cs_pix

cs_pix

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Volume Convolution: VEX & C++ vs OpenCL Jan. 18, 2018, 6:53 p.m.

animatrix3d
Things like point clouds, ray intersections, matrices are not available out of the box.

Hi,

Yeah that's what I'm faced with right now. I want to compute ambient occlusion on a landscape geometry but can't figure out how to find if a ray, out from a point, intersects with some polygon on the geometry.

Do you have any good reference for this anywhere? All the code I found so far is about raytracing a scene in OpenCL.

I have to vectors for origin and direction but how do I check if they intersect with a polygon (or Volume) on the geometry?

Thx.
Christian

Can you point instances at already existing Unreal Assets? Jan. 9, 2018, 7:44 p.m.

Thx DASD,

Turns out I didnt't need the pack node and it was breaking things (most probably I don't know how to use it). The Copy Reference worked perfectly.

Cheers!
C

Can you point instances at already existing Unreal Assets? Jan. 8, 2018, 9:18 p.m.

Hi,

Does any one has an example HDA they could share on how to instance object into Unreal from Houdini?

The documentation here : http://www.sidefx.com/docs/unreal/_instancing.html [www.sidefx.com]

It refers to using packed primitives but I still can't figure out how it connects to Unreal.

I have an attribute on my points called unreal_instance but what path should I give it? /Content/… or Content/… ???
Is it case sensitive? Do I need to use the Transfer Attributes parameter on the Pack node at all?

Any info or an actual HDA that works would be useful.

Thx!
Christian