Render Notifications
Render Notifications
Render Notifications is a Blender Extension that sends alerts when rendering begins, after the first frame, and when the render job finishes or is cancelled. Notifications are triggered after each frame, since Blender does not currently expose real-time render progress to Python.
The extension estimates render duration and progress by calculating per-frame stats including:
- Time taken to render the current frame
- Average time per frame
- Estimated total render time
- Frames remaining and overall progress
Note: Blender updated to python
3.13, so Version1.2.3is not compatible with blender 5.0 and lower. Use version1.2.2for older versions of blender.
Features
Desktop Notifications
Receive desktop popups when a render starts, finishes, is cancelled, or completes its first frame.
You can optionally enable custom notification sounds using .wav files.
Discord Webhooks
Send frame-by-frame updates to a private Discord channel while Blender renders in the background. Messages are posted at the start, updated after each frame, and finalized once rendering finishes or is cancelled.
Preview images rely on output being saved as
.png.Formats like.exrare not supported.
Webhook Support
Send structured JSON payloads to custom endpoints — ideal for Home Assistant, IFTTT, mobile dashboards, or other automation tools. Perfect for integrating real-time render notifications into your workflows.
Configuration
In Preferences:
- Desktop: Enable and optionally set a custom
.wavsound file - Discord: Set your webhook URL, customize the channel bot's name, and define a preview image save path.
- Note: Get the Discord webhook via your discord channel settings.
- The preview image save path can be set in both Preferences or Render Properties tab. If the path in Render Properties is invalid, the Preferences path will be used instead.
- Webhooks: Add any URL endpoint to receive JSON notifications after each frame.
- For examples of the JSON payload structure, please check the documentation website.
In Render Properties:
Toggle and customize notification settings directly in the Render Properties tab for Desktop, Discord, and Webhook integrations.
Sponsorship
If you find this extension helpful and want to support its development, you can buy me a coffee
What's New
1.3.0 April 27th, 2026
Changed
UI Changes:
- Addon is no longer at the top of the render properties and is now in it's own collapsible panel in the render properties
Added simple messages to third-party webhooks for chat applications that support webhooks, but can not modify the payload
- Simple messages can be customised in the addon preferences or in the addon panel. by default, it will use the addon preferences.
- You can attach some render data to the message
Removed discord webhook from third-party webhook payload
Total frames and ETA adjust to frame step in the blender scene
Does exactly what it says it does, cleanly and simply! Love the option for a custom sound notification, and the Discord reports are clean and information-dense. Well built!