79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
#ifndef LIGHT_H
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#define LIGHT_H
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#include <glm/vec3.hpp>
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#include <glm/mat4x4.hpp>
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#include <string>
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#include "camera.h"
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class FrameBuffer;
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class Shader;
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class Scene;
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class Texture;
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class Light : public Camera
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{
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public:
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enum LightType {
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DIRECTIONNAL,
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POINT,
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SPOT
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};
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enum LightFlags {
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AMBIENT_FLAG,
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DIRECTIONNAL_FLAG,
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POINT_FLAG,
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SPOT_FLAG,
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SHADOWMAP_FLAG,
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NB_LIGHT_FLAGS
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};
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static const char* flagStr[];
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Light();
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void initDirectionnalLight(glm::vec3 dir = glm::vec3(1, 0, 0), glm::vec3 lightColor = glm::vec3(1));
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void initPointLight(glm::vec3 pos = glm::vec3(0), glm::vec3 lightColor = glm::vec3(1));
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void initSpotLight(glm::vec3 pos = glm::vec3(0), glm::vec3 dir = glm::vec3(1, 0, 0), float spotAngle = 360, glm::vec3 lightColor = glm::vec3(1));
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bool isDirectionnal();
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LightType getType() {return type;}
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glm::vec3 getDir() {return direction;}
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glm::vec3 getPos() {return position;}
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glm::vec3 getColor() {return color;}
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bool isShadowCaster() {return shadowCaster;}
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void initShadowMap(int resWidth, int resHeight);
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void generateShadowMap(Scene* scene);
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Texture* getShadowMap();
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// camera inheritance
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virtual glm::mat4 getProjectionMatrix() {return projectionMatrix;}
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virtual glm::mat4 getViewMatrix() {return viewMatrix;}
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// does nothing, just required for inheriting Camera
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virtual void resize(int width, int height) {}
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static unsigned int getFlags(Light* l);
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private:
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// standard attributes
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LightType type;
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glm::vec3 position;
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glm::vec3 direction;
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float cutOffAngle;
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float attenuation;
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glm::vec3 color;
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bool isDir;
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// shadowmap attributes
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bool shadowCaster;
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FrameBuffer* shadowMap;
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Shader* shaders[2];
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glm::mat4 viewMatrix;
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glm::mat4 projectionMatrix;
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static const char* vertSource;
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static const char* fragSource;
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};
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#endif // LIGHT_H
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