How to Use SketchUp V-Ray Fur: A Rug Lesson

Making a realistic shaggy rug with SketchUp V-Ray Fur

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What’s in this video?

In this short lesson, we show how to make a realistic shaggy rug with SketchUp V-Ray Fur. A shaggy rug is a type of rug known for its long, soft pile. Modeling these fibers one by one isn’t practical; V-Ray Fur does the job itself at render time. (The video is in Turkish; this guide walks through the key steps in English.)

The video description has no chapter timestamps, because the lesson is short and built around a single exercise. Based on the title, the lesson focuses on:

• What the V-Ray Fur feature does
• Giving a rug surface a fur effect
• Making the shaggy rug look realistic

Since the video runs about 5 minutes, it is a quick introduction to the topic. For detailed setting tests, we recommend practicing in your own scene.

Who is it for?

This lesson is especially suited to interior designers who do interior visualization, because a rug is one of the most important objects in setting a room’s warmth and realism. A rug left as a flat texture looks artificial, however good the rest of the scene is.

Users learning basic materials and lighting with V-Ray will also get a lot out of this lesson. It is a good step for anyone who wants to move on to detail. Architecture students learn how to add a small but effective touch to their presentation images.

What you need to know about SketchUp V-Ray Fur

V-Ray Fur generates thin, strand-like fibers on a surface you choose. These fibers don’t exist as real geometry in the model; they are created at render time. So your SketchUp file stays light, but you see a dense fur texture in the rendered image.

We use this method not only for rugs but on other surfaces too. The same logic applies to grass, plush fabric, fur or fluffy cushions. So once you learn it, it helps in many scenes.

In the Fur settings, we usually look at these properties:

• Length: how far the fibers extend from the surface; we choose longer fibers for a shaggy rug.
• Thickness: how fine the fibers are; very thick fibers make the rug look coarse.
• Density: the number of fibers per unit area; the higher it is, the fuller the surface looks.
• Bend: whether the fibers stand straight or bend under gravity.

When you adjust these values, picture a real rug. On a shaggy rug, the fibers never stand perfectly straight or point the same way. So a slight bend and some randomness make the result much more natural. Also look at the areas near the edges of the rug; fibers that are a little messier there add realism.

Be careful with density. As the fiber count goes up, the image looks better, but the render time also gets longer. So run tests with low density first, then raise the value for the final image.

Light also plays a special role on furry surfaces. Soft light from the side brings out the shadows between the fibers and gives the rug depth. Harsh light from above flattens the texture. So placing the rug where window light hits it from the side clearly improves the result.

The rug’s material matters as much as the fibers. SketchUp V-Ray Fur carries the material of the underlying surface onto the fibers. So choosing the right color and texture for the rug directly affects how convincing the result is.

To draw the rug surface at the right size on the SketchUp side, the official SketchUp Help Center will also help.

Related lessons

• For the whole interior, start the high-quality interior visualization course series.
• For material logic, take a look at the how materials work physically lesson.
• To build your own material, the creating a material from scratch lesson is ready.
• We gathered our other V-Ray content on our V-Ray videos page.
• All our render content is on our render guide page.

Frequently asked questions

Why is using Fur better than modeling the rug fibers?

Modeling the fibers one by one makes the file very heavy. Fur generates the fibers at render time, so your model stays light.

Does Fur increase render time?

Yes, especially when the density is high. So run your test renders at low density.

Do I need to change the Fur settings for every rug?

Usually yes, because every rug has a different pile length and texture. Still, if you save a setting you like, you can use it as a starting point in later projects.

Is Fur only for rugs?

No. You can use the same method on many surfaces, such as grass, fur, plush fabric and fluffy cushions.