OP­TI­MIS­ING THE HAIR IN THE VIEW­PORT PRE­VIEW

3D Artist - - THE PIPELINE -

in or­der to pre­view/play­blast an­i­ma­tion faster while work­ing on set­ting cor­rect val­ues for the noise, you can tem­po­rar­ily delete a part of the hair geo. To do that, i cre­ated a point node with as­signed at­tribute pa­ram­e­ter to the colour with ran­dom val­ues, by us­ing the rand(@el­em­num) ex­pres­sion. The next step is to cre­ate a delete node, with op­er­a­tion set to – delete by ex­pres­sion. in the ex­pres­sion ‘rand(@cd) > .05’: @cd stands for colour, and > .05 means delete every­thing that has colour value bigger than 0.05.

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