There are several other parameters that you can touch (like custom white balance, vignetting, etc) but you can have more control if you do this in photoshop. Higher values produce lighter images, but the downside is that the higher the sensibility the more вЂњgrainyвЂќ the image will look.ДЇor daylight exterior renderings it is recommended to keep this at 100. This parameter determines how sensitive the film is to the light. It is calculated in вЂњinverse secondsвЂќ therefore higher values produce darker images. This parameter determines the amount of time the film is exposed to the light. Higher values produce darker images, while lower values brightens the images This parameter determines the width of the camera aperture and therefore it affects exposure. There are 3 main parameters that affect the lighting/atmosphere: F-number, shutter speed, and film speed. I always prefer to further adjust the image from the vray camera parameters. You can either play with the curve in vray virtual frame buffer, or start tweaking the vray camera settings. If you donвЂ™t like the vray physical camera, you can use a standard one as well, but you need to decrease the intensity to somewhere around 0.01Д«ellow is a rendering that was done using the settings above.ДЄs you can see, at the moment it looks a bit dark and washed out. Having this said, the settings that I usually use for creating a day rendering are: I always prefer to leave this as default.ДЈ) -vray sun size multiplier вЂ“ a value of вЂњ0вЂќ produces very sharp shadows, while higher values makes them softer.Д¤) -shadow subdivisions вЂ“ if you are using a higher value for the vray sun size you will need to increase the shadow subdivisions as well, otherwise the samples will be visible.ДҐ) -Intensity multiplier вЂ“ needless to say that higher values results in higher sunlight intensity Lower values are supposed to make the sunlight look more orange, while higher values should make it bluish. See examples bellow:Дў) -ozone вЂ“ ranges from 0 to 1. A higher turbidity value simulates a larger amount of dust and makes the rendering look more yellowish. This parameter affects the color of the sky and overall atmosphere in a way the dust affects atmosphere. Bellow are 2 examples of renderings with different sun positions (while keeping the rest of the settings identical). The position of the sun source is directly related to the time of the day. When you will be asked if you would like to вЂњautomatically add a Vray Sky environment mapвЂќ, click вЂњyesвЂќ. You can now place the sun and itвЂ™s target in your scene. Again, from the drop down menu select vray and click on Vray sun.

Click again on вЂњcreateвЂќ and choose вЂњlightsвЂќ. You can now create and place the camera wherever you want in the scene.Дў) Now we will create the sun. From the drop down menu select вЂњvrayвЂќ and click on вЂњvray physical cameraвЂќ. However, the steps above pretty much cover the essential.ДЎ) Click the вЂњcreateвЂќ button and select вЂњcamerasвЂќ. If you need a more in depth explanation regarding linear workflow, check out my lwf tutorial that I have posted some time ago. Under вЂњMaterials and ColorsвЂќ check both вЂњAffect Color SelectorsвЂќ and вЂњAffect Material EditorвЂќ.ДonвЂ™t forget that for every texture that you use you need to override itвЂ™s gamma like in the screenshot bellow: Go to вЂњCustomizeвЂќ, вЂњPreferencesвЂќ and click the вЂњgamma and lutвЂќ tab.Д¬heck вЂњEnable gamma /lut correctionвЂќ, type 2.2 in the field next to вЂњGammaвЂќ.

In this tutorial I will go through a simple, yet effective way to setup a lighting rig using 3ds max and vray.Д«efore we begin we need to setup the lwf.

Vray tutorial