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Lighting & Rendering

PatroklosPatroklos Posts: 533
edited December 1969 in New Users

Having run into problems by trying to jump in without learning the basics, I am surprised at how different the final render can be by simply changing from Ray Traced to Deep Shadow Mapped shadows. Its worth comparing one to the other to ensure that you are getting the result closest to your requirements.

Comments

  • Herald of FireHerald of Fire Posts: 3,504
    edited December 1969

    Raytraced is recommended for almost everything. Deep Shadow mapping is a fairly old technology now and can sometimes give artefacts and other undesirable issues.

  • PatroklosPatroklos Posts: 533
    edited December 1969

    Yes, however in the two renders the Deep Shadow Mapping gave a quite different look, which might conceivably be what artist is looking for, and it is also interesting to compare.

    I note that you use Luxus, is that all the time?

    What advantages/disadvantages does it offer compared to 3Delight?

  • mark128mark128 Posts: 1,029
    edited December 1969

    Deep shadow maps is a technology designed to speed up renders I believe. Unfortunately, there is a bug in 3Delight (and perhaps all RenderMan engines) that can produce firefly like effects in the render. This bug has been around for a long time. It appears to be a fundamental problem and probably unfixable.

    For this reason most people don't use deep shadow mask lights.

  • PatroklosPatroklos Posts: 533
    edited December 1969

    mark128 said:
    Deep shadow maps is a technology designed to speed up renders I believe. Unfortunately, there is a bug in 3Delight (and perhaps all RenderMan engines) that can produce firefly like effects in the render. This bug has been around for a long time. It appears to be a fundamental problem and probably unfixable.

    For this reason most people don't use deep shadow mask lights.

    Thank you for that information.

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