1.1 --- a/src/renderer.h	Mon Dec 29 05:41:36 2014 +0200
     1.2 +++ b/src/renderer.h	Mon Dec 29 15:59:55 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  	Curve xfer[3];	// rgb transfer function
     1.7 +	float xfer_low, xfer_high;	// simple transfer function bounds
     1.8  
     1.9  public:
    1.10  	Renderer();
    1.11 @@ -28,6 +29,9 @@
    1.12  	virtual Curve &transfer_curve(int color);
    1.13  	virtual const Curve &transfer_curve(int color) const;
    1.14  
    1.15 +	virtual void set_simple_transfer(float low, float high);
    1.16 +	virtual void get_simple_transfer(float *low, float *high) const;
    1.17 +
    1.18  	virtual void set_clipping_plane(int idx, float nx, float ny, float nz, float dist);
    1.19  	virtual void disable_clipping_plane(int idx);
    1.20