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Ben M. Andrew

Graphics Rejects

May 18, 2019

Various mistakes I’ve made while working on graphics projects.

Ray tracer skipping rays
Bilinear interpolation for upscaling
Out of range brightness leading to undefined behaviour
Undefined behaviour
Undefined behaviour
Undefined behaviour
Undefined behaviour
Undefined behaviour
Bounce rays self-intersecting
Reflection rays self-intersecting
Bounce rays self-intersecting
Spatial partitioning error
Spatial partitioning error
No fresnel on bounce rays
Narrow choke on fresnel
Undefined behaviour
Noisy gloss reflections
Even noisier gloss reflections
Rendering quads as triangles
Camera inside object
Camera inside object
Triangles behind camera backplane
Wrong reflection ray direction
Wrong backface culling
Wrong lighting direction
Wrong normal ray direction for spheres
Wrong refraction rays through sphere