Jon Parker

jpparkeramnh

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Recent Forum Posts

IOR vs Reflectivity ? Transparency vs Opacity? 2020年3月3日11:07

The way I see opacity, is that it is a rendering shortcut for materials that are assumed to have holes in them that are too small too see. The amount of opacity is inverse to the porousness of the surface / volume.

Gradient Fall-off Volume 2020年2月26日12:04

tapoh
thanks! and how this can be achieved along all three axes x,y,z?

Without testing, probably like:
@density = 1 - length(relbbox(@P));

Fastest way to write data out of node? 2020年2月11日10:50

I assume you need the individual curves to be known… otherwise you can grab an entire attribute efficiently using functions like this one:

http://www.sidefx.com/docs/houdini/hom/hou/Geometry.html#pointFloatAttribValuesAsString [www.sidefx.com]