crisp edges - hard normals ...with unique points ?

[nmn]

how to harden the normals on polygons to obtain crisp edges without obtaining unique points ...

the equivalent of maya soften and harden edges, because in maya you can harden the edges then continue editing the vertices of your object as usual,

in houdini editing the vertices, well ... becomes difficult with 3 or more vertices on each corner)

the only two ways i know of are the cusp and the facet nodes and both of them make unique points

Thanks for your help

Regards

Ah sryy seems i did it again , i think i should've posted it in the modeling section ...

Edited April 23, 2009 by nmn

[stu]

Another way to make crisp edges is to render the surface as a subdivision surface and turn the crease weights up on the edges that you want to remain sharp.

[stevenong]

Hi,

Since H9, Mantra supports vertex normals so you can check out this thread where I attribute promote point normals to vertex normals and the shading is what you expect.

Cheers!

steven

[nmn]

thanks for your answers,

stevenong you method of transfering N was very simple and it does the job quite well thanks for that

though when i played with your file some other questions popped up in my head :

- why there is point and vertex texture i mean in a texture sop why would one want to use point texture, i thought its always vertex we work with, what are the differences and the pros cons, coz i saw that each give different results in some cases but in all ...

- i thought naturally the normals should be on the vertices, so how come it's only since v9 they added those :S

any clarificatin around those point-vertex thingies would be much appreciated

Thanks , Best Regards