GamesFPSA Fortnite player wondered why there was ‘mold’ in their game: turns out it’s a texture Tim Sweeney added to Unreal Engine in 1995When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.
GamesFPSA Fortnite player wondered why there was ‘mold’ in their game: turns out it’s a texture Tim Sweeney added to Unreal Engine in 1995When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.
When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works.
(Image credit: Epic Games)

It isn’t a picture of mold, but a stock photo of “cave pearls, a kind of calcium carbonate deposit that forms in limestone caves,” Epic Games founder and CEO Tim Sweeneysaid on Xin response to the question fromM1das.
Sweeney says he added the texture to the first version of Unreal Engine all the way back in 1995.
“This is Unreal Engine’s default texture,” he said. “I imported it into Unreal Engine 1 in 1995 while I was developing on a 90 MHz Pentium. It’s still there and shows up when a programmer forgets to specify a texture.”
I assume I must have seen these cave pearls many times: I’ve played a lot of Unreal Engine games, and whoever messed up Fortnite’s news feed is hardly the first developer to ever forget a texture. But I don’t recognize the image. Not like theSource engine’s missing texture icon, that famous fuchsia checkerboard, or its giant red “ERROR” text.
This is Unreal Engine’s default texture. I imported it into Unreal Engine 1 in 1995 while I was developing on a 90 MHz Pentium. It’s still there and shows up when a programmer forgets to specify a texture.November 14, 2024
This is Unreal Engine’s default texture. I imported it into Unreal Engine 1 in 1995 while I was developing on a 90 MHz Pentium. It’s still there and shows up when a programmer forgets to specify a texture.November 14, 2024
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