C:/Users/thebigMuh/Documents/Visual Studio 2005/Projects/Volumizer/Volumizer/util.h

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#include "Volumizer.h"
#include "math.h"

#ifndef __UTIL_H__
#define __UTIL_H__

#define clamp(_val, _min, _max) ((_val < _min)?_min:((_val > _max)?_max:_val))

typedef struct {
        float x, y, z;
} vect;

typedef struct {
        float r, g, b, a;
} color;

typedef struct {
        vect pos;
        vect org;
        vect up;
        float rotx, roty;
} camera;

static inline float dot(vect v1, vect v2)
{
        return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
}

static inline vect cross(vect v1, vect v2)
{
        vect res;

        res.x = v1.y * v2.z - v2.y * v1.z;
        res.y = v1.z * v2.x - v2.z * v1.x;
        res.z = v1.x * v2.y - v2.x * v1.y;

        return res;
}

static inline float norm2(vect v)
{
        return v.x*v.x + v.y*v.y + v.z*v.z;
}

static inline float norm(vect v)
{
        return sqrtf(norm2(v));
}

static inline void normalize(vect &v)
{
        float vn = norm(v);

        v.x /= vn;
        v.y /= vn;
        v.z /= vn;
}

#endif //__UTIL_H__

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