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VRay.com - Your source for all things VRay  ::  VRay for SketchUp  ::  Manual  ::  New Features Guide  ::  Lights: IES Lights

VRay for SketchUp New Features

VRay for SketchUp New Features Guide

Lights: IES Lights

IES Light:  VRay IES Light  This V-Ray for SketchUp new light type can be used to load and render real-world light distribution profile files
(IES files - Illuminating Engineering Society). The icon is located in the V-Ray main toolbar.

VRay IES Light

Parameters

Enabled: Turns on or off the IES lights.

Shadows: Turns on or off the IES shadows.

Soft Shadow: This causes the light to take into account the information about the light shape in the IES file (if there is any shape defined) so that it produces proper soft shadows.

Shadow Color: Determines the color of the shadows.

Shadow Bias: Bias moves the shadow toward or away from the shadow-casting object (or objects). If the Bias value is too low, shadows can "leak" through places they shouldn’t, produce more patterns, or make out-of-place dark areas on meshes. If Bias is too high, shadows can "detach" from an object. If the Bias value is too extreme in either direction, shadows might not render at all.

Shadow Subdivs: This value controls the number of samples V-Ray takes to compute lighting (the quality of the shadows). Lower values mean more noisy results, but will render faster. Higher values produce smoother results but take more time. Note that the actual number of samples also depends on the DMC Sampler settings.

File (picker): Allows you to load the IES file that defines the light distribution.

Filter Color: This parameter determines the color of the light.

Photon Subdivs: This value is used by V-Ray when calculating the Global Photon Map. Lower values mean more noisy results, but will render faster. Higher values produce smoother results but take more time.

Affect Diffuse: This determines whether the light is affecting the diffuse properties of the materials.

Affect Specular: This determines whether the light is affecting the specular of the materials.

Area Speculars: When this option is Off, the particular light will be rendered as a point light in the specular reflections.

Power: Determines the intensity of the light in lumens. A typical 100W electric bulb emits about 1500 lumens of light.

Cutoff Threshold: This parameter specifies a threshold for the light intensity, below which the light will not be computed. This can be useful in scenes with many lights, where you want to limit the effect of the lights to some distance around them. Larger values cut away more from the light; lower values make the light range larger. If you specify 0.0, the light will be calculated for all surfaces.

Caustic Subdivs: This option controls the amount of photons that V-Ray will trace to estimate caustics (quality of the caustics). Large numbers slow down the calculation of the caustics photon map and may take more memory.

Bumped Below Surface: This is used for cases where the light shines on surfaces with extreme bump mapping. For such surfaces, it is possible that the bump map will turn the surface normal towards the light, even though the light shines on the back of the surface. The light option defines whether such portions of the material will be lit or not.

How to use IES Lights:

1. Click on the IES light IES Light icon to add a V-Ray IES light to your scene.
2. Click on the scene to select the location of the IES light.
3. Right click on the IES light, select V-Ray for SketchUp and then "Edit light".

IES Light - Edit Light

4. Click on "File" to load an IES file from your hard drive.
5. At this point you can adjust the setting of the IES light to get your desired effect. For example, if you are using the Physical Camera you might have to increase the power to make the light visible. Also you can change the "Filter Color" to control the color of the light.

IES Light - Load IES File

6. Render your scene.

IES Light - Render

 

Tips:

The unit for the V-Ray IES light is in lumens and a typical 100W electric bulb emits about 1500 lumens of light. For this reason when you are using the physical camera you might use a very high value. The physical camera will control the exposure of the sun and also reduce the brightness of every other type of light.

Once you created an IES light you have to scale the icon to your desired position. Remember the lower part of the cone is the light emitter. Do not close that part inside of the other surface because you can hide the IES light.

V-Ray IES light tip

 



V-Ray 2.0 for SketchUp

V-Ray 2.0 for SketchUp
 
 
  V-Ray 2.0 for SketchUp Service Pack 1 Now Available
 

V-Ray 2.0 for SketchUp Service Pack 1 is now available for download. A few new features have been added and improvements have been made to many current ones. Also, V-Ray 2.0 for SketchUp now supports SketchUp 2014.

  • With the new Batch Render tool you can now render all SketchUp scene tabs with a single click.
  • V-Ray RT has been optimized for a more interactive experience and focused on a deeper integration with SketchUp.
  • Detailed scenes will be faster and easier to create with further improvements to V-Ray Proxies.
  • Thanks to your feedback, this release includes many bug fixes, including fixes to distributed rendering.
SketchUp 2014 Compatible

 

V-Ray 2.0 for SketchUp Now Available
Rendering by Dario Dubinsky

V-Ray 2.0 for SketchUp is a massive upgrade to V-Ray for SketchUp which includes a series of new feature introductions that enhance visualization workflow and render quality such as V-Ray RT, V-Ray Dome Light and streamlining scene complexity with V-Ray Proxy.

V-Ray 2.0 for SketchUp
Rendering by Dario Dubinsky

Click here for more information


Buy VRay for SketchUp
Buy VRay 2.0 for SketchUp

SketchUp is one of the most widely used and easy to learn 3D Modeling software on the market today. With V-Ray for SketchUp, users now have one of the most powerful rendering tools available to visualize their models with the upmost quality and realism. V-Ray works within the SketchUp environment allowing users to be able to efficiently incorporate the task of rendering within their current workflows.

  Windows Edition   ( Now SketchUp 2014 Compatible )
  Mac Edition   ( Now SketchUp 2014 Compatible )



Buy VRay 2.0 for SketchUp Student / Educational

The EDU edition provides students and training centers a substantial educational discount.

View Product Page   ( Now SketchUp 2014 Compatible )


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News News

Monday, March 24, 2014

V-Ray 2.0 for SketchUp now supports SketchUp 2014

V-Ray 2.0 for SketchUp now supports SketchUp 2014

V-Ray 2.0 for SketchUp Service Pack 1 is now available for download. A few new features have been added and improvements have been made to many current ones.

Click here for more information



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