// sample rib C++ file -- sample_ribcc.cc
// Author: Jorge Balbas <jorge.balbas@csun.edu>
// Date: 02/19/09

#include <cmath>
#include <cstdlib>
#include <cstdio>
#include <iostream>
#include <ri.h>

using namespace std;

int main()
{	
	static RtFloat fov = 40, intensity0 = 0.4, intensity1 = 0.7, intensity2 = 0.7, intensity3 = 0.7, intensity4 = 0.7;
	
	static RtPoint from1 = {-10.0,12.0,-10.0}, to1 = {10.0,-12.0,0.0};
	static RtPoint from2 = {-10.0,-12.0,-10.0}, to2 = {10.0,12.0,0.0};
	static RtPoint from3 = {10.0,12.0,-10.0}, to3 = {-10.0,-12.0,0.0};
	static RtPoint from4 = {10.0,-12.0,-10.0}, to4 = {-10.0,12.0,0.0};
	
	static RtPoint fpoints[4] = {-80.0, -80.0, 0, 80.0, -80.0, 0.0, 80.0, 80.0, 0.0, -80.0, 80.0, 0.0};

	static RtColor curve_color = {1.0, 1.0, 1.0};
	static RtColor plane_color = {0.3, 0.3, 0.8};
	static RtColor dome_color = {0.2, 0.1, 0.6};
	static RtColor ball_color = {0.7, 0.8, 0.0};
	static RtColor Os = {0.5, 0.5, 0.5};
	
	char sample_file[25];
	
	RtObjectHandle curve1, curve2, curve3, curve4;
	
	sprintf(sample_file, "sample_ribcc.tiff");
	
	RiBegin (RI_NULL);
	RiProjection ("perspective", "fov", &fov, RI_NULL);
	RiDisplay (sample_file, "framebuffer", "rgb", RI_NULL);
	RiDisplay (+sample_file, "file", "rgb", RI_NULL);
	RiFormat (600, 400, 1);
	
	curve1 = RiObjectBegin();
		RiTransformBegin();
			RiRotate (-15.0, 1, 0, 0);
			RiRotate (165.0, 0, 0, 1);
			RiSphere (1.0, -0.73, -0.63, 215, RI_NULL);
		RiTransformEnd();
	RiObjectEnd();
	
	curve2 = RiObjectBegin();
		RiTransformBegin();
			RiRotate (15.0, 1, 0, 0);
			RiRotate (165.0, 0, 0, 1);
			RiSphere (1.0, 0.63, 0.73, 215, RI_NULL);
		RiTransformEnd();
	RiObjectEnd();
	
	curve3 = RiObjectBegin();
		RiRotate (90.0, 0, 1, 0);
		RiTransformBegin();
			RiRotate (-15.0, 1, 0, 0);
			RiRotate (-15.0, 0, 0, 1);
			RiSphere (1.0, 0.63, 0.73, 215, RI_NULL);
		RiTransformEnd();
	RiObjectEnd();
	
	curve4 = RiObjectBegin();
		RiRotate (90.0, 0, 1, 0);
		RiTransformBegin();
			RiRotate (15.0, 1, 0, 0);
			RiRotate (-15.0, 0, 0, 1);
			RiSphere (1.0, -0.73, -0.63, 215, RI_NULL);
		RiTransformEnd();
	RiObjectEnd();
		
	RiFrameBegin(1);
		
	RiWorldBegin();
		RiTranslate (0.0, -1.0, 10.0);
		RiRotate(85.0, 1, 0, 0);
		RiRotate(60.0, 0, 0, 1);
		
		RiLightSource ("ambientlight", "intensity", &intensity0, RI_NULL);
		RiLightSource ("distantlight", "intensity", &intensity1, "from", from1, "to", to1, RI_NULL);
		RiLightSource ("distantlight", "intensity", &intensity2, "from", from2, "to", to2, RI_NULL);
		RiLightSource ("distantlight", "intensity", &intensity3, "from", from3, "to", to3, RI_NULL);
		RiLightSource ("distantlight", "intensity", &intensity4, "from", from4, "to", to4, RI_NULL);
		
		RiTransformBegin();
			RiTranslate (0.0,0.0,-1.5);
			RiAttributeBegin();
					RiColor (curve_color);
					RiSurface ("matte", RI_NULL);
					RiObjectInstance (curve1);
					RiObjectInstance (curve2);
					RiObjectInstance (curve3);
					RiObjectInstance (curve4);
			RiAttributeEnd();
		RiTransformEnd();
		
		RiAttributeBegin();
			RiTransformBegin();
				RiSurface("matte", RI_NULL);
				RiColor(plane_color);
				RiPolygon(4, RI_P, (RtPointer)fpoints, RI_NULL);
			RiTransformEnd();
		RiAttributeEnd();
		
		RiAttributeBegin();
			RiColor(dome_color);
			RiTransformBegin();
			RiSphere (80.0, -80.0,  0.0, 360.0, RI_NULL);
			RiTransformEnd();
		RiAttributeEnd();

	RiWorldEnd();
	RiFrameEnd();
	RiEnd ();
	
	return 0;
}