Unconfigured Ad Widget

تقليص

إعـــــــلان

تقليص
لا يوجد إعلان حتى الآن.

Rendering with mentalray ....

تقليص
X
 
  • تصفية - فلترة
  • الوقت
  • عرض
إلغاء تحديد الكل
مشاركات جديدة

  • Rendering with mentalray ....

    hi friend
    i would like to make this thread for rendering
    and its technics


    first of all you musttttt read this thread
    Vray-like with mentalray


    this was may first test after i read that thread




    it need alot of work in texturing and alot of tweaking in
    rendering


    the model from archinteriors

    so lets do good rendering stuff and lets share the knowledge
    with each other


    there is alot of subject we need to study
    so if anybody understand it lets share it
    with each other.
    and if no one know itt ...!! soo lets search for it
    and help each other

    lets goooo
    Hazem M. Sabry
    VFX Artist
    MBC Creative Service
    ===========
    www.hmsabryworks.com
    Voxel Works - My Tutorials Page

  • #2
    i've explain it before but i copy it here
    to the render thread

    Anti-Aliasing




    *i made the square noisy to see the pixels


    your image contains alot of pixels, this pixel carries the RGB color.
    look closely to the edge of the square... you will see it sharp
    because of the square's edges go strait with pixels

    but when you draw a line which is not strait
    the line will pixellate like this...


    *with zoom

    so if we need the edge go sharp so we need to add more pixels
    to decrease this pixelation




    3D World
    in 3d we have the anti-aliasing
    this is the process which we decide for how much pixels will be added.

    we have 2 deferent ways in AA (Anti-Aliasing)
    * Fixed samples
    * Adaptive samples

    Fixed samples.... you are tilling maya that i want you to raise the pixels
    in all over the image whether there is a curve needs pixels or there is not...!! (Solid color)
    and thats toooooooooooo much money

    But Adaptive samples.... you are tilling maya that i want you to raise the
    pixels at the places that needs more pixels... (at curves)




    as shown above the pixelated edge for the low samples

    with adaptive samples you determine the min. and the max. values for
    the samples ..(min=at least add pixels with this rate, max=add pixles
    but dont go high than this rate)


    *the black grid this is the pixels

    there is an Under Sampling and Over Sampling

    over sampling means that the pixel subdivide.
    0= 1 subdivision inside the pixel one time
    1= 2 subdivision ....
    and so on...

    and under sampling that means combines more one
    pixel in one sample ...
    -1= combine 4 pixels
    -2= combine 8 pixels
    and so on....

    so there must be a minimum and maximum value for sampling
    like -2,0 -1,1 0,2 ... and so on......

    Hazem M. Sabry
    VFX Artist
    MBC Creative Service
    ===========
    www.hmsabryworks.com
    Voxel Works - My Tutorials Page

    تعليق


    • #3


      so the adaptive sampling we add more pixels
      at places that needs more pixels... and the places that doesnt
      need more pixels we never add pixels,

      so...
      there is very important thing in maya and there is very very few
      people that use it ... samples Diagnose

      samples diagnose show you the way that the samples spread in
      the image


      *to activate the sample diagnose ... go to render global > Diagnostic > (chick samples)...


      as you can see...
      in samples -2,0 the samples (white dots) has been spread in a wide range
      and by raising the sample bit by bit the samples is pushed into the edges
      and if you see the render you will find the edge go sharp because the
      edges has more more pixels to smooth
      but in -2,0 the samples has been wasted in the image so the edge is
      pixelated....

      ok



      Hazem M. Sabry
      VFX Artist
      MBC Creative Service
      ===========
      www.hmsabryworks.com
      Voxel Works - My Tutorials Page

      تعليق


      • #4
        yeah , hazem your link is soo powerful

        , and here is another link
        http://www.mymentalray.com/mymr_tutorials/tutorials.htm
        http://maxforums.net/showthread.php?t=99358&page=7

        تعليق


        • #5
          ok guys we moved test from the compositing workshop to here

          here is the link again
          http://www.treddi.com/forum/index.ph...opic=8436&st=0

          so let's start and make it great place to share knowledge
          http://maxforums.net/showthread.php?t=99358&page=7

          تعليق


          • #6
            here is my test , only with DGS

            http://img152.imageshack.us/img152/1...ntest01kg4.jpg
            http://maxforums.net/showthread.php?t=99358&page=7

            تعليق


            • #7
              another test , it's


              http://img84.imageshack.us/img84/207...ntest03ri6.jpg

              i just rise up the filter from 1 to 2
              http://maxforums.net/showthread.php?t=99358&page=7

              تعليق


              • #8
                what about the Radius of the Fg
                min. and the max.


                still you have a splotches in the top corner
                you need to reestimate the radius to avoid the
                splotshes...

                and try to raise the fg rays
                Hazem M. Sabry
                VFX Artist
                MBC Creative Service
                ===========
                www.hmsabryworks.com
                Voxel Works - My Tutorials Page

                تعليق


                • #9
                  here is a another one i fix the shadow , i do that by rise up the shadow rays

                  http://img508.imageshack.us/img508/1...ntest04jd6.jpg
                  http://maxforums.net/showthread.php?t=99358&page=7

                  تعليق


                  • #10
                    very good ya hany
                    Hazem M. Sabry
                    VFX Artist
                    MBC Creative Service
                    ===========
                    www.hmsabryworks.com
                    Voxel Works - My Tutorials Page

                    تعليق


                    • #11
                      hazem please can you show us how we can use diagnostic with final gathering
                      , and how it can help us to setup Min\Max radius to get the most accurate result
                      http://maxforums.net/showthread.php?t=99358&page=7

                      تعليق


                      • #12
                        كان عندي سوال اذا كان في الموقع او موقع اخر تعليم المنتل ري باحتراف اذا كان متوفر هل بالامكان ان تدلونا عليها وجزاك الله خير
                        Do Not Give Up
                        You are going to make it!
                        YOu are going to make it!

                        Do not, I repeat do not give up,
                        now that you stand on the brink of a breakthrough!

                        Be very careful; Make sure of every step you take.
                        This day is made just for you!
                        You are going to make it today!

                        تعليق


                        • #13
                          Thanks alot

                          تعليق


                          • #14
                            المشاركة الأصلية بواسطة ALqursan2 مشاهدة المشاركة
                            كان عندي سوال اذا كان في الموقع او موقع اخر تعليم المنتل ري باحتراف اذا كان متوفر هل بالامكان ان تدلونا عليها وجزاك الله خير
                            as hany said mymentalray
                            and see the link that i send (vray-like)
                            Hazem M. Sabry
                            VFX Artist
                            MBC Creative Service
                            ===========
                            www.hmsabryworks.com
                            Voxel Works - My Tutorials Page

                            تعليق


                            • #15
                              i recommend that you see the digital tutors mentalray
                              cds

                              its very good ... have a look
                              Hazem M. Sabry
                              VFX Artist
                              MBC Creative Service
                              ===========
                              www.hmsabryworks.com
                              Voxel Works - My Tutorials Page

                              تعليق

                              يعمل...
                              X