Cortex_Engine

T

emil28092005 6a473bdc53 fix: flip normal only by view direction — fixes both cubes and spheres

Previous fix flipped normal by both light AND view direction:
  if (dot(N,L) < 0) N = -N;
  if (dot(N,V) < 0) N = -N;
This double-flip broke spheres: when light is behind sphere, front faces
get N flipped by light (now facing away from camera), then flipped back
by view — but back faces get flipped once, causing inconsistency.

Correct approach: flip ONLY by view direction:
  if (dot(N, V) < 0.0) N = -N;
This ensures the normal always faces the camera. Faces pointing away
from light naturally get NdotL=0 (no lighting) — correct behavior.
Spheres keep smooth normals, cubes get inward normals fixed.

2026-06-18 21:56:10 +03:00

Content

feat: modular HAL, Raylib backend, PBR shading, textures, 60 unit tests

2026-06-17 13:49:12 +03:00

scripts

fix(window): ensure SDL3/Wayland window is mapped by pumping events after ShowWindow

2026-06-18 00:38:16 +03:00

src

fix: flip normal only by view direction — fixes both cubes and spheres

2026-06-18 21:56:10 +03:00

tests/Engine.Tests

fix: Vulkan cubemap face directions — Y-up vectors corrected