Looking into light instancing, rendering 1 frame was pretty heavy even when using MPR. It was grainy in MPR but the quality was much better when using PBR.
I believe it is due to all the instanced geolights with raytrace shadow that's making it all slow. Circusmonkey on forum had a scene setup with the same instancing method, the difference was he used shader for illumination and had a HDA that randomizes the Cf output of the shader.
Examined his file, the render times were in seconds, felt it was a much more efficient way of achieving the same effects.
Here's his post although it was back in August 2010, http://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=20446&highlight=light+instance
I believe it is due to all the instanced geolights with raytrace shadow that's making it all slow. Circusmonkey on forum had a scene setup with the same instancing method, the difference was he used shader for illumination and had a HDA that randomizes the Cf output of the shader.
Examined his file, the render times were in seconds, felt it was a much more efficient way of achieving the same effects.
Here's his post although it was back in August 2010, http://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=20446&highlight=light+instance
Could only see the lights that were close to the wall on the first test, this time i copied tubes to see the effects of the lights better.
PBR produces nice results with the expense of render time. And threw in the mandril image for fun.
PBR produces nice results with the expense of render time. And threw in the mandril image for fun.
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