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difference between seperate xyz and combine xyz?

In this instance you're using it to define a z-component but leaving the other two values at 0. This works because the output of Combine XYZ is a vector (purple socket) which matches the rotation ...
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2 votes
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principled volume does not accept my black color

Black doesn't reflect as much light as white, so the problem is the black seems to disappear inbetween the bright smoke, especially when the smoke isn't very thick and not absorbing so much light. To ...
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4 votes
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Making complex-shape volumetrics

answer for version 3.3 alpha (and sorry, yes, i nearly always work with the newest alpha version): Make a curve (like a 8 or whatever), add the GN node tree: result:
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1 vote

Blocky fire in rendered view

Setting the Mix RGB node to Multiply will fix your problem. Hope this helps!
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  • 11
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Using Proximity from Curve to control Volume Shader in Cube

Short answer: There is no geometry (no points, no edges, no faces) inside the cube, so there is nothing for the Geometry Proximity node to reference when calculating Distance values from the points on ...
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