> Camera_X =  sin((FrameCounter-1)*(2*pi)/149)*1195-100
oops, that's 360 deg, while we needed 90 deg, so:

Camera_X =  sin((FrameCounter-1)*(pi/2.0)/149)*1195-100
or:
Camera_X_start  = -100;
Camera_X_end    = 1095;
Camera_X_length = Camera_X_end-Camera_X_start;
Camera_X =
sin((FrameCounter-1)*(pi/2.0)/149)*Camera_X_length-Camera_X_start;

(a #declare pi2 = pi/2.0; at the top may come in handy)

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