System Information
Windows 10 64bit
Intel HD Graphics
Blender Version
Broken: 2.75a c27589e
Strange artifacts appeared on the final render and the image seems chopped.
Example:
To reproduce the problem, simply render a scene with BI, preferably with a relatively complex mesh (Like Suzanne).
You are using a panoramic camera.
In 2.6 manual, it is mentionned as a Cycles only feature. It is shown in BI interface because of a shared UI template.
But in fact, it also corresponds to an old and complicated BI feature.
http://wiki.blender.org/index.php/Doc:2.4/Manual/Render/Panoramic
So, you have to use it as in attached.blend.
But its complicated workflow with lots of limitations and change of Xparts to X Tiles conducts to numerous bugreports.
So, it is recommended to use Cycles if you want to make a panoramic render.
That's partially incorrect reply from @ronan ducluzeau (zeauro). You can totally use blender internal's panoramic rendering with the only difference from Cycle is that then you'll need to use small X tile size because of specific of how panoramic rendering works in Blender Internal. This is actually mentioned in all blender's panoramic tutorials and official manual.
So thanks for the report, but it's not really a bug. Just set X tile size to something like 8 and be happy.
I don't think there is a lot of blender's panoramic tutorials and it is not mentionned into official manual.
https://www.blender.org/manual/render/camera/lens.html#panoramic