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GLFramework

Work in this repository has been discontinued. The project lives on in a new repository, as it has been merged with my planet renderer: https://github.com/Illation/ETEngine

Framework using opengl to later use for personal projects

Acknowledgments

Currently used libraries: SDL2, GLM, DevIL, stb_image, GLAD and Assimp

for library licenses see Library Licenses.md

Structure inspired by the OverlordEngine from Digital Arts and Entertainment

Features:

  • Basic Physically Based Rendering
  • HighDynamicRange Environment maps
  • Image Based Lighting
  • Deferred and Forward rendering
  • Lights rendered as Light Volumes
  • Cascaded Shadow Maps
  • Bloom with texture downsampling
  • Frustum Culling
  • Text Rendering
  • Stereoscopic Normal map encoding and decoding for optimal use of G-Buffer
  • Buffer Display mode
  • Scenegraph Entity Hirachy
  • Entity Component System
  • Singleton Pattern for things like WINDOW, INPUT, TIME, CAMERA etc
  • Observer Pattern for input
  • Factory Pattern for Content Managment
  • Mesh Filter -> Vertex buffer building depending on material needs

G-Buffer Layout

R Channel G Channel B Channel A Channel
Position .x Position .y Position .z AO .x
Normal .x Normal .y Metalness.x Specular .x
BaseColor.r BaseColor.g BaseColor.b Roughness.x

Demo Video

Link

Screenshots:

Combined buffer

alt text alt text

IBL

alt text

Roughness

alt text

Spamming point lights

alt text alt text

Buffer display mode

alt text

Legacy Shader:

For comparison of rendering quality between Legacy (Blinn-Phong Shading) and PBR alt text

About

Discontinued OpenGL graphics framework. See https://github.com/Illation/ETEngine

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