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    Render this: LCD screen (light emitting material)

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    • jeff hammondJ Offline
      jeff hammond
      last edited by

      @al hart said:

      @unknownuser said:

      i dunno, when my iphone is off, it's just a black screen.

      Oops - I guess U need to buy one.

      But - does it have a lit and non-lit mode?

      no, it's just like a standard computer monitor.. on or off and that's it

      http://obsdesign.freznell.com/wp-content/uploads/2008/11/iphone-off.jpg

      dotdotdot

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      • olisheaO Offline
        olishea
        last edited by

        al: nobody said you cant make it an emitter.....there are many ways of doing this but its the most realistic way of achieving the result. you cant really make something look illuminated without showing its effect on neighbouring surfaces/particles (air/dust etc). correct me if i'm wrong. you are basically trying to make a texture look brighter which isn't convincing.

        why are you trying to avoid putting lights behind it? this is largely how screens are illuminated in real life. like a large emitter......again correct me if im wrong...but saturating and brightening a texture wont make it look illuminated.

        oli

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        • EscapeArtistE Offline
          EscapeArtist
          last edited by

          @al hart said:

          I presume that in the image you showed, we see a reflection of the lit iPhone, but it is not actually a light source??

          The texture itself is the source of light, there are no other lights whatsoever in the scene. The reflection on the surface below the screen is actually reflected light off of the ground plane. Kerkthea will create light based on the color of the image used - black, no light; green, green light, etc... Kerkythea does not do "light linking" (yet), where light can be shone on one object of the scene to make it brighter but not affect any other objects. Other render engines can do this though.

          One could put lights behind a texture, but I couldn't imagine the difficulty of getting nice, even light out of a large surface by arranging light sources behind it. It would be more involved setup in the render engine as well, you'd have to do something like a multi-layered texture with transparency mapping and translucency set up for the colors.

          Another example, this time the blacks are not completely black so they do emit some light. A quick "plasma TV".
          testscr.jpg

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          • U Offline
            Ultimatez 32
            last edited by

            twilight easy 09, 24 minutes
            phone.jpg
            planning to buy the real version soon

            Windows 7 64-bit, Intel Core i3 M350 @2.27GHz, nVidia GEFORCE 310M 512Mb with CUDA, 4gb RAM

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            • W Offline
              weizxwilliam
              last edited by

              Mine first try ;D


              iphonepic1.png

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              • R Offline
                richcat
                last edited by

                Just got a few minutes - eventually - to give this challenge a go.


                iphone1.jpg


                iphone2.jpg

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                • 2 Offline
                  21D
                  last edited by

                  My quick try,
                  exported to MODO 401 for rendering
                  Modo Rendered

                  "I prefer drawing to talking. Drawing is faster, and leaves less room for lies."
                  Le Corbusier

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                  • boofredlayB Offline
                    boofredlay
                    last edited by

                    Ha Ha. Great render Rob. 👍

                    http://www.coroflot.com/boofredlay

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                    • D Offline
                      dspace
                      last edited by

                      Just join, so just post....a quickie for the shine..but not the emitter..oops! 😉


                      iphonexi.png

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                      • R Offline
                        robmoors
                        last edited by

                        Iphone sucks Android rules!!
                        SUCK IT!!!!

                        http://img.photobucket.com/albums/v244/Blaze_X/HTC Hero/HTCHero-1.jpg

                        Vray for Sketchup
                        Model by me
                        HTC Hero

                        Rob Moors
                        Architecture Student

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                        • Large_BlackL Offline
                          Large_Black
                          last edited by

                          Hi to everyone, i would like to share my attempt.
                          Rendered with Vray for SU, SU lines overlay, some level, color correction and DOF in PP.
                          No light, only the emissive material of the phone.
                          Sincerly Enrico

                          http://img163.imageshack.us/img163/605/91784613.th.jpg

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                          • W Offline
                            wahoowetzel
                            last edited by

                            quick question with the LCD screens. I'm working on a LCD TV and I wanted to know if there is a way to in/decrease the amount light the image (screen material) emits without affecting the actual image's appearance. What I'm getting right now is a decent light level being emitted but the image is getting washed out. Any ideas?

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                            • D Offline
                              d12dozr
                              last edited by

                              What render app are you using?

                              3D Printing with SketchUp Book
                              http://goo.gl/f7ooYh

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                              • Al HartA Offline
                                Al Hart
                                last edited by

                                @wahoowetzel said:

                                quick question with the LCD screens. I'm working on a LCD TV and I wanted to know if there is a way to in/decrease the amount light the image (screen material) emits without affecting the actual image's appearance. What I'm getting right now is a decent light level being emitted but the image is getting washed out. Any ideas?

                                One trick you could try is to place an invisible, second face in front of the visible face. Make the second face the light - diffuse so the light only goes up - and then adjust the intensity of the invisible face get the lighting effect you want, without having it effect the illumination of the visible face.

                                If you are using IRender nXt, you would illuminate the visible face with "self glow", - a setting which make it seem illuminated without emitting illumination, and make the invisible face a diffuse light. By placing the two faces in separate lighting channels, then you can use the post-processing image editor to quickly adjust the lighting intensities and effects of the two faces without having to re-render ay of the scene.

                                Al Hart

                                http:wiki.renderplus.comimageseefRender_plus_colored30x30%29.PNG
                                IRender nXt from Render Plus

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                                • N Offline
                                  nomeradona
                                  last edited by

                                  Keyshots.. real time about 2 minutes

                                  http://i334.photobucket.com/albums/m421/nomeradona_1234/Iphone_keyshots.jpg

                                  visit my blog: http://www.nomeradona.blogspot.com

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                                  • N Offline
                                    nomeradona
                                    last edited by

                                    some parodies

                                    Iphone captains speaking...

                                    http://i334.photobucket.com/albums/m421/nomeradona_1234/iphone30.jpg

                                    "all man will have"... the main goal of mr.mac

                                    http://i334.photobucket.com/albums/m421/nomeradona_1234/iphone27.jpg

                                    visit my blog: http://www.nomeradona.blogspot.com

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                                    • pyrolunaP Offline
                                      pyroluna
                                      last edited by

                                      Hey everyone
                                      I'm still sort of new here but hey this is fun. I notice people seem to have the same ideas... just a little while back I modeled an i-phone so I could test light-emitting materials in v-ray for SU. So I'll just post the renders...
                                      This one is lighted with an interior hdri... maybe the result's a little too darkThis one is lighted with a sun system... so the screen brightness is way too low... just as it would be in real life on a very sunny day...


                                      And this is the sketchup file. Enjoy! I took the measurements from my own i-phone, and scaled everything by a factor 10. Though I didn't put in all the details...

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                                      • W Offline
                                        wahoowetzel
                                        last edited by

                                        Thanks Al,

                                        I'm using the new Vray for Sketchup but I think I might be able to adapt some of your method to accomplish what I'm after.

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                                        • marked001M Offline
                                          marked001
                                          last edited by

                                          here's an old,noisy Maxwell rendering..

                                          *edit... reading is fundamental.. LCD screen...whoops, sorry.

                                          http://img166.imageshack.us/img166/3710/tv1by9.jpg

                                          http://www.revision21vis.com

                                          instagram: revi21on

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