#define PI_OVER_360 0,0087266

void SetupProjection(float projMat[16], float fov, float aspect, float zNear, float zFar)
{
    float top = zNear * tan(fov * (float)PI_OVER_360);
    float bottom = -top;
    float right = top * aspect;
    float left = bottom * aspect;

    float width = right - left;
    float height = top - bottom;

    float depth = zFar - zNear;

    projMat[0]  = (2 * zNear / width) / aspect;
    projMat[1]  = 0;
    projMat[2]  = 0;
    projMat[3]  = 0;

    projMat[4]  = 0;
    projMat[5]  = 2 * zNear / height;
    projMat[6]  = 0;
    projMat[7]  = 0;

    projMat[8]  = 0;
    projMat[9]  = 0;
    projMat[10] = -(zFar + zNear) / depth;
    projMat[11] = -1;

    projMat[12] = 0;
    projMat[13] = 0;
    projMat[14] = -2 * (zFar * zNear) / depth;
    projMat[15] = 0;
}mmmmmmmmmmmmmmmmmmmmmmm