Category Archives: Blender Tutorial

Processing: How to Make Transparent Textures


After a long vacation, a wedding, a bad flu, and a whole mess of planes, trains, and automobiles, I’m back to talk about textures. I love playing with transparency in scenes, but scripting transclucency is a bit unusual in Processing. The normal Processing canvas doesn’t support an alpha channel, so it requires something called PGraphics().

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Blender: How to Loop an Image Sequence into Textures

Animating Blender Textures With Processing

Animated textures in Blender is a thing! Immediately after finding that out, I set out to script a grid crawler texture in Processing. Because no one in their right mind would want to draw that by hand.

A Bit Of Everything has a post with the logic for a static grid, but somehow getting an animated version ate 3 hours of my life. All in all, it took about 12 tries. What I love  about Processing is that even bad guesses can have pleasing results.

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Python Update: How to Animate Text in Blender


I’m generally opposed to functions that overload on parameters. But seeing as how Blender functions do it all the time, I figured I’d go nuts for this updated text animation function.

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Processing: How to Code A Wheel Cipher Layout

Thomas Jefferson's Wheel

I’ve been reading Code Breakers by Rudolf Kippenhahn. What hooked me into it was the part about the Wheel Cipher, a device envisioned by Thomas Jefferson in the late 1700’s. You can see Jefferson’s note about the wheel in his very own, genuinely awful handwriting here.

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Python: How to Loop through Every Vertex in a Mesh

The Spiral

Sometimes I get embarrassingly excited about being able to do things in Python that I will probably never need to do again. This is one of those times.

I had a mesh—a plane that I had turned into an a spiral walk-way. And I had the thought, this thing can’t have walls. Eventually I want the walk-way to be the center of a large arena that’s coated in fog. And the only way you’d really be able to see that it’s a spiral is if it’s semi-transparent and lined in lights.

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Python: How to Randomize Rotation in Blender

The Confetti Function

A couple weeks back, I posted a confetti function that was wildly fun to play with, but frustrating because all the confetti was oriented in the same direction.

In the end, I started selecting the individual planes at random to rotate the manually, but well, let’s face it. There were over 200 planes. That was just stupid. Two new lines of Python. That’s all it took. I actually wasn’t even the Python that threw me in the first place—it was the rotation operator.

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PYTHON: How to Code Materials in Blender Cycles

What's Going On Here?

There are times when I feel the need to take a step back and re-evaluate all my life decisions. Those moments tend to be preceded by questions like how the crap did I end up in this field of kudzu, and where the hell did that snake go? Or how hard could it be to script random materials in Blender with Python—an hour tops?

That last one led me to three days of HELL. This was, by far, the most difficult Blender script I’ve tackled because the API doesn’t have much on how to create materials.

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