Maybe you can use this for something?


camera { orthographic right 1*x location -1*z look_at 0 angle 90 }

// The variable that can scale or move an object
// in steps of one pixel left / right / up / down

#declare Pixel = 2/<image_width,image_height,1>;
#declare My_Object = sphere { 0,10*Pixel }; // Radius = 10 pixels

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