Write point attribute into texture directly with VEX

[pcswoo]

Hi, guys

I'm playing with Houdini and Unreal Engine 4 and I'm trying to bake each points position into texture.

https://docs.unrealengine.com/latest/INT/Engine/Animation/Tools/VertexAnimationTool/VAT_TL_Meshes/index.html

Basically, I want to transfer the maxscript that shown in above link into Houdini world.

I know there is several way to bake SOP data into texture, like using with texture bake node, or using with cop node like below link

but I'm wondering is there more direct way to do it via VEX?

Maybe using python with external python image library could be option but it may need too much work.

I found writepixel() VEX function in help, but I don't know how to use it.

Any suggestion or though will be appreciated.

Thanks!

Edited September 9, 2016 by pcswoo

[Elizeusz]

There is otl for doing what you need i think 

 

[mestela]

Here's the link directly to the orbolt otl (I suspect the mobile version of odforce tries to swap the vimeo page link with the video)

 

https://www.orbolt.com/asset/bk_::bk_vertexanim_bake

 

 

[pcswoo]

Thanks guys!

Yes that's what I want to make. 

I assume that the otl using pixel cop node inside and I think combination of pixel node and point() is what I need to make my own script.

 

Edited September 12, 2016 by pcswoo

[Elizeusz]

The author of this blog :  http://www.allegrodigital.com/?p=1991  made a nice tutorial it tooks about 45 min and You will find there explanation how to set up step by step this effect in Houdini and then how to create shader in unreal engine to read it.