fletchgraham

3D Pipeline Engineer, Technical Artist, Decade+ of professional CG experience, Blender expert

[fletchgraham @fletchgraham]

I made a node group that converts from cartesian to polar coordinates. Useful for all sorts of radial effects.

The blend is up on gumroad with 6 examples and 4 custom node groups. $2 for the ol' black friday

https://t.co/G326if64bi

#b3d

[fletchgraham @fletchgraham]

Polar coordinates are all about getting an *Angle* from some reference about an origin, and a *Distance* from that origin

This system is useful for radial effects like shockwaves, ripples, or scifi UI dials

Get the Blender 4.0 shader nodegroup here: https://t.co/AejxrgbCxt
#b3d

[fletchgraham @fletchgraham]

TLDR shader node steps for working clock

- convert from cartesian to polar coordinates
- partition the angle and mask part of each partition, 12 for the hour markers, 60 for the minutes
- use a line segment for each hand
- wire up the angles for each hand to the current frame

[fletchgraham @fletchgraham]

How to make a working animated clock using only shader nodes in Blender 4.0 - a thread

This blend file with the custom node groups and examples is available for $2 today on gumroad https://t.co/AejxrgbCxt

[fletchgraham @fletchgraham]

Use Line Segment nodes to draw the hands

Wire up the Angle input to the current frame with a driver

Divide the second hand's angle by 60 for minute hand

Divide the minute hand's angle by 60 for the hour hand

The full node setup for the clock:

[fletchgraham @fletchgraham]

Share your methods. If you have to protect HOW you did something in order to stay competitive your art isn't that great

[EDEN🥥 @sugarcollars]

What art opinion got you like this?

[fletchgraham @fletchgraham]

QT your traditional art!

[Glauco Longhi @glaucolonghi]

QT your traditional art!

[fletchgraham @fletchgraham]

@infin8eye defining how an object behaves with respect to different operators like + or *

if I were to give my Vector class an "__add__" method, it would call that method when the "+" operator is used.

so I could do vec_a + vec_b

[fletchgraham @fletchgraham]

every technical artist should write a math library from scratch

how better to gain an intuitive understanding of the inner workings of our bread-and-butter software? here's the beginning of a Vector class I wrote 3 years ago

#pythonprogramming

[fletchgraham @fletchgraham]

Enjoy a soothing time lapse of me cleaning up a rough bezier trace in Blender

#b3d

[fletchgraham @fletchgraham]

What's one VFX simulation effect you want to know how to make with Blender geometry nodes?

#b3d #geometrynodes

[fletchgraham @fletchgraham]

My new hobby is answering questions on Blender Stack Exchange. I'm in the top 2% for the quarter!

#b3d

[fletchgraham @fletchgraham]

The question: How to visualize radio waves in Blender?

This looping animation is what I came up with

#b3d #geometrynodes

[fletchgraham @fletchgraham]

Using ChatGPT to solve coding problems is like rubberducking.

It requires you to clarify your thinking and express it with words, which often gets you 80% of the way to a solution. As an added bonus the duck knows about all code published on the internet

[fletchgraham @fletchgraham]

The best skill I learned as a 3D artist was Python scripting. It allowed me to change jobs and double my salary

Start small.

Find a single part of your workflow that you can automate with a script. This was one of my first Blender scripts to select objects by keyword

#b3d

[fletchgraham @fletchgraham]

Lovely Lake shader nodes

[fletchgraham @fletchgraham]

Nodevember 3 - Lovely Lake. A single plane and material. Shader only, no geometry nodes this time

Nodes in the thread

#b3d #nodevember2023 #Nodevember

[fletchgraham @fletchgraham]

Lovely Lake shader overview