- As part of the effort to get myself familiar with Vulkan, I developed a real-time renderer featuring global illumination with RTX technique 1. Aside from Dynamic Diffuse Global Illumination (DDGI) 2, ray-traced soft shadow and specular reflections with spatio-temporal denoising (SVGF 3), I've also tried out some other …
Read More - For visibility buffer rendering 1 2, we cannot rely on the hardware rasterization and built-in functions in fragment shader to do the vertex attribute interpolation and implicitly compute partial derivatives (i.e.
dFdx
anddFdy
in glsl). This article describes the math behind a simple way to analytically compute these …
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