Forums Technical Discussion how to use a SOP attribute in displacement shader?

how to use a SOP attribute in displacement shader?

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flyingc
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hi
I customize an attribute,such as xx, in Sop.
how to use the attribute in vex displace shader?
thanks
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eetu
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Use a Parameter VOP, with the parameter name set to the attribute you wish to import.

eetu.

Attachments:
attrib_displace.hip (477.1 KB)

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flyingc
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thank you.
but i want to write a vex displace shader .
not in vop network.
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eetu
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Oh, I see.

I've never written one, but looking at the “View VEX Code” from the above VOPnet, seems like if you just do

displace myDisplace(…, float xx = 1)

it will import the attribute (with a default of 1)

eetu.
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Infernalspawn
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i guess adding this parameter as input variable to the vex function should do the trick

myVexFunction( float myVar
{


}

whoops to late
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flyingc
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eetu
Oh, I see.

I've never written one, but looking at the “View VEX Code” from the above VOPnet, seems like if you just do

displace myDisplace(…, float xx = 1)

it will import the attribute (with a default of 1)

eetu.

thank u ,i try it ,it works!
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