IRender nXt Getting Started Tutorial

IRender nXt - Getting Started Tutorial

Getting Started Video

Dennis is working on two new videos for ArielVision. In the meantime, these two nXtRender Videos should be close enough to get you started.

This video takes a 3D Warehouse Model and renders the exterior and then adds reflection and lights to the interior to help you get started with IRender nXt.

To watch the video which parallels this Tutorial, click here: Getting Started with IRender nXt

Getting started video.jpg

Getting Started Model

To download the 3D Warehouse model which is used in the video, Click Here - 3D Warehouse Model

Getting started - 3D warehouse.jpg

Download and Installation

  • Download IRender nXt .
  • Download a version from the Downloads Page
  • (If you have already downloaded and installed IRender nXt, ignore this step)
  • After downloading the .ZIP file, click on the file name inside to install IRender nXt.
  • During installation, select the proper version of SketchUp if you have more than one version installed.

Start SketchUp

Download SketchUp 8 from Here: ( SketchUp Download ) if you don't have it yet. (IRender nXt works with both the free and professional versions.)

Start IRender nXt

Select IRender nXt Load from the SketchUp Plugins menu.


First Rendering - Exterior Scene

3D Warehouse model you could use for the first rendering

IRender nXt was developed to let you "Design with the lights on"™. In particular, you don't have to add lights to you model for rendering to show off objects, buildings, etc.

Select a model

For your first rendering we suggest a simple exterior or simple object.

We are going to render it, using default settings, without making any changes to the model. This will let you see the effects of the default lighting of IRender nXt. For exteriors, this is easiest to see if the model has roof overhangs, porches, or other features which will benefit from subtle lighting effects.

For the exterior rendering, use the 3D warehouse model from the Video Tutorial (and select the exterior scene), or here is another 3D warehouse model you could try: 3D Exterior Model of Plan 22169

Start Rendering

Rendering Settings.jpg
  • Click the Render icon: Render24.PNG
  • After you click the start rendering icon, the Rendering Settings dialog will appear to help you with your settings.
  • Even for exteriors, we suggest you try the High Dynamic (studio) lighting settings for your first rendering.
    (Click Defaults for the default rendering settings)
  • Click Start Rendering to render your first image.
Rendered image - 40 rendering passes - Rendering time 5 minutes

Rendering With Background Skies

If you want to try more things with Exterior check out these Tutorials:

Using reflection and lights

For the second rendering we want to apply reflection to some surfaces. There are three samples below.

Video Tutorial Interior

If you have downloaded the model from the Video Tutorial, select the Interior scene.

Make some surfaces reflective

Material Defaults.jpg
  1. Right click on the floor, table, and/or vases
  2. Select 'Create Material or Edit Material
  3. From the presets tab of the Material Wizard, select Reflective.
  4. You can also adjust the amount of reflection using the first (Main) tab.

Add a table Lamp

Table Lamp Tab.jpg
  1. From the IRender nXt Toolbar, select the Add Light icon: ( Create-light-fixture.jpg )
  2. Select the Table Lamp tab
  3. Set the size and colors of the table lamp desired.

Add Ceiling Lights

Ceiling Light Tab.jpg
  1. Click the Light icon again.
  2. Select the Ceiling Light tab.
  3. Change any settings if desired
  4. Click Place and place one or more lights in the ceiling.

Start Rendering

  1. Click the Render icon: Render24.PNG
  2. Select the Interior With Sun Preset
  3. Click Start Rendering to render the car.

Reflection on Automobile

2006 Lamborghini Concept S from 3D warehouse

This is often fun with an automobile. So I selected a popular model from the 3D warehouse: 2006 Lamborghini Concept S

Setting Material Properties


With SketchUp loaded, right click on the white car body and select Create Material.

A dialog will come up showing some material presets and settings. Select either Reflective or Metal and click OK.

Do the same for the wheels.

Start Rendering

  • Click the Render icon: Render24.PNG
  • Select the High Dynamic (studio) lighting settings again.
  • Click Start Rendering to render the car.
Rendered image - 9 passes - 37 seconds

Studio setting - more reflections


This is another good model for testing reflections. It was created by "Solo" for a Rendering Workshop on SketchUcation.

Download the model from the 3D Warehouse using this link: Still Life by Solo

After loading the model and loading IRender nXt, right click on the plate, silverware handles, silverware metal, apple, and even the place mat to make them reflective. (In the real world almost everything is a little bit reflective.)

Some ideas:

  • Plate - Reflective - use default
  • Silverware handles - Plastic - use default
  • Silver - Metal - use default
  • Apple - Reflection - use 50% intensity
  • Place Matte - Reflective - 40%

Try these values, and the experiment with your own.

Start Rendering

  • Click the Render icon: Render24.PNG
  • Select the High Dynamic (studio) lighting settings again.
  • Click Start Rendering to render the car.

See also