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Particle Shader Emssion Intensity

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So I downloaded this very cool HDA asset file for sparks from http://www.affex.no/houdini-sparks/

Now I have some things Im trying to nail down. And hope someone can help.

Now the HDA is setup with a few particle attributes that the shader can read.  For some reason I cannot get energy portion to work for emission intensity amount. 

I have the color output working but not to sure I had it correct.

I have tried several different ways after searching but still no joy. Still being quite new to Houdini Im sure there something I missed

I have attached the HDA digital asset to this post.





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