Guides

How to prepare pebble and small rock samples for rendering

Updated October 13, 2026

What to upload

A swatch of the stones spread on the ground: a close, evenly lit image of the layer from above. Renders lay them where the ground is in your scene, such as a bed, a border or a dry creek, each stone a solid with its own shape: rounded or angular as your sample is, catching the light on top and casting a small shadow where it rests.

Pebbles aren't repeated into a tile. Renders vary the stones in color, size and shape the way your sample does, so no patch repeats in a visible grid.

A lifestyle image of the stones laid is optional. It shows renders how they behave in real light, and nothing else in it is copied.

The ideal sample

A patch of the real layer, as it lies once spread.

  • One layer of stones filling the frame, with no bag, tray or edging showing.
  • Close enough to see each stone's shape, wide enough to show a dozen or more.
  • From straight above.
  • Soft, even light, so each stone's shape shows without black gaps between them.
  • Dry, unless you sell them for a polished or wet look. Wet river rock is darker and glossier than what arrives.
  • True color, with no filter or edit.
  • Do this: Ideal

    An even layer, from above, true color.

  • Avoid: One stone up close

    Nothing to vary, and no size to read.

  • Avoid: At an angle

    The stones shrink toward the back.

  • Avoid: Hard shadow

    One side of the bed comes out darker.

  • Avoid: Wet shine

    A glossy stone reads as a paler one.

  • Avoid: Color cast

    Gray river rock comes out warm.

Illustrations: the same sample each time, with one thing changed.

Measurements

One number sets the scale: how big a stone is, read against the steps, edging and plants in the scene.

  • Width, in inches: a typical stone, across.
  • Sold as a range, such as 1 to 3 inches? Enter the middle: 2.
  • Left blank, a stone is drawn about 1.5 inches across.
  • Height and depth aren't used for pebbles, and nor is the pattern repeat.

Before you save

Check each sample:

  • One layer filling the frame, each stone's shape clear.
  • Straight from above, soft light, dry.
  • The typical mix of sizes and colors, true color.
  • Stone size entered, in inches.
  • JPEG, PNG or WebP, 4.5 MB or less.

Create your workspace, then choose a plan to render a few of your stones before you prepare the rest.

Get started