Introduction

The aim of this project is to create a realistic camera model in OpenGL where the camera can be defined with typical photography parameters (eg f-stop)

Compile instructions

Requirements

The following tools must be installed:

• cmake (version 3.13 or above)
• compiler with c++20 support (e.g gcc 9.2)

The following libraries must be installed:

• glfw3
• glm
• GLEW
• libPNG

In addition, a version of OpenGL 4.2 or above is needed

Compile

The following commands must be executed in order to compile the renderer using cmake

$ mkdir build
$ cd build
$ cmake ..
$ make

Usage instructions

Once it is compiled, the renderer can be executed using the following command from the project root:

$ build/TestingOpenGL <scenePath>

Where scenePath is the path of a scene (e.g assets/scene/scene_cans_with_plane.json).

The scheme of the scene descriptions files can be found in input/scene_schema.json.

While the program is running, you can switch between pinhole mode and realistic camera mode with the R key. Also, you can take a picture of the screen with the S key.

Examples

The following images have been generated using the renderer and the scene assets/scene/scene1_with_plane.json.

Command to execute it:

$ build/TestingOpenGL assets/scene/scene_cans_with_plane.json

Renders obtained:

Pinhole mode	Realistic camera f-stop 1.0	Realistic camera f-stop 2.0

Realistic camera f-stop 4.0	Realistic camera f-stop 8.0	Realistic camera f-stop 16.0