Screen space reflection

This code repository is an implementation of screen space reflection technique on modern OpenGL;

Platforms

• Linux
• Win

Requirements

These are the base requirements to build

• Cmake
• A C++17-standard-compliant compiler
• GLFW3
• OpenGL4 or higher support
• GLM

Installing

   chmod u+x build.sh
   ./build.sh

How to use

After code compilation, there will be "bin" folder, executive file in this folder as well as all textures, shaders and objects

To run code just run binary file

Current solution based on ImGUI library(they are amazing).

Key	Purpose	Default Value
Enable SSR	Turn on/off reflections	True
Distance bias	Distance difference from which we will think that there is intersection	0.03
rayStep	Step length + coefficient for adaptive step	0.1
Iteration count	Amount of steps in ray marching	100
Enable exp step	Enabling exponential step for marching	False
Enable adaptive step	Enabling step that should improve quality	True
Enable binary step	Enabling binary step, should be a bit better than adaptive	False
Enable sampling	Enabling additional sampling to improve quality	False
Sample Count	Amount of additional rays(shows only with enabled sampling). Computational heavy	4
Sampling coefficient	Factor to addition to base direction(smaller closer to initial ray)	0.001
Debug draw	Enabling debug draw to show reflection position	False
Reload SSR	Reloading shader in runtime

So just start program with these keys

Examples

Authors

• Daniil Smolyakov - Initial work - DanonOfficial
• Lcbx - binary step and debug draw - Lcbx

License

This project is licensed under the MIT License - see the LICENSE.md file for details