Limitless Engine is a 3D graphics engine, focused on high-performance, low-overhead rendering with modern OpenGL & C++17.

OpenGL state caching for reducing driver overhead
Multithreaded OpenGL context resource sharing
Shader Compiler & Shader Program introspection
Indexed buffers automatic binding
Textures automatic binding
Texture Compression support
Time queries
Buffer data streaming: Orphaning, Unsynchonized, Persistent, Coherent, TrippleBuffering, Explicit synchronization
Extension support:
- GL_ARB_buffer_storage
- GL_ARB_direct_state_access
- GL_ARB_shader_storage_buffer_object
- GL_ARB_shading_language_420pack
- GL_ARB_explicit_uniform_location
- GL_ARB_tessellation_shader
- GL_ARB_program_interface_query
- GL_ARB_texture_storage
- GL_ARB_bindless_texture
- GL_EXT_texture_filter_anisotropic
- GL_EXT_texture_compression_s3tc
- GL_ARB_texture_compression_bptc
- GL_ARB_texture_compression_rgtc

lighting.mp4

lighting1.mp4

Lit, unlit shading models
Base color (scalar, texture)
Metallic (scalar, texture)
Roughness (scalar, texture)
Refraction
Normal
Emissive color
Emissive mask
Blend mask
Ambient occlusion
Transparency: Translucent, Additive, Modulate
Material layering
Custom materials via GLSL snippets that allow you to create whatever material you want
All properties are run-time changeable

Build

This project requires C++17 compiler and CMake.

After cloning this Git repo, initialize its Git submodules, which contain 3rd party dependencies and build glew extensions:

git submodule init
git submodule update
cd thirdparty/glew
make extensions

mkdir build && cd build
cmake ..
make -j12 limitless-materials limitless-effects limitless-lighting