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Rendering a car wrap preview in the browser: notes from a side project

I built a small web tool that previews custom wraps on Tesla models in 3D. A few things I learned along the way: UV maps decide everything. The wrap image is projected onto the model through its UV layout. If the UV islands do not match the real panel templates, a design that lines up on paper drifts on the 3D car. Keep textures power-of-two and cap the size. Phones choke on huge textures. 2048…

dev.to ·2h ago

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MCP Auth Gets Real: What the 2026-07-28 Spec Means for Local MCP Servers Behind a Tunnel

Authentication is the part of MCP that tends to get postponed. A May 2026 measurement study put it plainly: many remote servers treat it as a deployment add-on rather than a security boundary.

2h ago ·dev.to

A Screenshot MAE Is Not a Material Accuracy Score

AI assistance disclosure: AI assisted with research, drafting and the numerical analysis reported here. The source images are direct WebGL renders, not AI-generated images.

Screenshot MAE measures pixel differences, not accuracy
6.407536 MAE over full image vs 18.313377 over mask
Averaging domain impacts reported score significantly

2h ago ·dev.to

Weekly Challenge: An average reflection

Weekly Challenge 397 Each week Mohammad S. Anwar sends out The Weekly Challenge , a chance for all of us to come up with solutions to two weekly tasks.

Absent smallest positive integer found in array task
Binary reflection sorting method used in second task
Weekly Challenge 397 features two coding tasks

2h ago ·dev.to

Malaysia Airlines says IT systems unaffected by Amadeus data breach

KUALA LUMPUR: Malaysia Airlines Bhd said its own IT systems have not been compromised, although a cybersecurity incident involving its third-party technology provider, Amadeus IT Group, S.A.

2h ago ·nst.com.my

Android AppFunctions Is in Beta. The Code Is Still Alpha

The Android Developers account called AppFunctions "officially in beta" from the Android Dev Summit stage. The Jetpack library it points you to is 1.0.0-alpha10 . That gap is the whole story.

Android AppFunctions in beta, code still alpha
Developers declare functions with @AppFunction annotation
API requires Android 16+, inaccessible to most users

2h ago ·dev.to

Consider Using the nc Command for Connectivity Verification

Introduction When verifying connectivity to external servers or databases, which command do you typically use? I'd like to recommend the nc (Netcat) command for this purpose.

Use nc command for connectivity verification
Display "Connection succeeded!" on success
Preferred over ping for network-level checks

2h ago ·dev.to

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