Stages of developing the ray tracer

Setting up the scene

Setting up the camera, entity, sphere and other classes

Checking if your set up is correct

The World class(all data wrt world)

Taking a snap shot (from camera, implementing intersection check in the world class)

Introducing Light

Basic

Super Sampled

Ashikimin Shirley

nu, nv = 10, 10

nu, nv = 100, 10

with capped irradiance instead

nu, nv = 100, 100

Higher Rd values

Light Fallout with distance squared

Refraction

Softer shadows for transmissive objects…

Reflection

KD Tree

Tone Mapping

Ward with bulb luminance 50

Ward with bulb luminance 100

Reinhard

light source luminance : 500

mid tone luminance set explicitly to 1

mid tone is the luminance value at pixel 200, 300