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ArjinFerman  Tinfoil Gigachad  7mo ago (text post)   476 thread views

Tinker Tuesday for June 17, 2025

This thread is for anyone working on personal projects to share their progress, and hold themselves somewhat accountable to a group of peers.

Post your project, your progress from last week, and what you hope to accomplish this week.

If you want to be pinged with a reminder asking about your project, let me know, and I'll harass you each week until you cancel the service

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Update.

Separately I noticed there's a problem with how the wheels spin and play with the ambient sunlight. The light appears to get painted onto one section of the wheel and it spins around the wheel with it, which is obviously wrong. I spent a few days on this and haven't made much progress. I'm kind of pulling my hair out.

I finally decided to look at the "normal map" for the wheel and notice it's ... painted on looking? The top right of the circle is dark and the bottom left is shiny which is the behavior I'm running into. As the wheel spins the shine "follows" it towards the ground and then up the back until it loops around again.

/facepalm

Looks like the person who made this model didn't ever expect the wheels to actually turn, which you know, fair. Surprised they did this because the rest of the car relies on reflecting the ambient lighting instead of painted on lighting.

I'm embarrassed it took me this long to decide to check the data.

EDIT: fuck, that's not actually the problem. the normals map is not a shade map. it makes sense that the "color" at one end of a circle is different from the other end

/images/17502758176521997.webp

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