3D model renders for Instagram, TikTok, X and LinkedIn posts

In short: drop in your model and the social post maker opens with the fresh Mint Fresh look in 4:5 portrait (1228 × 1536), the shape that takes up the most room in an Instagram feed. Switch to 9:16 for Stories, Reels and TikTok, or 1:1 for X, LinkedIn and Bluesky. With Pro, export the same shot as a looping 360° video.

3D artists grow audiences by posting consistently, but setting up lighting and renders for every post takes time. In Shot3D, pick a look once and every post matches, which helps your profile grid look like a portfolio.

#Sizes for each platform

Platform	Best shape	Set the aspect ratio to
Instagram feed	Portrait 4:5	Portrait 4:5
Instagram Stories and Reels, TikTok, YouTube Shorts	Vertical 9:16	Story 9:16
X, Bluesky, Threads	16:9 or square	Widescreen 16:9 or Square 1:1
LinkedIn, Facebook	Square or 4:5	Square 1:1
Pinterest	Tall 2:3; 9:16 also works	Story 9:16

Platforms resize uploads to fit, so a larger render (1536 px or more on the long edge) stays sharp on any phone.

#How to make a post

1. Open the social post maker. It opens with Mint Fresh in 4:5 portrait.
2. Drop in your model. GLB, FBX, OBJ, STL, PLY and 3MF all work, with textures.
3. Frame for a phone. Fill the frame. Vertical formats suit tall subjects, and wider subjects look better square.
4. Export → Thumbnail for an image post.
5. Make it move. With Pro, set 9:16 and choose Export → Turntable video for a seamless looping Reel or TikTok.

A real export from the post maker's settings

#Carousel ideas

• Beauty shot → clay → wireframe. Three slides with the same angle, using your look, Clay Render and Topology Wireframe. Artists love seeing the process.
• Every angle. Export the front, side, back and 3/4 views with keys 2, 3, 4 and 1.
• A whole collection. Export → Individual thumbnails gives a framed image of every model in a pack, ready for a carousel.

#Frequently asked questions

#Is it free?

Yes, for up to 10 exports a day with a free account (3 without one). The Free plan exports images up to 1,024 px with a small "Made with Shot3D" label. Pro (£10/month, or £1 for a 3-day trial with 25 exports) removes the label, goes up to 4,096 px and adds turntable videos.

#What size are the turntable videos?

Pro exports MP4s up to 1080p and Studio up to 4K, in any of the aspect ratios, at 24, 30 or 60 fps. A 9:16 video at 1080p is 1080 × 1920, exactly what Reels, TikTok and Shorts expect.

#Can I post these on ArtStation or Behance?

Yes. You own your exports. For portfolio sites, a 16:9 or square render at 2,048 px or more looks best.

#Are my models uploaded?

No. Everything renders in your browser and is saved to your device.