Here are some examples of how V-Ray will render different Turbidity settings. (If the light's options are edited in Rhino, be sure to uncheck "Override Sun's parameters" in the Seeįor the options for directional lights. The easiest way is to delete the light object and use theįor options in Rhino, select the sunlight and use theĬommand. Or, click Modify in the light object's properties (the Sun Angle Calculator should appear, and the sun can be repositioned from here). In Rhino, the position can be edited manually using control points. There are three ways to change the sun's position. Remember that the actual position in the model of the light object does not matter because the arrow merely denotes the direction of the sun's rays. The latitude, longitude, and time zone can also be edited, but it is easiest to search by a named location.Īfter clicking okay, click anywhere in the model to place the directional light object. Set the location of the scene by searching for the city, state, or country. By default, North is at 90 degrees, which is in the direction of the y-axis.Įnter the date and time of the scene, or click on the "Now" button to set the time automatically to the current time. Make sure that the northern side of the model is facing North according to the compass. The compass under Sun Options shows which direction is North. Remember that the orientation (North, South, East, or West) of the model matters. In the Sun Angle Calculator, uncheck "Control sun position manually." The advantage to creating a sunlight system through V-Ray by using theĬommand is that the parameters for sun position, date, time, and location for the sun can be edited so that the light is as close to reality as possible.Ĭommand, or click on the yellow asterisk icon, to place a directional light that is accurate for a specific date, time, and location. There are separate options for the light in Rhino and in V-Ray.
The sun and sky work together in V-Ray to create a more realistic rendering. Once a sun is placed within the model, a sky needs to be added in V-Ray so that V-Ray knows where the sunlight is coming from. Using a sunlight system will produce lighting that is accurate to the site's date, time, and location. The sun's intensity and angle are important to consider when lighting a scene, especially for exterior renderings. A sunlight system, when partnered with Physical Camera settings, gives the user a great range of flexibility in creating accurate daylight renderings.
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