by Yain Vieyra·Workflow
Illustrative cover generated by AnyPlugins — no product screenshot available.
Earns its place in the superhive library for solving a narrow but real annoyance: forgetting to shift render slots and losing a previous result. Automating that step keeps a render-comparison workflow tidy.
Shift Render Slot is a Blender addon from Yain Vieyra that automatically shifts render slots at any time while rendering images. It's built for taking multiple shots or running test renders and comparing the results, so new renders don't overwrite previous ones and you don't lose an image because you forgot to shift the slot manually.
The controls live in the UV/Image Editor, where you can enable or disable the shifting behavior without toggling the addon in User Preferences each time. You can trigger the shift on up to four render events — Before, After, Complete, and Cancelled — and choose an increasing or decreasing direction. Shortcuts let you move between slots directly: Alt + Up Arrow or Ctrl + Wheel Up for the next slot, Alt + Down Arrow or Ctrl + Wheel Down for the previous one.
The addon state links to the scene and saves with the .blend file, so reopening a project keeps the behavior you last used. When you reach the last slot, it jumps back to the first. The current version, 3.0.9, is updated for Blender 5.x.
Shift Render Slot is best for blender users doing test renders or multiple shots who want each render kept in its own slot without shifting manually.
Shift Render Slot is completely free to download and use.
Shift Render Slot version 3.0.9 is updated for Blender 5.x and the Blender 5.0 API, and its version log also covers releases for Blender 4.4.x, 4.2.x, and 4.0.0. Older notes reference behavior in Blender 2.79 and 2.8x, where slot handling differs — 2.79 provides eight built-in slots by default, while 2.8x lets you add more. For the version you plan to run, check the developer's page to confirm your exact Blender build is supported before installing.
Shift Render Slot provides shortcuts for moving between render slots inside the UV/Image Editor. Use Alt + Up Arrow or Ctrl + Wheel Up to go to the next slot, and Alt + Down Arrow or Ctrl + Wheel Down to go to the previous one. You can also enable or disable the shifting behavior directly in the UV/Image Editor, so you don't need to toggle the addon in User Preferences every time you want to change how it works.
Shift Render Slot lets you pick up to four render events to trigger a slot shift: Before the render job begins, After it ends, Complete when the render finishes, and Cancelled when the render is stopped. Alongside the events, you choose a direction — Increase to move to the next slot, or Decrease to move to the previous one. When it reaches the last slot, the shift wraps back around to the first slot automatically.
Shift Render Slot links its state to the scene and saves it with the .blend file. That means when you reopen a project later, the addon keeps the same shifting behavior you set the last time you worked on it, so you don't have to reconfigure the events, direction, or enabled state each session. This ties the setup to the specific project rather than a global preference, keeping each file's render-slot behavior with the file itself.
Shift Render Slot is listed as free in this catalog. For current licensing terms and any changes, check the developer's page. The addon runs inside Blender and its controls appear in the UV/Image Editor, where you manage the render events, shifting direction, and shortcuts. The latest version, 3.0.9, is updated for Blender 5.x, so download the build that matches your Blender version from the developer to make sure it works as described.
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