Ray mrMul(const Matrix matrix, const Ray ray) {
return makeRay(mvMul(matrix, ray.origin), vNormalized(mvMulDir(matrix, ray.direction)));
}
tVector2D Lapidem_Math::Vector2DNormalize( tVector2D _v )
{
float fLength( Vector2DLength( _v ) );
tVector2D vNormalized( _v / fLength );
return vNormalized;
}
Color sceneTraceRayAtPixel(const Scene *scene, const int currentPixel, const int width, const int height, const int numCameraRayBounces) {
const float cameraFov = 40;
const float cameraAspectRatio = 1;
float maxX = tanf(cameraFov/360.0*PI);
float x = ((((currentPixel % width) + randf()) / width ) * 2 - 1) * maxX;
float y = -((((currentPixel / width) + randf()) / height) * 2 - 1) * maxX / cameraAspectRatio;
return sceneTraceRay(scene, mrMul(mInversed(scene->cameraOrientation), makeRay(makeVectorOrigo(), vNormalized(makeVector(x, y, 1)))), numCameraRayBounces);
}