Depends on what you're animating. If you're walking a Lego figure, then yes you would have to model each frame. For something spinning however, if you place the camera just right, you can use the "Rotation: Enable steps" option on the second tab. For this animation, I enables rotation with 30 steps, but only used the first 15, as the others are duplicates. I loaded the PNG files into GIMP and used that to create the GIF. Also, I used GIMP to add the flashing light which was taken from a render of the very top of the model.
giphy.com/gifs/l0HlJTZiHjk3yPTXO
I love Bluerender msx80! I read up to page 5 of this topic, so might have missed something, but I have a couple of suggestions.
Is there a way of removing the shadow on the floor? For what I am using Br for at the moment, I don't want a shadow, so I am placing bricks underneath my models to remove the shadow from vision.
Also, I have read the comments about shrinking bricks etc, to increase the visibility of individual bricks. How about making the edge of each brick a slightly darker shade than normal?