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I am trying to add a bumpiness to a texture on a sphere, but when rendering at close zoomed in proximities, it looks pixelated/blocky.

I've tried modifying the subdivision of the sphere to 6 (render), tried smoothing faces/recaculating normals, etc - but no matter what I do, it still gives me this 'blocky' look. I've tried using an input texture into the bump node, as well as simply using the bump node itself, but still get the same thing.

Any idea on how to fix this? Here is an image: enter image description here

Any idea how to fix that? Also - I am using a couple different light sources. Thanks!

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    $\begingroup$ This looks like tiling artifacts from the JPEG compression - is it a JPG you're using, rather than, say, a PNG? Can you provide your bump input texture? $\endgroup$ – Rich Sedman Jan 10 at 16:14
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First thing is you have your image texture set to 'color', that should be 'non color' data. plus looking at your image it looks too low res, you need a 16bit image to make good bump maps.

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    $\begingroup$ hi, the image is zoomed in (because I use the camera to zoom in) - when I get 'up & close' it does this. I was actually using a bump map of 2000x2000 pixels. Setting it to non color doesn't really help, it does the same thing. Any other ideas? Thanks! $\endgroup$ – user6262902 Mar 3 '18 at 2:21

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