space-crush/space-crush-app/resources/shader/ship/ship_shared.glsl

struct FragmentData {
    vec2 texCoords;
    vec3 color;
};

struct VertexData {
    vec2 pos;
    vec2 dir;
    vec3 color;
    int  texture;
};

const float SHIP_SIZE  = 25.00; // absolute ship size
const float GLOW_SIZE  =  4.00; // relative to ship size
const float GLOW_ALPHA =  0.05;