Check the flat qualifier from the correct member

[libs/gl.git] / source / effects / environmentmap.h

diff --git a/source/effects/environmentmap.h b/source/effects/environmentmap.h
index db97d1d80040a3c9749129e076789ef8c9efc9fd..9ef0e87d87a599fa8632a45234b8d3de6a3f0b95 100644 (file)
--- a/source/effects/environmentmap.h
+++ b/source/effects/environmentmap.h
@@ -1,55 +1,121 @@
 #ifndef MSP_GL_ENVIRONMENTMAP_H_
 #define MSP_GL_ENVIRONMENTMAP_H_
 
+#include <vector>
 #include "camera.h"
 #include "effect.h"
 #include "framebuffer.h"
-#include "matrix.h"
 #include "programdata.h"
-#include "renderbuffer.h"
+#include "texture2d.h"
 #include "texturecube.h"
-#include "vector.h"
 
 namespace Msp {
 namespace GL {
 
-class Resources;
+class Mesh;
+class Sampler;
 
 /**
-Creates a cube map texture of the surroundings of the renderable.  This texture
-can then be used to implement effects such as reflections or refractions.
+Creates a cube map texture of the surroundings of the content renderable, for
+use in image-based lighting.  Also called a light probe.
 
-If the EnvironmentMap is used in a Pipeline, it's worth noting that the cube
-map will be prepared outside of any rendering pass.  It's recommended to use
-another Pipeline to define which passes should be used to render the
-environment.
+The cube map can optionally be prefiltered for varying amounts of roughness.
+An irradiance map for diffuse lighting is also created.
+
+The EnvironmentMap won't be rendered inside its own environment.  This avoids
+artifacts if one is used to create reflections on a complex object.
+
+The shader fragment common.glsl provides interfaces to access the environment
+data.
 */
 class EnvironmentMap: public Effect
 {
-private:
+public:
+       struct Template: Effect::Template
+       {
+               class Loader: public DataFile::DerivedObjectLoader<Template, Effect::Template::Loader>
+               {
+               private:
+                       static ActionMap shared_actions;
+
+               public:
+                       Loader(Template &, Collection &);
+               private:
+                       virtual void init_actions();
+
+                       void fixed_position(float, float, float);
+               };
+
+               unsigned size = 512;
+               PixelFormat format = RGBA16F;
+               std::string environment_name;
+               unsigned roughness_levels = 5;
+               Vector3 fixed_position;
+               bool use_fixed_position = false;
+               float near_clip = 0.1f;
+               float far_clip = 100.0f;
+
+               virtual EnvironmentMap *create(const std::map<std::string, Renderable *> &) const;
+       };
+
+protected:
+       struct Face
+       {
+               Framebuffer fbo;
+               Camera camera;
+       };
+
        unsigned size;
        Renderable &environment;
        TextureCube env_tex;
-       Renderbuffer depth_buf;
-       Framebuffer fbo[6];
+       Texture2D depth_buf;
+       Face faces[6];
+       Vector3 fixed_position;
+       bool use_fixed_pos = false;
+
+       TextureCube irradiance;
+       const Program &irradiance_shprog;
+       Framebuffer irradiance_fbo;
+       const Program &specular_shprog;
+       std::vector<Framebuffer> specular_fbos;
+       ProgramData prefilter_shdata;
+       const Mesh &fullscreen_mesh;
+
        const Sampler &sampler;
-       Camera camera;
-       mutable ProgramData shdata;
-       bool rendered;
-       unsigned update_interval;
-       unsigned update_delay;
+       const Sampler &mip_sampler;
+       ProgramData shdata;
+       bool rendered = false;
+       bool in_setup_frame = false;
+       unsigned update_interval = 1;
+       unsigned update_delay = 0;
 
 public:
-       EnvironmentMap(Resources &, unsigned size, Renderable &rend, Renderable &env);
+       EnvironmentMap(unsigned size, PixelFormat, Renderable &content, Renderable &env);
+
+       /** Creates an EnvironmentMap with prefiltering for varying amounts of
+       roughness.  Levels specifies the number of prefilter mipmap levels and must
+       be valid for the size. */
+       EnvironmentMap(unsigned size, PixelFormat, unsigned levels, Renderable &content, Renderable &env);
+
+       /** Sets a fixed position to render the environment map from.  This can be
+       useful if the content renderable does not have a model matrix. */
+       void set_fixed_position(const Vector3 &);
 
        void set_depth_clip(float, float);
+
+       /** Sets the interval in frames between environment map updates.  A value of
+       0 means an update is only done when manually requested. */
        void set_update_interval(unsigned);
+
+       /** Request that the environment map is updated on the next frame. */
        void queue_update();
 
        virtual void setup_frame(Renderer &);
        virtual void finish_frame();
 
-       virtual void render(Renderer &, const Tag & = Tag()) const;
+       virtual void render(Renderer &, Tag = Tag()) const;
+
+       virtual void set_debug_name(const std::string &);
 };
 
 } // namespace GL