I am trying to create a model for unity 3D.

To my knowledge blender - Normal map is only going to smoothen the edges

Now how the height details are passed? What kind of texture is required?

I have a high poly model and low poly model, is there a way to do it?

enter image description here

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    $\begingroup$ are you on cycles or blender render $\endgroup$ – Grimlock Jan 11 at 10:27
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    $\begingroup$ @Grimlock hi i am on blender cycles $\endgroup$ – Latheesh V M Villa Jan 11 at 10:27

I am not too sure about Unity, but in blender the usual way to go from highpoly models to lowpoly models is to create a normal map from the highpoly and apply it to the lowpoly. To do this see here: https://www.youtube.com/watch?v=BOYRCI-dtjU

Hope it helps :)

  • $\begingroup$ the level of detail which is transferred with the normal map is less. It does not transfer height info..only details of how light should reflect is transferred. I am missing something...details marked with green arrows are not from normal map $\endgroup$ – Latheesh V M Villa Jan 11 at 11:03
  • $\begingroup$ oh I see what you mean now. One sec $\endgroup$ – Grimlock Jan 11 at 20:51
  • $\begingroup$ Sorry for the delay, but what you're looking for is displacement maps. Here's a video on how to do this: youtube.com/watch?v=l1ASzhU9O-A however, it is specifically for sculpting, but you may be able to use the same methods in your model $\endgroup$ – Grimlock Jan 12 at 5:08
  • $\begingroup$ Yeah, but it is the answer but is computationally more expensive. It is better to keep the normal map details height in 0.9x thickness. As far as i know $\endgroup$ – Latheesh V M Villa Jan 12 at 5:58
  • $\begingroup$ I never thought of computational performance (cause I have quite a strong GPU and CPU combination). Thanks for letting me know though, I'll keep that in mind next time :) $\endgroup$ – Grimlock Jan 12 at 7:10

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