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In the Smoke Flow panel there is a section called Smoke Flow Advanced. In this section you can find mapping fields (Size, Offset). Could you explain the nature of these fields and how they impact the fire?

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These are mapping adjustments for the emission texture (specified just above them in the panel). Size adjust the scale of the texture coordinates, offset translates the coordinates. Depending on your texture, you may find it useful to animate these to give your flame a more realistic patchy/"licking" appearance.

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  • $\begingroup$ So size tells how big or small the "elements" of the noise texture are ? I say elements but I am not sure how to call them. Would Size have an impact on how big or small the flames are ? $\endgroup$
    – user13877
    Dec 8, 2016 at 16:43
  • $\begingroup$ About Offset ... you say "translates the coordinates". Could you explain which coordinates ? the x,y or z-coordinates ? does Offset have an impact on the hight of the flames ? $\endgroup$
    – user13877
    Dec 8, 2016 at 16:45
  • $\begingroup$ I am very interested in using these fields for animation ... would that mean give these fields some very random values so that you get a nice patchy/flickering fire ? $\endgroup$
    – user13877
    Dec 8, 2016 at 16:47
  • $\begingroup$ They do not affect the volume, so they are not "fields" per se. They affect where on the emitter the flames are released from. The texture itself supplies the patchy look (using a noise texture like Clouds works well). Size/offset functions just like, say, the mapping node in Cycles. It just moves the texture around the surface. $\endgroup$
    – JtheNinja
    Dec 8, 2016 at 16:59
  • $\begingroup$ I think I understand Size but Offset remains a bit vague for me. Blender says that Offset is "Z-offset of texture mapping". What Z-offset ? $\endgroup$
    – user13877
    Dec 8, 2016 at 17:13

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