Artifacts

A color image showing a rendering artifact by Easy Diffusion. The image is highly pixelated with areas of blue, grey, and turquoise, and resembles two human figures, possibly wearing jackets and hats.

As I play around with Easy Diffusion, I’ve been reminded of something that happened fairly often when I was working with Blender on a regular basis: rendering artifacts. Artifacts happen when there is a problem between what the user thinks they told the software to create and what it actually does. In the case of Easy Diffusion, Stable, Diffusion, and other ML-enabled image generators, the artifacts frequently involve extra limbs, limbs, that are missing or deformed, faces that are garbled, and so on. Normally artifacts are undesirable and should be avoided, but sometimes, they turn out to be really spectacular.

I’ve been playing with different LoRAs, and while using the same prompt and negative prompt, I’ve been getting wildly different results. That’s expected, but several have returned artifacts, which is also expected. Most of the artifacts are sort of boring, looking like static on a TV screen or strands of fibers. The images below are just two examples of this.

However, sometimes the render artifacts are so wonderfully wild, they’re worthy of being considered on their own. The images below are a few examples that have occurred over the past day or so while I’ve been working with different LoRAs.

A render artifact in black-and-white that shows a repeating pattern reminiscent of a houndstooth check.
A render artifact in black-and-white that shows a repeating pattern reminiscent of a houndstooth check.
A render artifact that resembles an abstract painting of yellow, white, beige, and grey.
A render artifact that resembles an abstract painting of yellow, white, beige, and grey.
A render artifact that appears to be rows of tesselated pixels, mostly in blue and grey, with a strong red area near the center and beige areas near the bottom.
A render artifact that appears to be rows of tesselated pixels, mostly in blue and grey, with a strong red area near the center and beige areas near the bottom.
A render artifact that shows spots of black alternating with spots of vibrant colors, and in the center appears to be an image of a person with a head, torso, an arm, leg, and foot.
A render artifact that shows spots of black alternating with spots of vibrant colors, and in the center appears to be an image of a person with a head, torso, an arm, leg, and foot.
A render artifact that resembles a microscopic view of an insect's exoskeleton.
A render artifact that resembles a microscopic view of an insect’s exoskeleton.
A render artifact showing splashes of red, pink, green, grey, and blue, while the background shows a hardwood floor and a wall.
A render artifact showing splashes of red, pink, green, grey, and blue, while the background shows a hardwood floor and a wall.

As I play around with Easy Diffusion, I’ve been reminded of something that happened fairly often when I was working with Blender on a regular basis: rendering artifacts. Artifacts happen when there is a problem between what the user thinks they told the software to create and what it actually does. In the case of…

Leave a Reply

Your email address will not be published. Required fields are marked *