What is the difference between intensity and intensity scale in Uber Environment2

thayithayi Posts: 33
edited October 2012 in New Users

Can any one be precise in explaining

1 - The difference between Intensity and intensity scale in Uber Environment2.

2 - Max error and Max Trace distance settings and its effects in rendering

3 - is there any difference in lighting/ lights effects if i Increase the size of Uber environments (i.e., sphere size from default scale 100% to 1000% or more


tnks

Post edited by thayi on

Comments

  • RedHeadLilithRedHeadLilith Posts: 0
    edited December 1969

    try reading Adam tutorial here
    it explain all this things

  • SzarkSzark Posts: 8,794
    edited December 1969

    and http://www.omnifreaker.com/index.php?title=UberEnvironment

    I can answer question 3. The sphere is just a visual representation it has no bearing on the light at all. So scaling will not do anything. I generally hide the sphere in the Scene Pane.

  • RedHeadLilithRedHeadLilith Posts: 0
    edited December 1969

    Szark said:
    and http://www.omnifreaker.com/index.php?title=UberEnvironment

    I can answer question 3. The sphere is just a visual representation it has no bearing on the light at all. So scaling will not do anything. I generally hide the sphere in the Scene Pane.

    thanks for the extra info Szark :)

  • JaderailJaderail Posts: 0
    edited December 1969

    Actually when Mapped you can see where the light will be the strongest by looking at the image on the sphere. You can then rotate the sphere and have the light fall where you want.

  • GeddGedd Posts: 2,473
    edited October 2012

    Which is why I shrink the sphere down to somewhere between beach ball and soccer ball size :)

    There's no way to set that as default is there?

    Post edited by Gedd on
  • mjc1016mjc1016 Posts: 7,852
    edited December 1969

    Gedd said:
    Which is why I shrink the sphere down to somewhere between beach ball and soccer ball size :)

    There's no way to set that as default is there?

    Other than editing the actual files for it...no. The size of the sphere is 'hard coded' into it.

  • thayithayi Posts: 33
    edited December 1969

    thanks very much for your replies.

    read ADAM's tutorial already, but I could not find solution for my 1st point.

    I could understand the "intensity" setting i.e by increasing or decreasing the % value the light intensity/strength varies.

    ++++

    what about the ' intensity scale', by changing the % value, which lights intensity scale effected.

    In omnifreaker tutorial page its Description says only ' Light intensity multiplier '

    under what circumstances we should increase or decrease the value of 'intensity scale'

    hope u understand my question

    thanks

  • Richard HaseltineRichard Haseltine Posts: 19,946
    edited December 1969

    mjc1016 said:
    Gedd said:
    Which is why I shrink the sphere down to somewhere between beach ball and soccer ball size :)

    There's no way to set that as default is there?

    Other than editing the actual files for it...no. The size of the sphere is 'hard coded' into it.

    No reason you shouldn't simply shrink (or remove) the sphere and save the result as a scene subset file - that's what the initial load is.

  • SzarkSzark Posts: 8,794
    edited December 1969

    I must admit the Intensity scale has alluded me, well the reason it is there has. It did some tests a while a go and to be honest from a Viewport difference I see no difference in render, as shown below. What I mean about seeing the difference in the viewport is that when you adjust the Light Intensity you see a visual difference in light in the scene. When adjusting the scale you don't see a change.

    These 4 images are just made up of 3 primitives and Uber Outdoor Preset at the highest quality preset. Render quality low for quick rendering. As you can see the is no difference between the two pairs of images. I can use IrFanView to view image and I go flip back and forth and I see now change what so ever.

    This is why I have no idea why it is there and have been searching for the answer for a while. :)

    UberScale200Scale.jpg
    711 x 800 - 167K
    UberScale50intens.jpg
    711 x 800 - 247K
  • RedHeadLilithRedHeadLilith Posts: 0
    edited December 1969

    Have you tried running this tests combined with other lights, changing only the intensity scale of the light?
    I noticed that if the intensity of the light set to 45 and intensity scale set to 0% will make the render look more dark ,so in daz studio 4.5 I do see different result when changing the intensity scale .

  • SzarkSzark Posts: 8,794
    edited December 1969

    No adding another light source would deteat the purpose and not give the a clear indication on what Intensity Scale is for, that is why I didn't put another light in. Adjusting the scale won't effect other lights in the scene so I can't see it making any difference..

    Also using an Intensity scale of 0% effectively turns off the light. I just tested it and it rendered totally black.

  • omnifreakeromnifreaker Posts: 0
    edited December 1969

    Final light color = Color * Intensity * IntensityScale.

    Yes, it is a little redundant, but the main reason for the adding the control was to more easily allow for intensities > 1.

  • SzarkSzark Posts: 8,794
    edited December 1969

    Thank you omnifreaker for confirming that.

    My advice is anything lower than 100% intensity use the to main Intensity slider. The Intensity scale is handy when or if the need arsies to go above 100% intensity without blowing out the scene with light while building it.. ;)

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