Ability to pass a W variable to WebGL texture mapping

[minystreem56]

Increasing access

Make it so people are able to make there own 3D engines with textures.

Most appropriate sub-area of p5.js?

• Accessibility
• Color
• Core/Environment/Rendering
• Data
• DOM
• Events
• Image
• IO
• Math
• Typography
• Utilities
• WebGL
• Build process
• Unit testing
• Internationalization
• Friendly errors
• Other (specify if possible)

Feature enhancement details

I am making my own 3D engine, but I am using WebGL for texture mapping, but becuse I pass 2d cords to WebGL it cannot do the proper prespective projection making the texture look werid, here is my project so you can see this.
For more information check out this webpage that describes this issue in more detail.

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[davepagurek]

I'd love to get a general solution to custom attributes (#5120) as a way to enable this!

[minystreem56]

Sorry for disabling textures on my project, been working on it and forgot. if anybody wants to see it again I can fix it up.

[Forchapeatl]

@minystreem56 it would be nice to see the textures on your project . I am interested.