Update cheatsheets

blender

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# blender
+
+> Command-line interface to the Blender 3D computer graphics application.
+> Arguments are executed in the order they are given.
+> More information: <https://docs.blender.org/manual/en/latest/advanced/command_line/arguments.html>.
+
+- Render all frames of an animation in the background, without loading the UI (output is saved to `/tmp`):
+
+`blender --background {{path/to/file.blend}} --render-anim`
+
+- Render an animation using a specific image naming pattern, in a path relative (`//`) to the .blend file:
+
+`blender --background {{path/to/file.blend}} --render-output //{{render/frame_###.png}} --render-anim`
+
+- Render the 10th frame of an animation as a single image, saved to an existing directory (absolute path):
+
+`blender --background {{path/to/file.blend}} --render-output {{/path/to/output_directory}} --render-frame {{10}}`
+
+- Render the second last frame in an animation as a JPEG image, saved to an existing directory (relative path):
+
+`blender --background {{path/to/file.blend}} --render-output //{{output_directory}} --render-frame {{JPEG}} --render-frame {{-2}}`
+
+- Render the animation of a specific scene, starting at frame 10 and ending at frame 500:
+
+`blender --background {{path/to/file.blend}} --scene {{scene_name}} --frame-start {{10}} --frame-end {{500}} --render-anim`
+
+- Render an animation at a specific resolution, by passing a Python expression:
+
+`blender --background {{path/to/file.blend}} --python-expr '{{import bpy; bpy.data.scenes[0].render.resolution_percentage = 25}}' --render-anim`
+
+- Start an interactive Blender session in the terminal with a Python console (do `import bpy` after starting):
+
+`blender --background --python-console`