I want to render a 4000x5000 picture.

I used a one-tiled (4000x5000 px) test render, with 20% resolution-scaling for a test over night.

But now no matter what tilesize i set.

No matter the resolution scaling.

It won't go back to multiple tiles.

Switching between CPU and GPU and using both auto-tile and manual settings, didnt work.

  • $\begingroup$ add a screenshot of render settings $\endgroup$ – Crantisz May 8 '18 at 6:13
  • 3
    $\begingroup$ Sounds pretty tileable ;) What's your question? Suggest to enable Auto Tile Size Addon, output as OpenEXR file, disable Progressive Refine and enable Save Buffers for such image dimensions. There no reason to render the image in one big chunk... $\endgroup$ – brockmann May 8 '18 at 7:52
  • $\begingroup$ I really appreciate your suggestions. Disable Progressive Refine and enable Save Buffers was the solution. But sometimes it seems, every question without a screenshot isn't worthy ob beeing read fully. "using both auto-tile and manual settings, didnt work." Your first suggestion: "Auto Tile Size Addon". Nice thank you.Also rendering an image in one big chunk is a comon technique if you dont know how long you can render, but still want a full image, without tiles missing, when you come back to it. $\endgroup$ – Jens Clar May 8 '18 at 14:27
  • $\begingroup$ There is no reason and that's not any common technique @JensClar. Progressive refine is for preview purposes in combination with the Render Border (waiting until you get enough samples for a small section of the image) in order to render the final image in tiles, especially when it comes to big images. Also notice that each finished tile can directly saved to the EXR file and the rendering is probably faster in general. Anyway, glad I could help. Related: blender.stackexchange.com/q/3120/31447 $\endgroup$ – brockmann May 8 '18 at 18:31
  • $\begingroup$ related: blender.stackexchange.com/questions/51888/… and blender.stackexchange.com/questions/6329/… $\endgroup$ – user1853 May 9 '18 at 4:39

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