Graphics Effects

  • Drawing Lines is Hard

    Summarizes the problem of GPU line primitives and explores a few different techniques for 2D and 3D triangulated line rendering, and accompany each with a small canvas demo.

    • article
    • GLSL
  • Learn OpenGL: Shadow Mapping

    Basic tutorial on shadow mapping

    • tutorial
    • c++
    • GLSL
  • Instanced Line Rendering Part I

    Builds on the foundation from "Drawing Lines is Hard" and uses instance rendering to draw lines

    • article
    • GLSL
    • JavaScript
  • Instanced Line Rendering Part II: Alpha blending

    Continues instanced line rendering, introducing alpha-blending for triangulated lines.

    • article
    • GLSL
    • JavaScript
  • Experiments in Hybrid Raytraced Shadows

    Explores combining rasterization and ray tracing for shadow rendering

  • John Chapman SSAO Tutorial (2013)

    A tutorial on implementing SSAO

    • article
  • Learn OpenGL guest article: Cascaded Shadow Mapping

    Learn OpenGL guest article on cascaded shadow mapping, which resolves the resolution issues of the naive shadow mapping

    • article
    • GLSL
  • Percentage-Closer Soft Shadows

    NVIDIA paper introducing Percentage-Closer Soft Shadows (PCSS), based on shadow mapping and percentage‐closer filtering (PCF)

    • paper