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3D painting

How to Make a 3D Painting: 13 Steps for a Textured Relief Artwork

Make a physical 3D painting by building raised forms with modeling paste on a compatible support, drying layers gradually, and using highlights and shadows to clarify the relief. Product support and drying directions vary, so check the label for your paste.

By ThatPainter Team 5 min read
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To make a physical 3D painting, build raised forms on a support compatible with your modeling paste, let each layer dry, then use highlights and shadows to make the relief read clearly. This 13-step guide covers a textured relief artwork, not digital texture painting.

Modeling paste or a suitable acrylic texture medium creates actual height; directional light and value contrast help the eye read that form. Follow the instructions for your specific product, since support requirements and drying times vary.

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Materials for a 3D relief painting

  • Support: choose one listed as suitable on your modeling paste label. A rigid panel is a safe starting point for Liquitex Professional Modeling Paste; other products may list canvas, wood, paper, or additional supports.
  • Surface preparation materials: acrylic gesso or binder if appropriate for your support and product instructions.
  • A pencil, chalk, or transfer paper: for laying out the design.
  • Acrylic modeling paste or suitable texture medium: check its support compatibility and directions for layering and drying.
  • Palette knife: for spreading and shaping the paste.
  • Optional texture tools: a comb, fork, rag, coin, or other objects for making marks.
  • Acrylic paint: to tint the paste if its directions allow, or to paint the dried relief.
  • Brushes: including a dry brush for highlighting raised areas.

Modeling paste may be mixed with acrylic color or painted after it dries, depending on the product directions. No particular brand is required: choose a paste suitable for your intended support and follow its label.

How to make a 3D painting in 13 steps

1. Choose the physical-relief approach

This tutorial is for a physical artwork with paste-built raised texture or low relief. Painting texture onto a digital 3D model is a different process.

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2. Choose a simple subject

Start with broad, recognizable shapes such as flowers, leaves, waves, or abstract forms. Keeping the first design simple makes it easier to control the relief.

3. Pick a compatible support

Check the paste label before choosing a support. Liquitex Professional Modeling Paste is directed for rigid supports, while Royal Talens Amsterdam Modeling Paste lists several absorbent surfaces, including canvas, wood, plywood, cardboard, and paper. Product guidance differs, so do not assume one support works with every paste.

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4. Prepare the surface

Make sure the surface is clean and free of dust and grease. For very absorbent surfaces, Royal Talens specifies applying Amsterdam acrylic binder first. Follow the preparation instructions for your chosen product and support.

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5. Gather the paste and tools

Set out the modeling paste, a palette or painting knife, acrylic paint if you plan to tint or paint the relief, and any tools for making marks. A comb or fork can create lines, ridges, and grooves.

6. Sketch the major forms

Lightly map the main shapes and the areas that will be raised. Treat the sketch as a guide rather than adding details that the paste may obscure.

7. Lay in the first thin layer

Spread a thin layer with the knife, establishing the broad shapes before building height. Work on a clean surface prepared according to the product directions.

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8. Make marks while the paste is workable

Use a comb for straight or wavy lines, a fork for ridges and grooves, or another tool for impressions. Avoid excessive reworking: it can flatten the characteristic peaks of the texture.

9. Let the layer dry

Let the layer dry before adding more paste. Drying time depends on the product and layer thickness; Royal Talens describes its paste as drying in a few hours, depending on thickness. Treat that as product-specific guidance, not a universal timetable.

10. Add further layers gradually

Build the raised forms in successive layers, allowing each to dry. Liquitex says sculptural layers of its Professional Modeling Paste should be no more than a quarter of an inch thick. This is guidance for that product, not a rule for every texture medium. Liquitex also recommends slow drying to help reduce shrinkage cracks.

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11. Repair small cracks after drying

If a crack appears, let it dry before repairing it. Liquitex’s guidance for Basics Modeling Paste advises filling a dried crack with another thin layer. Check the directions for your own formula before using that repair approach.

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12. Add color and clarify the form

Once the relief has dried, paint it, or tint the paste beforehand if its directions allow. Use darker colors in recesses and lighter colors on raised areas, keeping the highlight direction consistent. A light dry-brush pass can catch the peaks without filling every groove.

13. Finish according to the product directions

Let the paint and relief dry as directed. If you plan to apply a protective finish, choose one compatible with the materials and follow its label. Do not rely on a universal varnish type or cure time; requirements vary by product and conditions.

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Choosing a support and building the relief

Consideration What to check
Support compatibility Follow the paste maker’s list. Liquitex Professional Modeling Paste specifies rigid supports; Royal Talens Amsterdam Modeling Paste lists multiple absorbent supports.
Layer thickness Use thin layers and let them dry. Liquitex specifies no more than a quarter of an inch per layer for its Professional Modeling Paste.
Drying Allow each layer to dry. Timing depends on product and thickness; follow the label rather than assuming a fixed time.
Texture A palette knife spreads paste; a comb or fork can make lines, ridges, and grooves. Excessive reworking can flatten peaks.

Frequently Asked Questions

What makes a painting 3D?

In this guide, it means a physical artwork with raised texture or low relief. Modeling paste or a suitable acrylic texture medium creates the height, while light and value contrast help make the form visible.

Can I use modeling paste on canvas?

It depends on the product. Check the support directions: Liquitex Professional Modeling Paste specifies rigid supports, while Royal Talens Amsterdam Modeling Paste lists canvas among its suitable supports.

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How thick should each layer be?

Follow the instructions for your specific paste. Liquitex recommends layers no thicker than a quarter of an inch for its Professional Modeling Paste; that limit is product-specific.

How long does modeling paste take to dry?

Drying depends on the product and layer thickness. Royal Talens describes its Amsterdam Modeling Paste as drying in a few hours depending on thickness, but other products or applications may take longer. Follow the maker’s instructions.

Can I paint over modeling paste?

Liquitex says its Professional Modeling Paste can be painted once dry, and Royal Talens says its Amsterdam Modeling Paste is suitable for acrylic and oil paints. Check the directions for your chosen product.

How can I keep the relief from looking flat?

Use directional highlights and shadows: place darker color in grooves and lighter color on raised areas. Keep the contrast consistent with the light direction you have chosen.

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