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#pragma once
#include "gfx/gl/camera.h"
#include "gfx/gl/program.h"
#include "gfx/gl/sceneShader.h"
#include "lib/glArrays.h"
#include <functional>
#include <glm/fwd.hpp>
class SceneRenderer {
public:
class SceneProvider {
public:
virtual ~SceneProvider() = default;
virtual void content(const SceneShader &) const = 0;
virtual void environment(const SceneShader &, const SceneRenderer &) const;
};
explicit SceneRenderer(glm::ivec2 size, GLuint output);
void render(const SceneProvider &) const;
void setAmbientLight(const glm::vec3 & colour) const;
void setDirectionalLight(const glm::vec3 & colour, const glm::vec3 & direction) const;
Camera camera;
private:
glm::ivec2 size;
GLuint output;
glFrameBuffer gBuffer;
glTexture gPosition, gNormal, gAlbedoSpec, gIllumination;
glRenderBuffer depth;
class DeferredLightProgram : public Program {
public:
using Program::Program;
using Program::use;
};
class DirectionalLightProgram : public Program {
public:
DirectionalLightProgram();
using Program::use;
void setDirectionalLight(const glm::vec3 &, const glm::vec3 &) const;
private:
RequiredUniformLocation directionLoc, colourLoc;
};
DeferredLightProgram lighting;
DirectionalLightProgram dirLight;
glVertexArray displayVAO;
glBuffer displayVBO;
SceneShader shader;
};
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