#ifndef CONSTANTS_GLSL_
#define CONSTANTS_GLSL_

#define PI 3.1415926535897932384626433832795
#define PI2 (PI*2)

// geometry
#define CURVATURE_FACTOR 0.002

// lighting
#define SKY_LIGHT_MUL 2.9
#define SKY_LIGHT_TINT (vec3(1.0, 0.95, 0.9) * 2.0)
#define MIN_SKY_LIGHT vec3(0.2, 0.25, 0.33)

// fog
#define FOG_POS_SCALE vec3(1.0, 0.2, 1.0)

#endif // CONSTANTS_GLSL_