IRender Foreground Tab

Foreground Image

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.

Use images for foreground

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

Foreground image placed as a Watermark

Foreground Tab

Foreground 72.png

You can add Foreground Images to IRender nXt renderings using the Foreground Tab of the Options Dialog

Usage --- There are 4 basic modes:

  1. Foreground image - pasted in front of rendering.
  2. Logo Watermark on image
  3. Pattern masks
  4. 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.
  • UL, UR, LL, LR' - the foreground image is place 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

See also

Other Setup Options