Ray Tracing vs. Path-Tracing: 

Full Comparison

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Ray Tracing

What is it? An advanced and realistic method of creating light and shadows in a scene that creates more realistic scenes Games that Use the Technology: 250 Conceived: 1969 Invented by: Albrecht Dürer

Path Tracing

What is it? A Monte Carlo technique used in computer graphics to produce three-dimensional scenes with accurate global illumination, improving the quality of videos and pictures Games that Use the Technology: N/A Conceived: 1986 Invented by: James Kajiya

Ray Tracing vs. Path Tracing: Must-Know Facts

In ray tracing, each ray is tracked back to one or more light sources by computing its precise path of reflection or refraction.

1

Path tracing generates several rays for each pixel, but they bounce off in arbitrary directions.

2

Ray tracing shoots one ray from each pixel. Path tracing doesn’t send one ray but tens, hundreds, or thousands of each pixel rendered.

3

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