Farzon Lotfi

@farzon

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Software Developer working on the HLSL compiler.

Atlanta, GAJoined April 2026

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Software developer with experience in security, graphics, and compilers.

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Farzon Lotfi's blogs

Farzon's blogcodeblog.farzon.org28 posts

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Recently published

FLFarzon Lotficodeblog.farzon.orgMay 2 · 6 min read

The Geometry of Dragon Ball: A Deep Dive into SDFs and Raymarching

Today we are deconstructing the 4-Star Dragon Ball shader (available on Shadertoy here). This shader is a good example of using 2D math to drive 3D optical effects. To understand it, we must reference

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FLFarzon Lotficodeblog.farzon.orgMay 2 · 3 min read

From Sidelined to Streamlined: Cracking the Code (Part 2)

In Part 1, I talked about the high-level "magic" happening on your wrist. How Apple uses neural networks and math to guess your VO2Max even when you’re just walking around the block. But if you're lik

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FLFarzon Lotficodeblog.farzon.orgMay 2 · 4 min read

From Sidelined to Streamlined: Decoding My Apple Watch Metrics (Part 1)

I am a data junkie. I track, measure, and optimize. So, when a severe ankle injury recently sidelined me, the hardest part wasn't the physical pain it was watching my hard earned fitness metrics plumm

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FLFarzon Lotficodeblog.farzon.orgMay 2 · 4 min read

An Android Fuzzing Retrospective Part II: The "Single-VM" Theory and the Bionic Wall

In my previous post, I detailed how our move from the Android Emulator to standalone Android-x86 VHDX images gave us impressive cost saving wins for our fuzzing budget. With any infrastructure pivot,

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FLFarzon Lotficodeblog.farzon.orgMay 2 · 4 min read

A Retrospective on Fuzzing Edge for Android: Looking beyond the Emulator

When I was the head of Microsoft's Edge security for the US market, we ran into an infrastructure challenge that forced us to completely rethink how we fuzzed Android. The project we built no longer e

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Farzon Lotfi

About

Available for

Farzon Lotfi's blogs

Recently published

The Geometry of Dragon Ball: A Deep Dive into SDFs and Raymarching

From Sidelined to Streamlined: Cracking the Code (Part 2)

From Sidelined to Streamlined: Decoding My Apple Watch Metrics (Part 1)

An Android Fuzzing Retrospective Part II: The "Single-VM" Theory and the Bionic Wall

A Retrospective on Fuzzing Edge for Android: Looking beyond the Emulator

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Farzon Lotfi

About

Available for

Farzon Lotfi's blogs

Recently published

The Geometry of Dragon Ball: A Deep Dive into SDFs and Raymarching

From Sidelined to Streamlined: Cracking the Code (Part 2)

From Sidelined to Streamlined: Decoding My Apple Watch Metrics (Part 1)

An Android Fuzzing Retrospective Part II: The "Single-VM" Theory and the Bionic Wall

A Retrospective on Fuzzing Edge for Android: Looking beyond the Emulator