cutouts aren't working in GLTF

[seveibar]

• Reproduce issue (prove that you reproduced with a PR image)
• Fix cutouts not working in GLTF export

/bounty $50

[algora-pbc]

💎 $50 bounty • tscircuit

Steps to solve:

1. Start working: Comment /attempt #64 with your implementation plan
2. Submit work: Create a pull request including /claim #64 in the PR body to claim the bounty
3. Receive payment: 100% of the bounty is received 2-5 days post-reward. Make sure you are eligible for payouts

❗ Important guidelines:

• Join our discord to get support from other contributors
• Links: tscircuit docs · tscircuit playground
• To claim a bounty for UI, you need to provide a short demo video of your changes in your pull request
• Do not ask to be assigned unless you've contributed before

Thank you for contributing to tscircuit/circuit-json-to-gltf!

Attempt	Started (UTC)	Solution	Actions
🟢 @techmannih	Oct 26, 2025, 02:57:19 AM	#65	Reward