Outline.h

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#pragma once
 
#include <string>
 
namespace eve::graphics {
 
class Canvas;
class Graphics;
class Shader;
class Texture;
 
class Outline {
public:
    explicit Outline(Graphics *gfx);
    ~Outline();
 
    Outline(const Outline &) = delete;
    Outline &operator=(const Outline &) = delete;
 
    void setColor(float r, float g, float b);
    float getColorR() const;
    float getColorG() const;
    float getColorB() const;
 
    void setWidth(float width);
    float getWidth() const;
 
    void setDepthThreshold(float threshold);
    float getDepthThreshold() const;
 
    void setDepthSensitivity(float sensitivity);
    float getDepthSensitivity() const;
 
    void setNormalThreshold(float threshold);
    float getNormalThreshold() const;
 
    void setSoftness(float softness);
    float getSoftness() const;
 
    void setClip(float nearZ, float farZ);
 
    bool hasParam(const std::string &name) const;
    void setFloat(const std::string &name, float value);
    float getFloat(const std::string &name) const;
 
    bool apply(Graphics *gfx, Texture *hwDepth, Texture *worldNormal);
    bool applyTo(Graphics *gfx, Texture *hwDepth, Texture *worldNormal, Canvas *dest);
 
    Shader *getShader() const { return shader_; }
 
private:
    void uploadCommon(Graphics *gfx, Texture *hwDepth);
 
    Graphics *gfx_ = nullptr;
    Shader *shader_ = nullptr;
    float nearZ_ = 0.1f;
    float farZ_ = 100.f;
    float colorR_ = 0.05f;
    float colorG_ = 0.04f;
    float colorB_ = 0.07f;
    float width_ = 1.f;
    float depthThreshold_ = 0.3f;
    float depthSensitivity_ = 0.f;
    float normalThreshold_ = 0.35f;
    float softness_ = 0.15f;
};
 
}  // namespace eve::graphics