how to get stuff done with python in blender. step by step.
One easy way to get started is to
bpymodule, a module you'll import at the top of your
.pyscript file, but which is already available to you in the python shell. Try typing in the following into the python console:
bpy.ops.mesh.primitive_cube_add(). You should see a cube appear. Now change the x or y value of the cube in the "object" tab of the properties inspector. When you change the value you should see some output in the info tab, something like
bpy.context.object.scale = 7.09693. This is what's happening "under the hood" when you change properties in blender. What's cool is that you can simply copy this command, paste it into the python console, and use it as a template to manipulate your cube. Try changing the numerical value after the
=sign. You should be able to change your cube's size with code. Try changing the
to try to figure out what that's doing too.
import bpy print("starting up my script") bpy.ops.mesh.primitive_cube_add(size=1) bpy.context.object.scale = 5 bpy.context.object.location = .5 bpy.ops.mesh.primitive_plane_add(size=10) print("you should now have a 5x1x1 cube resting on a 10x10 plane")
If you now hit run, you should see just what that print statement suggests you'll see.
7. But where does the print statement itself show up? And where does error log happening if (as is inevitable) I accidentally mistype something? Right now, nowhere. To see the output, I actually need to run blender from a shell. So close Blender and open up Terminal, and enter the path to your Blender executable, which is probably
/Applications/Blender.app/Contents/MacOS/blender. Hit enter, and you should open up Blender. If you now enter and run the script above, you should see the print statements (and, ultimately, any error messages) in your terminal.