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  • Trimmed Hedge

    This is a short description on how to create a modeled hedge for closeups rather than using displacement. I hope someone finds it useful.

    Trimmed Hedge Tutorial:

    Create a box 72 x 24 x 24. Chamfer the edges 1” and then delete the faces on the bottom, but leave the chamfer.

    Model a simple leaf about an inch long and then create a very small box and move the box to the end of the leaf that will represent the stem of the leaf. Offset the box in the z direction a little or ad a little curve to your leaf so it’s not completely flat when arrayed.

    Select the small box and attach the leaf to the box. This will assure that the leaf arrays correctly in the Parray. The array will use the boxes center to array the leaves instead of the center of the leaf..

    Select the leaf and then go to Particle Systems and select Parray from the list. You need to create the icon in the scene for the Parray to start the process. Just click in the top window and drag and release to create the icon. The size does not matter.

    You will then have the option to pick the emitter in the Basic Parameters. Click on Pick Object and select the chamfered box you made. This is what the array will form to.

    Under Particle Formation select Over Entire Surface.

    Under Basic Parameters, select Mesh under Viewport Display and change Percentage of Particles to 100%.

    Under Particle Generation select Use Total and enter the number of leaves you want to create. It takes quite a few 7-10,000.

    Particle Motion parameters have to all be set to 0’s. If not, the array will not stay attached to the emitter.

    Particle Timing set to
    Emit Start = 0,
    Emit Stop = 100,
    Display until = 100
    Life = 100
    Variation = 0

    Particle Size
    Size = size of the leaf you want. I set it to 2 ½” for my 1” long leaf.
    Variation = 25% or whatever you like
    Grow for = 0
    Fade For= 0

    Particle Type choose Instanced Geometry

    Under Instancing Parameters select the Pick Object button and select the leaf you modeled


    Under Rotation and Collision.
    Spin Time = 2
    Variation = .75
    Phase = 3
    Variation = 25%
    These numbers can be changed to suit the look your going for. This is just a start.

    Under Spin Axis Controls select Random. You can also go to User Defined and enter the numbers to get the look you want.

    The rest of the settings are default. I didn’t change any others but you certainly can to get the look you want.

    Set the animation to the last frame =100 for me to create the array and render. Apply materials to the leaf. Model the bush trunk and branches.You can either hide the chamfered box or just make it non renderable in the properties rollout so it doesn’t show or create a shadow.

    You can collapse the Parray to a mesh by adding snapshot and choosing mesh. This will create a copy of the array that will be a mesh. Hide the Parray leaves and save it so you can adjust it later for differenet looks.

    Not to difficult and the results are better than displacement.





    Here is the MAX8 file
    http://www.trgraphicsdigital.com/images/test.rar

  • #2
    powerful......powerful.
    Dominique Laksmana

    Comment


    • #3
      nice tut tony
      Chris Jackson
      Shiftmedia
      www.shiftmedia.sydney

      Comment


      • #4
        hai the link dosen't work.
        and very usefull tutorial

        Comment


        • #5
          Sorry guys, I guess the server is down temporarily. I can't login to my site. Should be back up shortly.

          I've learned so much from this forum and it's outstanding members that I wanted to help if I could. I'm very happy that members are finding the tutorial and file useful.

          Tony

          Comment


          • #6
            tony, did you try this for grass?
            i think it's a little bit faster than fur... hheheh
            Dominique Laksmana

            Comment


            • #7
              hi Tony,
              i did this also with particle array,
              you opened my eyes. there are alot of things can be done
              by this particle arrays. even the grass and the stem

              Dominique Laksmana

              Comment


              • #8
                Looks great Dominique!

                Yea I agree, particles a very powerful and once you get the hang of them, there not that difficult for what we do. Keep at man, your doing great and they look fantastic!

                Tony

                P.S. It works great for hanging vines as well with curly splines for the array.

                Comment


                • #9
                  Tony, maybe we can invite everyone here to show sort of things that particle array can do.there so much things that it can do...
                  Dominique Laksmana

                  Comment


                  • #10
                    dominique- can you explain how you did the grass?
                    Chris Jackson
                    Shiftmedia
                    www.shiftmedia.sydney

                    Comment


                    • #11
                      tony, excuse me....(for using your post here to explain)
                      jacksco2,
                      (pardon me, i am not really good at explaining)
                      for the emmiter:
                      i did 1 rectangle, another rectangle inside, attached it, extrude, convert to polygon, delete all the polygon except the polygon on the top.


                      grass geometry:
                      make 1 small box 1lengthx1widthx5height (i use cm)
                      taper the box, amount -1
                      height segment =2
                      convert to polygon
                      delete all the polygon, except 1 vertical polygon.

                      particle array:
                      create particle array,
                      with this setting :



                      for the emiter, pick object(rectangle)
                      for the instance object, the single grass,
                      and mapping.

                      oh, and dont forget, you must be at the 100th frame, on the time sliding bar below.

                      enjoy
                      Dominique Laksmana

                      Comment


                      • #12
                        http://www.3dluvr.com/content/article/90

                        i did this tutorial about 3 years ago i think. i used particle arrays for leaves and some branches

                        ---------------------------------------------------
                        MSN addresses are not for newbies or warez users to contact the pros and bug them with
                        stupid questions the forum can answer.

                        Comment


                        • #13
                          shame on me then...

                          thanks da_elf... lots of tutorial there
                          Dominique Laksmana

                          Comment


                          • #14
                            Nice job dominique. There are a lot of ways to do this and the more methods we know the better we will be at our jobs.

                            How long does it take to render the grass? Is it faster than displacement?

                            Da_elf very nice tutorial.I was just asked by a client to do a bonsai tree for a conference room, great timing!

                            Anyone that has a tip on particles are very welcome to post in this thread.

                            Tony

                            Comment


                            • #15
                              (for same quality)
                              for displacement : 2 minutes 27 seconds
                              for parray : 54 seconds

                              parray:

                              http://img413.imageshack.us/img413/7...seconds4df.jpg

                              displacement

                              http://img503.imageshack.us/img503/9...27seconds7.jpg
                              Dominique Laksmana

                              Comment

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