All stories*

70 quick stories on the rack · #gaming
7 min

How Game Engines Fake Volumetric Light Beams

Game engines use clever shortcuts to fake god rays and light shafts. Here's exactly how they decide what to ca…

SISana Iqbal↗
4 min

How Game Engines Decide Which NPCs to Simulate

Game crowds use a layered LOD system to fake thousands of characters without melting your GPU. The seams are i…

LPLeo Park↗
6 min

How Game Engines Handle Ambient Sound Loops

Game engines split ambient audio into loops and one-shots using deliberate mechanical rules. The logic behind …

LPLeo Park↗
5 min

Why Game Engines Delete Your Bullet Holes

Decals vanish under memory pressure, not on a timer. Engines run a quiet cost-benefit calculation, age, distan…

SISana Iqbal↗
7 min

Game Engines Pick Which Bones to Simulate

Ragdoll physics runs on a strict budget. Engines rank every bone by visual importance and simulate only what y…

LPLeo Park↗
7 min

How Games Fake Infinite Mirror Reflections

Games can't render true infinite mirror loops. The trick engines use to decide where to stop is more interesti…

SISana Iqbal↗
5 min

How Game Engines Fake Water Caustics

Real-time water caustics would melt any GPU if done honestly. This is the approximation trick engines actually…

SISana Iqbal↗
6 min

Game Engines Animate Wind-Blown Trees Without Physics

Vertex shaders, painted weights, and invisible wind zones do the heavy lifting, no physics simulation required…

LPLeo Park↗
7 min

Game Engines Fake Grass Animation Brilliantly

No game simulates every blade of grass. Engines use culling, sine waves, and LOD tricks to fool your eyes at a…

LPLeo Park↗
7 min

Game Engines Blending Overlapping Character Animations

Sprinting and reloading at once? The engine splits the skeleton, weights dozens of joints, and outputs one pos…

SISana Iqbal↗
7 min

Why Game Engines Struggle to Render Transparent Surfaces

Transparency in 3D games breaks in specific, predictable ways. The sorting tricks engines use, and why none of…

SISana Iqbal↗
6 min

Game Engines and the Logic Behind Layered Footstep Sounds

From terrain weight maps to secondary raycasts, game engines run a fast, intricate query every footfall, and w…

SISana Iqbal↗