CSG/tests/intersect_leaf_cylinder_test.cc

0001 /**
0002 intersect_leaf_cylinder_test.cc
0003 ===================================
0004
0005 **/
0006
0007 #include "OPTICKS_LOG.hh"
0008 #include <cmath>
0009
0010
0011 #include "scuda.h"
0012 #include "squad.h"
0013 #include "sqat4.h"
0014
0015 #define DEBUG 1
0016 #include "csg_intersect_leaf.h"
0017
0018
0019 int main(int argc, char** argv)
0020 {
0021     OPTICKS_LOG(argc, argv);
0022
0023     quad q0, q1 ;
0024     q0.f.x = 0.f ;
0025     q0.f.y = 0.f ;
0026     q0.f.z = 0.f ;
0027     q0.f.w = 10.f ;  // radius
0028
0029     q1.f.x = -5.f ;  // z1
0030     q1.f.y =  5.f ;  // z2
0031     q1.f.z =  0.f ;
0032     q1.f.w =  0.f ;
0033
0034     float4 isect = make_float4(0.f, 0.f, 0.f, 0.f );
0035     float t_min = 0.f ;
0036
0037     float3 ray_origin    = make_float3(  0.f, 0.f, 0.f );
0038     float3 ray_direction = make_float3(  0.f, 0.f, 1.f );
0039
0040     bool valid_isect(false) ;
0041     intersect_leaf_cylinder( valid_isect, isect, q0, q1, t_min, ray_origin, ray_direction );
0042     float3 pos = make_float3( 0.f , 0.f, 0.f );
0043
0044     if(valid_isect)
0045     {
0046         float t = isect.w ;
0047         pos  = ray_origin + t*ray_direction  ;
0048
0049         float sd = distance_leaf_cylinder(pos, q0, q1) ;
0050
0051         printf("//pos %10.4f %10.4f %10.4f  sd   %10.4f \n", pos.x, pos.y, pos.z, sd );
0052     }
0053
0054     return 0 ;
0055 }
0056
0057
0058