Showing posts with label VEXpression. Show all posts
Showing posts with label VEXpression. Show all posts

Jul 19, 2017

VEX | Scaling Point In Packed Primitive





This VEX Code is a great! That way can make a arrangement scale in packed primitive. 


Dec 7, 2016

Houdini | VEX : Rotate Control Each Points







I needed to adjust some rotation each points in copy sop. And I did not use random function in VEX. I challenged to use VEX in Attribute Wrangle. I've had to use several functions. I'll explanation that functions in this article.


[.hip file : CopyRotateControl.hip]



Jul 11, 2016

Houdini | VEX Introduction





VEX入門のまとめ。

http://www.sidefx.com/docs/houdini15.5/vex/snippets
ここでVEXの基本事項を確認すること。


[ 扱えるアトリビュートとVEXタイプ]

vector : @P, @accel, @center, @dPdx, @dPdy, @dPdz, @Cd, @N@scale, @force, @rest, @torque, @up, @uv, @v

vector4 : @backtrack, @orient, @rot

int : @id, @ix, @iy, @iz, @nexid, @pastate, @resx, @rexy, @resz, @ptnum, @vtxnum, @primnum, @numpt, @numvtx, @numprim, @group_*

string : @name, @instance


Jun 29, 2016

Houdini : POP | Life span scale animation





パーティクル発生時に小さくて途中で大きくなって終わりに小さくなるパーティクルを
簡単なVEXを使用する基礎とそのメモ。相当基礎です。


 [.hip file - 04_POP_LifeSpanScale_01.hip] in preoaration.


Dec 11, 2015

Houdini : SOP | VEX Basic 01



SOP | VEX Basic  [.hip file - 03_VEX_Basic01_.hip]
Use VEX in AttribWrangle SOP to make attribute and local attribute.