Image-Based Lighting

Computer Graphics · Real-Time Shading · also: IBL, Environment lighting · image-based-lighting.yaml

Uses a captured or rendered environment map as the light source, so that ambient light carries the colour and directionality of a real location.

• supersedescorrects · extends
• classifiesspecializes · part-of
• substitutes forapproximates · alternative-to
• depends onrequires · validates

Colour is the family; a dashed line is the second member of it.

This node

• approximatesis a cheaper stand-in for The Rendering Equationdistant incoming radiance baked into a single map

Referenced by

• approximatesPrefiltered Environment Map is a cheaper stand-in for thisprefilter per roughness instead of sampling at runtime
• approximatesSpherical Harmonics Irradiance is a cheaper stand-in for thisnine coefficients capture all diffuse irradiance

References

• Background — Image-based lighting on Wikipedia