VEX, data types, attributes & functions - Houdini for Noobs 07

[@almossawi]

cant thank you enough, this is very well needed and nobody seems to talk about the basics, thanks man!

[@jiluen]

Thank you very much for taking the time to make this awesome tutorial. I didn't find anything with this level of pedagogy anywhere else. You explain the basics of vex thoroughly, yet straight to the point. This will help a lot, thanks again!

[@UmairAliMughal2009]

veyr very excellent and high quality stuff for beginner…please need more !🎉

[@charlesm835]

Thanks for these excellent beginner tutorials! Having never really jumped behind code before, you made it easy to understand the basics. I definitely had to be paying laser-focused attention and taking notes, but I'm sure that's what Houdini is all about.

[@arsensuleymanov7935]

Thanks for tutorial. Whould be happy to see more of VEX tutorials

[@AxisDesignerGFX]

I'll do a more advanced vex tut soonish. Covering arrays and vex in solvers.

[@ЛизаКлёц-х9п]

Great tutorial! Thanks!!!

[@dipankarbiswas033]

brother u r rock .. thanks for this tutorial >

[@globglob3d]

Nicely explained, great tutorial

[@mariacelis9278]

VERY GOOD TUTORIAL, examples are helpful and cover a lot of topics :)

[@lalaneverquit]

This totally changed the way how I see Houdini. Nicely taught. Thanks 😊

[@andresfelipehernandezospin5261]

I think that at kzbin.info/www/bejne/fHaWfn5urLCLiKs you're confusing attributes with variables (houdinitricks.com/vex-attributes-vs-variables/). They are not the same, that's why you need to reference attribute with @ after the data type. When write a variable, you start with the data type, then space and then the name of the variable

[@Sk8oorDie]

Thanks, but i got a problem. I scattered a sphere and used copytopoints with cubes. Now i want the cubes to change color, if they are far away from the middle of the sphere. I tryed something with an attributewrangle but i dont know which code to use. if(@P > far away from the middle of my sphere ) { @Cd= set(1,0,0); } it should be something like this... i hope you get the point :D

[@AxisDesignerGFX]

Hope this helps: www.dropbox.com/s/v4y6mt7odt12lp7/ramp_centre_v001.hip?dl=0

[@ShawarmaBaby]

Anyone know the shortkey to compile?

[@AxisDesignerGFX]

I was using ESC to run the code

[@andreyluccahannes5377]

Hi, Is there a reason why you need to multiply @ptnum with a float, because mathmatically it doesent change anything if you multiply it with 1.0?

[@AxisDesignerGFX]

If you don't multiply it by a float it will stay an integer

[@Dazzer1234567]

It's just a trick to convert an int into a float without changing the value. Because if you do a float * int, VEX will automatically think that you want your answer to be float-ready, even if the answer of this particular multiplication could happily be expressed as an int.........so then the product is converted into a float.

[@manishnamdeodir]

codes are not working on Houdini 17.5

[@AxisDesignerGFX]

I did the tutorial in 17.5 lol

[@Dazzer1234567]

Working over here on 17.5...........

[@Dazzer1234567]

Great tutorial, many thanks, was looking for a basic VEX tut. to get started with VEX and this got the job done nicely...........

[@NextroneOfficial]

Wow! I was looking for some tutorials on attributes and just found this one of yours on your channel. Going to watch them all as i saw you have this series called houdini for noobs. Really trying to get the hang on how the attributes work, as i think im coming and more to understanding that learning and understanding attributes are really the building blocks of the Houdini. Now i just barely scratched the surface with them with the attribute transfer and the color (verry basic i know), but im starting to think of attributes as a sculpting process, like "sculpting the data to what fits the needs within the imagination."

[@almossawi]

By the way whats the difference between f@my_float, or float my_float when creating an attribute, do both work?

[@AxisDesignerGFX]

The attributes prefixed with '@' will be stored on geometry. float my_float will only be remembered while the code is running. They both work but only attributes you need to access later in your nodetree such as @pscale should be stored on points to save computation time.

[@karolinasereikaite8233]

Thank you for your explanation! I am totally beginner in vex, anyone can help with taking the points above a specific y-axis number? Let's say above 0 or above 0.2? Thanks!

[@AxisDesignerGFX]

Here's an example. Finds the difference between current lowest y position and adds that difference to every points Y pos. www.dropbox.com/s/205ds1xesh4csv2/move_above_y_v001.hip?dl=0 Let me know if that helps.

[@karolinasereikaite8233]

@@AxisDesignerGFX thanks a lot! Good to know that way now too! I eventually added groupexpression and delete nodes or with attribute wrangle creating threshold. I'm studying your option now, blows my mind how many ways there are to achieve goal! Thank you a lot.

[@alistairbuchan]

These are really good. Even though Im going through them 3 years later they are super helpful for me personally getting into houdini. Good pace, good level and amount of info per video. Good helpful tone (some CG tutorials can be a bit patronising). Some tutorial series are a chore to get through, this one is not! When each one is done I look forward to starting the next!

[@manishnamdeodir]

thanks, for all the tutorial, they are all very easy to understand

[@AxisDesignerGFX]

No problem! Did you figure out the issue with your vex?

[@Tyler-zb6ec]

Dude you're awesome. I've went through soooo many tutorials to try and understand this and this one has helped me the most.

[@npmmalayalamvfxtutorials1717]

Wow, well understandable even if you are bad in English thanks mate...