RedM Studio

int main(int argc, char **argv){
    // Initialize
    // Screen
    int width  = 320;
    int height = 240;
    int bitDepth = 3;
    
    // camera
    camera cam;
    cam.pos      = VECT(0, 0, -3);
    cam.aimPos   = VECT(0, 0, 0);
    cam.picAngle = 30.0;
    cam.bgColor  = COL3(0.5, 0.5, 0.5);
    cam.initAxisConv(width);

    // light
    pointLight plit;
    plit.intencity = 1.0;
    plit.pos  = VECT(-1.0,1.0,-1.5);
    // shader
    blinn blnSHD(COL3(1.0, 0.50, 0.0));// color
    blnSHD.power = 2;
    
    // sphere
    sphere sph = sphere(VECT(0.0, 0.0, 0.0), 1, &blnSHD);// center , radius, shader

    // image buffer
    image img(width*height*bitDepth);

    // Render Loop
    int w, h;
    for(h=0;h<height;h++){
        for(w=0;w<width;w++){
            // create vector
            VECT screenPos = cam.AxisConv(VECT(w-width/2, height/2 - h, 0));
            cam.unit = SMILunit(cam.pos, screenPos);
            
            int idx=(h*(width)+w)*3;
            // hit judge
            VECT hitPos;
            int isHit = sph.hitJudge(cam.pos, cam.unit, hitPos);
            
            if(isHit){
                // Point light
                VECT faceNormal   = sph.getHitNormal(hitPos);
                plit.setLightDir(hitPos);

                COL3 col = sph.shd->shading(faceNormal, &plit);
                img.setColor(idx, col);
            }else{
                img.setColor(idx, cam.bgColor);
            }
            
        }
    }

    // Output Image
    bmpLib bl;
    bl.bmpExport("output.bmp",width, height, bitDepth, img.c_buf);

    return 0;    
}