GlennHasABeard previews a Claude skill for vertical video cuts
GlennHasABeard demonstrates a Claude skill that turns horizontal footage into vertical cuts. The skill is not yet public, and multi-character handling and visible judders still need work.
TL;DR
- A custom Claude skill turns horizontal footage into subject-tracked vertical cuts, as demonstrated in GlennHasABeard's preview.
- It has already recut a portfolio reel, according to his reel post, and is editing his latest animation, he said in a follow-up.
- Public sharing is still ahead: his fresh-clip test identified multi-character handling to refine, while he reported judders in another edit.
A finished vertical cut is already posted alongside a Blender previs-versus-render comparison. Claude's custom skill format supports reusable instructions packaged with optional scripts and reference files.
Subject tracking
GlennHasABeard is giving Claude the fiddly second edit: he says the skill lets him track footage and convert it to vertical.
Portfolio reel and YouTube Shorts
The portfolio reel is an existing piece of work repurposed for another format. GlennHasABeard says he is already posting YouTube Shorts and plans to start on TikTok in 2027.
His latest animation is another editing job for the skill. After the latest vertical-cut job, he wrote that “a lot was learned” and that he was closer to making it public.
Multi-character footage and judders
GlennHasABeard followed the early preview with a test on a completely new clip. Two refinements remain in his own account:
- Multiple characters: He wants to tweak how the skill handles multi-character clips, he said in the test post.
- Judders: He caught “a few judders” in a subsequent edit and said he was still working through them in a reply.
Blender, Krea and local 4K renders
Asked about the Blender comparison, GlennHasABeard said he uses Claude for “the bulk of it” and is learning manual work for more control. He has also gained access to Krea 3 and says he is particularly impressed by its edit function.
Two other effects experiments document a separate generation workflow. Both posts specify 15-second clips with locked cameras and this finishing chain:
- Render locally in ComfyUI.
- Take the result to 4K with Topaz.
The prompts describe transformations with specific motion constraints:
- Web into lace: He used “the web itself turns into fine white lace right where it hangs” for the duster clip. Early takes dropped new lace from the ceiling; the revised result changes the web in place before the duster collects it.
- Ink into ribbon: He used “the line peels up off the page as a thin black ribbon” for the quill clip. The ribbon exits in the same direction as the quill, maintaining one direction throughout.