Jason Iversen


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Recent Forum Posts

mix shader in karma it's possibile? July 23, 2022, 8:41 p.m.

Is it a basic feature though? It's not even important or necessary the vast majority of the time. What defines material complexity is number of bsdfs, and the standard surface has plenty of those. Layering effects can be done on the input side and get almost the same result as layering on the bsdf side. I know some artists like to treat everything like layers, but it's a lot less efficient to build a shader that way.

It depends on your authoring strategy. Some companies (like ours) prefer to carry large templates of layered materials, which is done for long-term durability and maintenance convenience, along with a strong hint of legacy. Sure, there are other ways to do it, sometimes with the goal of being more efficient for the renderer, or for rapid authoring using tools like Substance/etc for example. The latter approach is probably more common in modern or smaller-scale pipelines - which is just a guess of mine, really. Either way, I expect SideFX might address layer mixing in short shrift if you make your voice heard... which you now have

Karma XPU Textures - Color Model Not Supported May 5, 2022, 6:28 a.m.

While many formats might work with Karma, it's wise to convert them to mip-mapped EXR (or RAT) format images: https://www.sidefx.com/docs/houdini19.5/ref/utils/imaketx.html [www.sidefx.com]

As for color space, perhaps you could post the results of iinfohere?

is houdini now using weta digital's proprietary solvers? March 16, 2022, 4:13 p.m.

... and only at Weta, yes