Teapot 2 Duplicate the orange material, rename it teapot 2 and assign it to the small teapot. If you go really high, it will be the same as turning fresnel off (>25).ДЎ5. The lower you go, the less it will reп¬‚ect in the middle. Lower the fresnel IOR to increase the effect. Notice the middle of the teapot has weaker reп¬‚ections than the sides. Fresnel reп¬‚ections Leave the fresnel IOR at 1.6 and hit render. The fresnel IOR box will become available.ДЎ4. To do this, click the small L next to the fresnel check box. In V-Ray however, you can unlink them, setting a different IOR for reп¬‚ection as for refraction. In real life, the fresnel effect is always linked to this IOR. You can п¬Ѓnd this in the refraction parameters. The amount of the effect is controlled by the IOR of the material. Parts of the surface that point directly at you will reп¬‚ect less than parts of the surface facing towards you under a greater angle. Fresnel reп¬‚ections Fresnel reп¬‚ection is a phenomenon that happens on almost all reп¬‚ective surfaces. Higher numbers will only waist valuable render time for no visual improvement.ДЎ3.

Max depth Reset the exit color to black and play with the max depth parameter until most of the black areas disappear. Sometimes it is therefore useful to change this to another color than black, something more appropriate for the scene for example.ДЎ2. But by lowering the reп¬‚ections, the exit color will likely come into play.

The max depth is a way to lower render times in scenes with lots of reп¬‚ective objects. Now all reп¬‚ections of reп¬‚ections turn red instead of black. Assign this material also to the small teapot. Exit color Leave max depth at 1 and change the exit color to red. 2 means a reп¬‚ection of a reп¬‚ection can exist and so on.ДЎ1. Max depth of 1 means only 1 reп¬‚ection can take place. The max depth controls how many times a ray can reп¬‚ect before the calculation stops. You will notice that many areas turn black. Set the reп¬‚ection color to pure white, and set the max depth parameter to 1 and hit render. Try a very dark grey, and very light grey too to see the difference. Notice the teapot becomes very reп¬‚ective. If you make it red for example, the reп¬‚ections will be tinted red. Black means there is no reп¬‚ection at all, white means the material will become 100% reп¬‚ective. The color swatch next to вЂreп¬‚ectвЂ™ is the main reп¬‚ection control. Below the diffuse slot are the reп¬‚ection options of the material. Reп¬‚ections Select the orange material in the material editor. Make sure default lights are turned off.ДЁ. First render Hit render! Your image should look similar to mine, if you have set all render properties as in step 1. You should have something like in the image on the left.Д§. Rename this material вЂњground planeвЂќ and assign it to the ground plane and small teapot. Second material I Repeat the previous steps to make a very light grey material. For now, simply make the color swatch a light orange color.Д¦.

The square next to it is a map slot, you can load bitmaps or other kind of maps here to texture the material. The п¬Ѓrst parameter in the material is the diffuse slot. Rename and color Rename the material вЂњteapot1вЂќ. Double click or drag and drop it into one of the material slots.ДҐ. Load a V-Ray material Press the вЂњstandardвЂќ button in the material editor and select VRayMtl from the list. Open the material editor Open the material editor by pressing вЂњmвЂќ on the keyboard.Д¤. ThatвЂ™s why it was one of the п¬Ѓrst 3D objects out there! Make two teapots on a larger plane if you want to follow this tutorial as close as possible.ДЈ. A teapot is a good object for test renders, because of its shape. Set render settings Open the render settings dialog and do the following: - set V-Ray as the renderer - output size to 480x360px - global switches: turn off default lights - image sampler to adaptive QMC - antialiasing п¬Ѓlter вЂњMitchell-NetravaliвЂќ - indirect illumination ON - Secondary bounces multiplier to 0,85 - Irradiance map settings: - вЂњlowвЂќ preset - HSph subdivs = 30 - environment: - skylight pure white color - reп¬‚ection/refraction pure white, 1,2 multiplier - system: render region division 50x50pxДў. The V-Ray version I used for this tutorial is 1.47.03.ДЎ. If you are new to V-Ray, please read the basic render settings tutorial п¬Ѓrst, so you can start this tutorial in the correct way. INTRODUCTION The basic material settings tutorial explains almost all material parameters of the V-Ray material. V-RAY MATERIAL SETTINGS by: Wouter Wynen February 2006 All other trademarks belong to their respective owners. VisMasters and the VisMasters logo are trademarks of ArchVision, Inc.

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