90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
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#ifndef SCENE_H
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#define SCENE_H SCENE_H
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#include <string>
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#include <map>
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#include <vector>
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#include <utility>
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#include "util/refptr.h"
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#include "util/Ray.h"
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#include "util/Color.h"
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#include "util/Material.h"
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#include "shapes/Shape.h"
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#include "Light.h"
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#include "parser/parser.h"
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#include "parser/nodes.h"
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#define SCENE_MAX_TRANSPARENT_HITS 8
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#define SCENE_TRANSPARENCY_THRESHOLD 0.01
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class Scene
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{
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public:
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/* types */
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class ShapeDistance : public std::pair<refptr<Shape>, double>
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{
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public:
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ShapeDistance(refptr<Shape> shape, double dist)
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: std::pair<refptr<Shape>, double>(shape, dist)
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{
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};
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};
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Scene(const std::map<std::string, const char *> & options,
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const char * filename);
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~Scene();
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void render();
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void setWidth(int width) { m_width = width; }
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void setHeight(int height) { m_height = height; }
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void setMultisampleLevel(int level) { m_multisample_level = level; }
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void setVFOV(double vfov) { m_vfov = vfov; }
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void setAmbientLight(const Color & al) { m_ambient_light = al; }
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Transform & getTransform() { return m_transform; }
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protected:
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/* private methods */
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void renderPixel(int x, int y, unsigned char * pixel);
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Color traceRay(const Ray & ray);
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std::vector<ShapeDistance> getRayHits(const Ray & ray);
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/* In Scene-load.cc */
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void load(const char * filename);
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void processNode(refptr<Node> node);
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void processChildren(refptr<Node> node);
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refptr<Material> processMaterial(refptr<Node> node);
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refptr<Shape> processBox(refptr<Node> node);
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refptr<Shape> processCyl(refptr<Node> node);
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refptr<Light> processLight(refptr<Node> node);
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refptr<Shape> processPlane(refptr<Node> node);
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refptr<Shape> processSphere(refptr<Node> node);
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/* rendering parameters */
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int m_width;
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int m_height;
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int m_multisample_level;
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std::string m_output_file_name;
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bool m_verbose;
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double m_vfov;
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Color m_ambient_light;
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/* private data */
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std::vector< refptr<Shape> > m_shapes;
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std::vector< refptr<Light> > m_lights;
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Transform m_transform;
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double m_view_plane_dist;
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int m_multisample_level_squared;
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double m_sample_span;
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double m_half_sample_span;
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/* framebuffer */
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unsigned char * m_data;
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};
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bool operator<(const Scene::ShapeDistance & sd1,
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const Scene::ShapeDistance & sd2);
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#endif
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