![]() ![]() The point is that if the ray of dispersed light is shorter than the width of the pupil of the eye (or lens aperture), the light is recombined and perceived as white light, which is light made up of all of the colors together. For plausible results, you need to set it to 300-500 or more.įor the realistic rendering of diamonds, it is crucial to use the physical camera model with proper depth-of-field. For scenes with complex indirect lighting and caustics, the Power clamp parameter is also important, which is responsible for the maximum light energy that a single ray can bring to the image. First of all, set the Max bounces parameter (maximum number of light bounces) that to 20-30 bounces. Alternatively, you may adjust settings manually. In order for diamonds look right it is better to choose “ Quality” preset on the Rendering tab. After all the above settings, we got the following result: Natural-color green diamonds are very rare and one of the most valuable. To make the scene more interesting, let's make one of the stones colored by setting the parameters in the Attenuation section of the Properties tab.įor example, you can set the green color and adjust absorption using the Density parameter. The diamond preset can be found under the Glass filter (or just type "diamond", “dia” in the filter text box). You can also enter the name of the desired material or part of it (for example, "gold" or "go") to filter out the presets. For example, gold preset can be found under the Metal filter: Go to the Library tab and drag the appropriate presets onto the scene objects. Now let's assign materials to scene objects. Note that you can make lighting smoother by blurring the HDRI map: click the Manage map → Blur map button and set the number of blurring steps (more steps – more blur). Go to the Environment tab, click on the Manage map button, and then on the Load map button to open the downloaded HDRI file. We have used Autoshop map which has neutral lights and medium contrast. A lot of free HDRI maps can be found on. A diamond's “fire” is produced when white light disperses into rainbow colors when it hits its facets (the angled cuts in the stone). On the other hand, soft indoor lighting or cloudy skies will prevent a "fire" effect on the diamond. A clear sky map provides good contrast, but it will give a blue tint to the frame and diamonds, which is highly undesirable. For positioning scene objects, you may use a 3D manipulator and Transform widget described in the Basic UI tutorial.įor photorealistic 3D jewelry rendering, it is better to use high-contrast HDRI maps with neutral lights. ![]() Let's also duplicate the entire ring using the Scene Explorer, and place it on the floor next to the first ring to create a more interesting scene. This is useful if we want to have a 3D object added on top of a photo or background. A shadow catcher is a specific material, which is invisible to the camera but capable of receiving shadows from lighting in the scene. In Light Tracer, you may create different floors and stands, from which we will choose a simple rectangular floor:īy default, the newly created rectangular floor gets shadow catcher material. ![]() Now let's add a base for our model so that it doesn't hang in the air. All these formats are natively supported by the native version of Light Tracer, so you may just drag the downloaded 3DM file on the app window: Most jewelry models are designed in CAD tools and are available in formats, such as 3DM, STEP, IGS. We have downloaded a great work by Radovan G. So, we have to ensure enough contrast and light in our 3D scene to make the jewelry attractive.Ī good visual starts with a good model. As a result, these objects virtually do not have their own color, and their appearance depends entirely on lighting and the environment. While basic principles are similar to other 3D product visualization, the particular challenge with jewelry rendering is that metal is fully specular (meaning it reflects like a mirror), and the gemstones are highly refractive. The techniques you'll learn in this tutorial are fundamental to creating high-quality jewelry 3D visualization in Light Tracer Render. Tutorial demonstrating a basic Jewelry Rendering in Light Tracer Render ![]()
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