Update README.md

Author: TolyaTalamanov

README.md

@@ -1 +1,33 @@
 # Raytracer
+
+Simple C++ Raytracer parses [Wavefront](http://paulbourke.net/dataformats/obj/) format and uses the [Phong Reflection model](https://en.wikipedia.org/wiki/Phong_reflection_model) to render the scene.
+
+## Supported features
+* Reflection / Refraction
+* Textures
+
+## How to build
+1. Clone the project with submodules
+```
+git clone https://github.com/TolyaTalamanov/Raytracer
+git submodule update --init --recursive
+```
+2. Go to project folder and run CMake:
+```
+cd Raytracer && mkdir build
+cmake ../ -DCMAKE_BUILD_TYPE=Debug
+```
+3. Build with make:
+```
+make -j32
+```
+
+### How to run
+1. Run the tests:
+```
+./bin/raytracer-tests
+```
+2. Run tool:
+```
+./bin/raytracer-tool <path-to-obj-file>
+```