https://forums.autodesk.com/t5/maya-shading-lighting-and/solidfractal-usage-and-settings/m-p/8427922#M11844 <P><SPAN>Apologies if this ends up double posting. I posted it once and it seemed to disappear so I'm trying again.</SPAN></P> <P>&nbsp;</P> <P><SPAN>I’ve run across several solidFractals in scenes here at work that have what I’d call ‘excessive’ settings. There’s one floating around with a frequency ratio of 20 and a ratio of 18.</SPAN><BR /><BR /><SPAN>Based on my understanding this means that each successive layer/iteration of noise is 20 times smaller and contributes 18 times more to the final result than the previous layer, making the final layer very small and with a huge impact on the noise values. Mercifully the depth is only set to 3.</SPAN><BR /><BR /><SPAN>So my initial questions are: do these values seem out of whack? Is there a meaningful difference if we produce a similar result by scaling the placement node to 0.0025 (1/(20x20)) and increase the amplitude to 324 (18x18)? This amplitude value still seems a bit wild to me, so it raises a couple more questions: why do you think someone would use these values? And most importantly, are you using solidFractal or do you have another preferred method of adding high frequency noise in a bump channel?</SPAN><BR /><BR /><SPAN>We tend to use VRay for most renders but we’re transitioning some work to Redshift and I’m currently testing Arnold. They all render solidFractal a bit differently but I can get them to be visually similar if I divide the scale of the VRay placement node and the VRay solidFractal amplitude by 2.</SPAN><BR /><BR /><SPAN>Is solidFractal worth it or should we be transitioning to triplanar texturing for our high frequency noise bumps?</SPAN></P> Tue, 27 Nov 2018 17:39:50 GMT Anonymous 2018-11-27T17:39:50Z https://forums.autodesk.com/t5/maya-shading-lighting-and/solidfractal-usage-and-settings/m-p/8427922#M11844 <P><SPAN>Apologies if this ends up double posting. I posted it once and it seemed to disappear so I'm trying again.</SPAN></P> <P>&nbsp;</P> <P><SPAN>I’ve run across several solidFractals in scenes here at work that have what I’d call ‘excessive’ settings. There’s one floating around with a frequency ratio of 20 and a ratio of 18.</SPAN><BR /><BR /><SPAN>Based on my understanding this means that each successive layer/iteration of noise is 20 times smaller and contributes 18 times more to the final result than the previous layer, making the final layer very small and with a huge impact on the noise values. Mercifully the depth is only set to 3.</SPAN><BR /><BR /><SPAN>So my initial questions are: do these values seem out of whack? Is there a meaningful difference if we produce a similar result by scaling the placement node to 0.0025 (1/(20x20)) and increase the amplitude to 324 (18x18)? This amplitude value still seems a bit wild to me, so it raises a couple more questions: why do you think someone would use these values? And most importantly, are you using solidFractal or do you have another preferred method of adding high frequency noise in a bump channel?</SPAN><BR /><BR /><SPAN>We tend to use VRay for most renders but we’re transitioning some work to Redshift and I’m currently testing Arnold. They all render solidFractal a bit differently but I can get them to be visually similar if I divide the scale of the VRay placement node and the VRay solidFractal amplitude by 2.</SPAN><BR /><BR /><SPAN>Is solidFractal worth it or should we be transitioning to triplanar texturing for our high frequency noise bumps?</SPAN></P> Tue, 27 Nov 2018 17:39:50 GMT https://forums.autodesk.com/t5/maya-shading-lighting-and/solidfractal-usage-and-settings/m-p/8427922#M11844 Anonymous 2018-11-27T17:39:50Z