IRender Foreground Tab

Foreground Tab

Add Foreground Images to renderings

Collapsed view:

IR SetupOptions Foreground sm.jpg

Expanded view:

IR SetupOptions Foreground.jpg

Foreground 72.png

Use any of these 4 options:

  • Foreground Image - pasted in front of rendering.
  • Logo Watermark on image
  • Pattern Masks
  • Overlay SketchUp Edges

Render Plus watermark add in 90% transparent, masked mode at lower right.
Pattern mask added to image. 85% transparent - mask mode. Note: In mask mode the pattern is applied only to the geometry and not to the background. 50% blend.


  • Foreground Image - Select an image for the foreground.
Browse' - select an image
Clear - clear current image
  • Use Foreground Image - uncheck this to turn off the foreground image without changing any other settings.
  • Use Edge lines for foreground (SketchUp only) - uses the SketchUp edge lines as a foreground overlay.
  • Use Multiple Mode - merge images using Multiply Mode
  • Treat White as Transparent - any white in the image is treated as fully transparent.
  • Stretch to fill screen - the foreground image will fill the entire screen\*
  • Tiled - the foreground image will be tiled across screen. This is good for masking patterns.
  • Image Position - UL, UR, LL, LR - the foreground image is placed in a corner of the rendered image - useful for logos.
  • Lock Aspect ratio - When stretching the foreground image, it will not be distorted. (And if may not fill the entire screen).
  • Use as mask - the intensities in the foreground image will change the intensity - but not the color - of the rendered image. In mask mode the pattern is applied only to the geometry and not to the background.
  • Scale - for tiled and centered, allows you to make the image larger of smaller.
  • Blend Foreground into rendering - makes the foreground image partially transparent. Less = more transparent. More = Less transparent.
  • Apply - redisplays the rendered image with any changes you have made.


  • Use .PNG files when possible. Compression artifacts in .JPG images may effect transparency.

Use with Edge Lines

This image had Sketchy Edges placed on top using the Foreground feature in IRender nXt

Sketchy Hidden Line from SketchUp

By saving an image of your SketchUp model in Hidden line or with Sketchy Edges, you can use the line image as a foregorund image, which will add the edges to the rendered image.

Multiply Mode According to Photoshop help...

Looks at the color information in each channel and multiplies the base color by the blend color. The result color is always a darker color. Multiplying any color with black produces black. Multiplying any color with white leaves the color unchanged. When you’re painting with a color other than black or white, successive strokes with a painting tool produce progressively darker colors. The effect is similar to drawing on the image with multiple magic markers.
Paw print merged with image using multiply mode

Foreground Image

Use images for foreground

Foreground Images are special images which you can place in front of your model. They can be used for logos and pattern masks, as well as stencils placed in front of the rendering.

Watermarks Feature

Foreground image placed as a Watermark

Watermarks - are used to place logos, foregrounds images, or texture maps in front of your rendering.

See also

Setup Options

The Setup Options dialog is the interface for rendering settings in IRender nXt. Options are grouped in the following tabs:

Presets Lighting Presets, SketchUp on/off (Sun, Sky, Ground), Sky mode, Ambient Light, Light Balance, Other Settings
Render Image Size, Stop Rendering After, Rendering Engine, Make Panoramic Image, Color Rendering Mode, Autosave, Lights Processed per Pass, Maximum Texture Size, Use Section Planes, Processing Parameters, Show Settings
Styles Auto Reflection, View Wizard, Batch Rendering Settings
Lights Light Balance, Ambient Light, Use Indirect Lighting, Light Balancer (channels)
Sky SketchUp Sun and Sky on/off, Sky [color] mode, Illumination, Automatic Sky, Sun and Sky Intensity, Ground Plane
HDRi High Dynamic Range image (HDRi) Settings
Background Background Image
Foreground Foreground Image
Plants IRender nXt Plants, Render Plants as 2D Images, Plant Layers to Display
Fog/Haze Volumetric Fog, Calculation Boundary
Special Edge Lines, Process 2 sided faces, RPC Objects, Other
Image Save Image Automatically, Auto image format, Auto Image, Action when done, JPEG images
More Number of Threads to use for Rendering, Save Option Values, Load Option Values from, Sync SketchUp Materials to Default Materials

See also