asdlei99 / SoftGLRender

Tiny C++ Software Renderer / Rasterizer

SoftGLRender

Tiny C++ Software Renderer/Rasterizer, it implements the main GPU rendering pipeline, 3D models (GLTF) are loaded by assimp, and using GLM as math library.

Features

• Wireframe
• View Frustum culling
• Back-Front culling
• Orbit Camera Controller
• Perspective Correct Interpolation
• Reversed Z
• Early Z
• Tangent Space Normal Mapping
• Basic Lighting
• Blinn-Phong shading
• PBR & IBL shading
• Skybox CubeMap & Equirectangular
• Texture mipmaps
• Texture tiling and swizzling (linear, tiled, morton)
• Texture filtering and wrapping
• Shader varying partial derivative dFdx dFdy
• Alpha mask & blend

Texture Filtering

• NEAREST
• LINEAR
• NEAREST_MIPMAP_NEAREST
• LINEAR_MIPMAP_NEAREST
• NEAREST_MIPMAP_LINEAR
• LINEAR_MIPMAP_LINEAR

Texture Wrapping

• REPEAT
• MIRRORED_REPEAT
• CLAMP_TO_EDGE
• CLAMP_TO_BORDER
• CLAMP_TO_ZERO

Texture Fetch

• Lod
• Bias
• Offset

Anti Aliasing

• SSAA
• FXAA

TODO

• MSAA\TAA
• Shadow Map

Showcase

Render Textured

• BoomBox (PBR)

• Robot

• DamagedHelmet (PBR)

• GlassTable

• AfricanHead

• Brickwall

• Cube

Render Wireframe

Check "show clip" to show the triangles created by frustum clip

Dependencies

• GLM
• json11
• stb_image
• assimp
• imgui

Clone

git clone [e-mail]:keith2018/SoftGLRender.git
cd SoftGLRender
git submodule update --init --recursive

Build

mkdir build
cmake -B ./build -DCMAKE_BUILD_TYPE=Release
cmake --build ./build --config Release

Run

cd bin/Release
./SoftGLRender

License

This code is licensed under the MIT License (see LICENSE).