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Maniphest T39154

Corruption (black artifacts and circles) in Cycles
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Description

System Information
All vendors

Blender Version
Broken: 2.70 RC1

Short description of error
Some areas of the default scene gives black artifacts

Exact steps for others to reproduce the error
Attached scene (Default scene with 2 scaled cubes), move the cubes a bit, the artifacts change/disappear.

Event Timeline

• matali (mattali) created this task.Mar 13 2014, 1:13 PM
• matali (mattali) raised the priority of this task from to 90.
• matali (mattali) updated the task description. (Show Details)
• matali (mattali) added a project: BF Blender.
• matali (mattali) edited a custom field.
• matali (mattali) added a subscriber: • matali (mattali).

bug_black_cycles.blend87 KBDownload
Attached file

• matali (mattali) added a comment.Mar 13 2014, 1:16 PM

For the circles, they are hard to see. (couldn't reproduce on the report file) It appear with IES lights in exr mode. Many concentric circles. Sorry it's very hard to reproduce and the original file is 500MB big.

Brecht Van Lommel (brecht) changed the task status from Unknown Status to Unknown Status.Mar 13 2014, 2:02 PM
Brecht Van Lommel (brecht) claimed this task.

These are known precision issues on the to do list, move the cubes a bit to work around it.