oivAlgebraicShape.h

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#ifndef ALGEBRAIC_SHAPE_H
#define ALGEBRAIC_SHAPE_H
 
#ifndef OIV_HAS_ASRAY
#define OIV_HAS_ASRAY
struct OivASRay {
  vec3 rs; // ray start
  vec3 re; // ray end
  vec3 rd; // ray direction
};
#endif
 
struct OivASPoint {
  vec3 position;
  vec3 normal;
  vec4 color;
};
 
bool OivASSolveQuadric ( in vec3 abc, inout vec2 roots );
 
bool OivASRayPlaneIntersection ( in OivASRay ray, in vec4 plane, inout float t );
 
vec4 OivASGetColor ();
 
float OivASGetOpacity ();
 
bool OivASIsOpaque ();
 
/******************************** SLOT ***************************************/
 
void OivASVertexShaderEntry ();
 
vec4 OivASComputeColor ( in OivASPoint p );
 
bool OivASRayIntersection ( in OivASRay ray, inout OivASPoint p );
 
#endif // ALGEBRAIC_SHAPE_H