Faster Unbiased Engine (TR1)
Thursday, 02 December 2010 08:58

Difficult indirect lighting scene with emitter blocked and light reaching the view through small holes. :: Scene by Claudio Pilustrelli.  Rendered with enhanced TR1+ (10m, single thread, dual core 1.66Ghz).

In the previous weeks, we worked hard to make unbiased engine TR1 even more powerful for indirect lighting cases. The result of our deep research, testing and development is the evolution of TR1 (codenamed "TR1+" in our interior builds) into a method that manages extremely well under indirect lighting conditions, while keeping 100% its power in exteriors and direct lighting.

As a result, "TR1+" is able to handle much better dark areas in your renders, that "traditionally" take more time to resolve. This way, it delivers a more balanced noise and an image that overall converges faster. For exteriors and dominant direct lighting scenes the performance is the same as before, but in more difficult cases, like interiors lit by sun-sky, TR1+ is a clear winner. We estimate that the efficiency improvement can be up to 70%!

Forum Post

Comparison of standard TR1 and enhanced TR1+ for a church interior. :: Designed and rendered by Tomasz Marek (10m, dual core). Comparison of standard TR1 and enhanced TR1+ for a museum interior. :: Designed by Alvaro Luna Bautista and Joel Andersdon. Rendered for 15m, single thread, on i5 2.66Ghz machine. Comparison of standard TR1 and enhanced TR1+ for a kitchen interior. :: Rendered by Pete Stoppel for 18m, on i7 machine.

 

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