1.1 --- a/src/renderer.h	Tue Dec 30 21:20:57 2014 +0200
     1.2 +++ b/src/renderer.h	Wed Dec 31 05:21:47 2014 +0200
     1.3 @@ -14,6 +14,7 @@
     1.4  	float clip_plane[MAX_CLIP_PLANES][4];	// nx,ny,nz,dist
     1.5  
     1.6  	TransferFunc *xfer;
     1.7 +	float zscale;
     1.8  
     1.9  public:
    1.10  	Renderer();
    1.11 @@ -25,6 +26,9 @@
    1.12  	virtual void set_volume(Volume *vol);
    1.13  	virtual Volume *get_volume() const;
    1.14  
    1.15 +	virtual void set_zscale(float zs);
    1.16 +	virtual float get_zscale() const;
    1.17 +
    1.18  	virtual void set_transfer_function(TransferFunc *xfer);
    1.19  	virtual TransferFunc *get_transfer_function() const;
    1.20