demotool/raymarcher.hh

#pragma once

#include "rendertarget.hh"
#include "shaders.hh"
#include "camera.hh"


struct T_Raymarcher
{
    public:
	T_Raymarcher( ) = delete;
	T_Raymarcher( T_Raymarcher const& ) = delete;
	T_Raymarcher( T_Raymarcher&& ) = delete;

	T_Raymarcher( __rd__ const uint32_t width ,
			__rd__ const uint32_t height );

	void render( );
	void makeUI( );

	T_Camera const& camera( ) const noexcept { return camera_; }
	T_Camera& camera( ) noexcept { return camera_; }

	T_Texture& output( ) noexcept { return txOutput_; }
	T_Texture& depth( ) noexcept { return txDepth_; }

    private:
	T_Camera camera_;

	//T_ShaderProgram program_;
	T_ShaderPipeline program_;

	T_Texture txOutput_ , txDepth_;
	T_Rendertarget rtOutput_;

	int rmIterations = 256;
	float rmStep = 1.2;
	float rmEpsilon = .001;
	float rmMaxDist = 250;
	float fog = .00015;
	float epsLog = log( rmEpsilon ) / log( 10 );
};