Announcement

Collapse
No announcement yet.

V-Ray Jewelry

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #31
    Re: V-Ray Jewelry

    thanks guys, it was a fun project to play with.

    Comment


    • #32
      Re: V-Ray Jewelry



      Very great!
      So how i can obtain this kind of nice reflections and light? have you used panel lights?
      thanks

      Comment


      • #33
        Re: V-Ray Jewelry

        the scene is actually very simplistic. it consists of 1 ground plane surface, 3 emitters and white GI set to a value of 1. The emitters are set to a value 4. environment is just black no maps. IR and LC

        Comment


        • #34
          Re: V-Ray Jewelry

          Are you using those planes as emmiters, or dummy objects to create rectangular lights (I actually use rectangles to help position rec lights)? The reason why I ask is because if your using them as emmiter, you may be able to decrease your render time by switching to rec lights. And also I don't think the scene would react very well to caustics, but I could be wrong about that.
          Damien Alomar<br />Generally Cool Dude

          Comment


          • #35
            Re: V-Ray Jewelry

            yes the blue layer planes are emitters. When you switch to rectangularlights you fight with the strength of the light. The emitters seem to cast blurier reflections in the gold materials than the rectangle lights of equal brightness. the emitters are also more directional than the rectangle lights as well. So they tend to not wash out the ground plane as easily, yet provide a "hot light" to reflect in the metal.

            Comment


            • #36
              Re: V-Ray Jewelry

              the emitters are also more directional than the rectangle lights as well. So they tend to not wash out the ground plane as easily, yet provide a "hot light" to reflect in the metal.
              Did you try to disable "ignore light normals"?

              Also try to render with "Sub-pixel" from the color mapping options. It smooth the edges of high contrast jumps in the reflections.

              Also a small AA filter amount could be nice against this extrem sharp look - gaussian 1.1 ... 1.5. But this is a question of personal taste.

              Is the ground splotchy or plain white? If plain white, than try to use some more IM subdivs.
              www.simulacrum.de - visualization for designer and architects

              Comment


              • #37
                Re: V-Ray Jewelry

                This is kind of off topic,but it may have some relevance. Do you think it would be nice to beable to control the direction of light by way of mapping the light with a normal map. That way the information could be read from normal map and that influence the direction of the light. In Max you can map a texture to the light, but currently we can't use this feature (maybe for the SR Joe?) Maybe the normal maps would allow much greater control of the light, but it might just be me.
                Damien Alomar<br />Generally Cool Dude

                Comment


                • #38
                  Re: V-Ray Jewelry

                  Originally posted by Micha
                  the emitters are also more directional than the rectangle lights as well. So they tend to not wash out the ground plane as easily, yet provide a "hot light" to reflect in the metal.
                  Did you try to disable "ignore light normals"?

                  Also try to render with "Sub-pixel" from the color mapping options. It smooth the edges of high contrast jumps in the reflections.

                  Also a small AA filter amount could be nice against this extrem sharp look - gaussian 1.1 ... 1.5. But this is a question of personal taste.

                  Is the ground splotchy or plain white? If plain white, than try to use some more IM subdivs.
                  yes ignoring the light normals does give me a more directional effect but.. the emitters tend to produce very bright reflections like a light box without the actual washout that i seem to get from the rectangular lights of equal multipliers. I am sure its a setting, but emitters seem to be working pretty well for me so far.

                  I will give the "Sub-Pixel" a try. That's been one thing thats been driving me crazy since i started rendering with this engine. I find that AA tends to be either to much or to little a lot of times. And yes the gp is splotchy from my settings. I didn't want to spend to much time rendering, it was easier to toss in a map on the gp and render than spend the extra render time. ;D



                  Comment


                  • #39
                    Re: V-Ray Jewelry

                    updated with some new diamond tests using per object reflections they still arent prefect but i am making progress at least.. they are getting faster. first image was under 30 seconds.












                    Comment


                    • #40
                      Re: V-Ray Jewelry

                      Beautiful design, I like it.

                      Did you the LC option "use for glossy rays"? Helps a lot. Next release support material based env maps.

                      Also, did you test the universal setup? My experience was, that the universal setup is good for exteriors, DOF and much blury refelctions.
                      www.simulacrum.de - visualization for designer and architects

                      Comment


                      • #41
                        Re: V-Ray Jewelry

                        Thanks Micha, thats great coming from you ;D Yup glossy rays is on, sub pixel is also on. I think i have this setting dialed in pretty well IR + LC Quick is what i've named my visopt file. It renders really quick all up until you make a semi reflective ground plane. The diamonds are using per object reflections but there still seems to be an issue when applying environment maps to transparent materials. I showed Joe last week and he is working on it. The metals both have their own reflection hdr's that i actually rendered in V-Ray and saved to HDR format (i love that feature). The diamond reflection map is actually on the Environment map channel instead of the object env map channel. As long as i do it that way it works. It's very promising for the direction its heading. It will just take some time to create really good reflection maps that work more accurately. The great news is that we should be able to get pretty dang good results for diamonds in a very short amount of render time.

                        Comment


                        • #42
                          Re: V-Ray Jewelry

                          Travis, I sent you a PM about creating dispersion as it is possible within the current build.
                          Damien Alomar<br />Generally Cool Dude

                          Comment


                          • #43
                            Re: V-Ray Jewelry

                            hi Travis

                            your diamond ring in gallery looks great!! i tried to make my diamond looking similar for months but still can't figure out how to do. i used refrection 2.6 but higher it is more darker stone. my question is how did you get the disperation and nice looking stone?? can i ask you what your settings are??
                            these are my setting. can you please have a look and see what's wrong??



                            many thanks

                            Comment


                            • #44
                              Re: V-Ray Jewelry

                              actually my laptop that has that material saved on it just died about 2 days ago. so i cant retrieve the material. but it looks to me like you dont have double sided turned on. Do this. Load the standard clear_glass.vismat file that comes with vray, set the ior on the refraction layer and then make sure Double Sided is selected and try rendering again. Unfortunately there is no dispersion, its trickery from the HDR map that I used. Since the material is highly reflective i let it reflect a stain glass window and that faked it.

                              Comment


                              • #45
                                Re: V-Ray Jewelry

                                Thanks for your help.i checked double side and re render. it looks better now but still not satisfied 100%. it looks bit blury. your one has more bright and clear reflection. any other suggesiton?? what sort of HDRI you using?





                                Comment

                                Working...
                                X