Jump to content

Recommended Posts

Hello everyone!

I'd like to thank you all for the interest the last time around, so I thought i'd celebrate by releasing the next 3 minutes of VEX; Exploring all things camera.

If you missed it the first time, every Monday at 12pm for the last month-ish I have been posting VEX mini-tutorial snippets on my website, the most recent of which can be found below. Enjoy!

 

1 Minute VEX IV - https://aaronsmith.tv/1-Minute-VEX-IV-V

An introduction to NDC space, and using to/fromNDC() to scale objects without changing position relative to camera.

 

1 Minute VEX V - https://aaronsmith.tv/1-Minute-VEX-IV-V#1mv_v

Using toNDC() and removepoint() to delete points that are not displayed on camera.

 

1 Minute VEX VI - https://aaronsmith.tv/1-Minute-VEX-VI

Using intersect() and optransform() to delete points hidden by camera occluding geometry.

  • Like 2
  • Thanks 1

Share this post


Link to post
Share on other sites

Hello once again!

Since the last time I posted here I've added three new tutorials, all of which briefly cover textures, mapping and colour in VEX. Thanks to everyone once again for all of the support and useful suggestions!

 

1 Minute VEX VII - OCIO transformed attribute from image https://aaronsmith.tv/1-Minute-VEX-VII

Using colormap() and ocio_transform() to read an sRGB image and convert it to an ACES-compliant attribute.

 

1 Minute VEX VIII - sampling nearest texture with UDIM filename expansion https://aaronsmith.tv/1-Minute-VEX-VIII

Using xyzdist(), primuv() and colormap() to sample the nearest UDIM-friendly texture on a surface.

 

1 Minute VEX IX - triplanar mapping & projection https://aaronsmith.tv/1-Minute-VEX-IX

Using simple vector math, for loops and colormap() to create a triplanar projection.

 

Please feel free to PM me with any questions or suggestions.

  • Like 2

Share this post


Link to post
Share on other sites

It is that time once again!

Three new snippets - exploring the various creative usages of arrays in VEX. I hope you all enjoy!

 

1 Minute VEX X - weighted integer sampling  https://aaronsmith.tv/1-Minute-VEX-X

Using sample_discrete() to make a weighted selection from an array.

 

1 Minute VEX XI - iterating over attributes (finding prim patch area) https://aaronsmith.tv/1-Minute-VEX-XI

Using uniquevals() and findattribval() to find the area of a prim patch (by attrib id)
 

1 Minute VEX XII - gradient estimation from neighbours https://aaronsmith.tv/1-Minute-VEX-XII

Using neighbours() to find all adjacent points and calculate a gradient vector with custom weights.

  • Like 2
  • Thanks 1

Share this post


Link to post
Share on other sites
On 11/27/2020 at 6:49 PM, Sebastien Rousseau said:

Thanks man for that, for people like me trying to go deeper and deeper in vex knowledge, it's the perfect kind of tutorial format I'm looking for!

Thank you! It means a lot to me to hear feedback like that. If there are any topics you'd like me to explore as you go forward with learning VEX, feel free to suggest anything.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×