\Program Files\Autodesk\Softimage 2012\Application\bin

To workaround this issue, either Run As Administrator (on Vista and Windows 7), or make sure that XSI.exe and xsibatch.exe have write permissions in the Application\bin folder.

In Maya 2012, the file is written in a project folder.
C:\Users\stseve\Documents\maya\projects\default\renderData\mentalray\mrmap1_tmp.a04936

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s