SLRaySamples2D.h

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/**
 * \file      SLRaySamples2D.h
 * \date      July 2014
 * \authors   Marcus Hudritsch
 * \copyright http://opensource.org/licenses/GPL-3.0
 * \remarks   Please use clangformat to format the code. See more code style on
 *            https://github.com/cpvrlab/SLProject4/wiki/SLProject-Coding-Style
*/
 
#ifndef SLSAMPLES2D_H
#define SLSAMPLES2D_H
 
#include <SL.h>
#include <SLVec2.h>
 
//-----------------------------------------------------------------------------
//! Class for 2D disk sample points
class SLRaySamples2D
{
public:
    SLRaySamples2D() { samples(1, 1); }
    ~SLRaySamples2D() {}
 
    // Setters
    void samples(SLuint x, SLuint y, SLbool evenlyDistributed = true);
    void point(SLuint x, SLuint y, SLVec2f point)
    {
        _points[x * _samplesY + y].set(point);
    }
    // Getters
    SLuint  samplesX() { return _samplesX; }
    SLuint  samplesY() { return _samplesY; }
    SLuint  samples() { return _samples; }
    SLVec2f point(SLuint x, SLuint y) { return _points[x * _samplesY + y]; }
    SLuint  sizeInBytes() { return (SLuint)(_points.size() * sizeof(SLVec2f)); }
 
private:
    void    distribConcentric(SLbool evenlyDistributed);
    SLVec2f mapSquareToDisc(SLfloat x, SLfloat y);
 
    SLuint   _samplesX; //!< No. of samples in x direction
    SLuint   _samplesY; //!< No. of samples in y direction
    SLuint   _samples;  //!< No. of samples = samplesX x samplesY
    SLVVec2f _points;   //!< samplepoints for distributed tracing
};
//-----------------------------------------------------------------------------
#endif