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Please, how to improve darkness in this PLY: http://156.54.99.175/3d/sodark.zip ? It is too dark! What's the issue?

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  • $\begingroup$ shouldn't this be merged with this question: blender.stackexchange.com/questions/38577/… -- it's the same problem, but OP isn't using Cycles.. $\endgroup$ – zeffii Sep 16 '15 at 11:11
  • $\begingroup$ @zeffii I think you have posted the comment in the wrong question $\endgroup$ – Carlo Sep 16 '15 at 12:31
  • $\begingroup$ I don't care which is merged into which, but chronologically -- perhaps the other question should merge into this one.. $\endgroup$ – zeffii Sep 16 '15 at 14:14
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I think that there is not a Blender-related issue: the vertex colors are the ones the file provide.

Here's what they look like in Meshlab:

enter image description here

And in Blender:

enter image description here

put apart the different viewport shading by seeing the true solid colours in cycles preview or textured mode in blender render, and you'll see no difference:

enter image description here

enter image description here


You can tweak the vertex colors with nodes as liked:

enter image description here

Note that vertex colors are changed only in the viewport, for rendering purpose, not in the vertex color layer. If you want to store a new, brighter, vertex layer you should:

  • bake cycles tweaked vertex color to an image texture
  • convert the texture to a new vertex color layer
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  • $\begingroup$ so, no other way to set up colors? $\endgroup$ – sborfedor Sep 15 '15 at 13:45
  • $\begingroup$ What are the steps to brighten the colors? Can you be more specific? $\endgroup$ – sborfedor Sep 15 '15 at 15:34
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    $\begingroup$ The step to brighten the color is just one: add a RGB Curve node (or a Brightness&Contrast node, or ecc...) and tweak its parameters (ex. last picture). Is this what it was not clear? $\endgroup$ – Carlo Sep 15 '15 at 16:50
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    $\begingroup$ You can also use vertex paint mode, but I don't think you'll easily get a good result. This is the way I know, but maybe someone else has a better idea. $\endgroup$ – Carlo Sep 15 '15 at 16:53
  • $\begingroup$ Thanks @Carlo, your answer is appreciated. How I can add a RGB Curve node in Blender? Step by step... if you can. $\endgroup$ – sborfedor Sep 16 '15 at 7:01

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