How to insert and paint 3D models in 3D paint

Paint 3D models using the built-in brushes, marker, pen and more

Paint 3D is pretty simple when it comes to opening images, and the painting tools are easily accessible and easy to customize before use.

When you insert a photo, whether it’s a 2D photo or a 3D model, you’re given the flexibility to use it immediately with the current canvas you’re already opening. This is different from opening the file normally, which will start you with a new separate cloth.

Once you have the objects you want on your canvas, you can use the built-in brushes and other painting to paint directly on your models.

How to paint models in 3D

You can 2D images you in 3D would convert (or in 2D remain), as well as alphabetical 3D models, either from your computer or from Remix 3D:

Insert Local 2D or 3D images

  1. Go to the menubutton at the top left of Paint 3D.
  2. Select Add.
  3. Select the file you want to import into the canvas you are currently opening.
  4. Click or tap the Open

You can import many file types this way, both 2D images in PNG , JPG , JFIF, GIF , TIF / TIFF and ICO format; as well as 3D models in the 3MF, FBX, STL, PLY, OBJ and CAP file format.

Insert online 3D models

  1. Select the Remix 3Dbutton in the top menu in Paint 3D.
  2. Search or browse for the 3D object you want to use.
  3. Tap or click it to immediately insert it onto your canvas.

See What is Remix 3D? For more information on this community, as well as information on how to upload your own 3D models there, which you can download again later with the steps above.

How to paint 3D models with paint 3D

All the paint 3D brushes and matching options are available via the Art tools icon from the menu at the top of the program. So you paint on anything in Paint 3D; whether you fill in the lines of your 2D image or add a splash of color to a 3D object you have built .

As you enlarge a 3D image, it’s only natural that parts of it are hidden or not easily accessible. You can use the 3D rotary knob at the bottom of the canvas to paint the object in a 3D space.

You need to choose the right tool that serves the purpose you are looking for. Here is a description of each that can help you choose the right one for your scenario:

  • Marker:The marker has a uniform strip wherever it is used, and has a clean, full look on it. It is similar to the pixel pen tool, except that it will bleed parts of the color into nearby pixels for a softer approach. Neighboring points that are just out of reach are lightly colored.
  • Calligraphy pen:This tool works as you would expect a calligraphy pen to work. Its effect is much like the marker, except that the thickness of the stroke changes as you speed up and slow down the pen’s movement.
  • Oil brush:The oil brush tool gives a real brush look. It has a “thicker” and more pixelated effect that hides the background image much more than the marker.
  • Watercolor:Use the watercolor brush if you need an effect where the color should be tired over some areas but darker over others. It is very easy to obscure the color of the watercolor brush by brushing over the same area just over once. It is similar to the spray bar, except that the edges are not so soft.
  • Pixel pen:The pixel pen looks almost identical to the marker except that the pixel pen as opposed to the marker reaches half of each pixel. It creates a very uniform look that does not even bleed off a bit in any other pixel, resulting in rigid edges, but it also makes it easy to paint quickly along solid lines.
  • Pencil:The pencil is for a freehand look as it only extends between 5px and 10px.
  • Eraser:The eraser, despite its name, does not erase what you have already drawn, so parts of the model will return to a previous state (use History for this). Instead, the eraser tool removes any modification to the model while keeping the object intact, useful for starting over without any designs or colors.
  • Chalk:The chalk makes a lime, almost wet appearance. Edges are similar to the marker, as nearby pixels are partially opaque, but they are different in lines because even the center of the strokes is not fully colored (unless you color them multiple times).
  • Spray Channel:This tool is a lot like the watercolor brush, except that you can hold it in one place to fill the space with more color, like a real spray can. Edges are soft as the marker.
  • Fill:The fill tool is a quick way to fill an area with color. Adjust the tolerance setting to determine how much of the image should be colored. A smaller value like 0% will only fill in color just a handful of pixels around where you choose, while something larger like 5% can fill in a small area like a circle and 100% will change the color of the whole object.

Tolerance and Transparency

All the paint tools (except Fill ) let you adjust the thickness of the brush so you can control how many pixels need to be colored at once. Some tools let you choose as small as a 1px area to color with each stroke.

Transparency explains the level of transparency of the instrument, where 0% is completely transparent . For example, if the transparency of the marker is set to 10%, it will be very light, while 100% will display its full color.

Matte, gloss and metal effects

Every art tool in Paint 3D can have a matte, glossy, dull metal or polished metal texture effect.

The metal options are useful for things like rust or copper. Rugs provide a regular color effect while the glossy texture is a bit darker and looks more shiny.

Choose a color

On the sidebar, under the textures options, is where you choose the color that the Paint 3D tool should use.

You can select any of the preselected colors from the 18 menu or select a temporary current color by tapping or tapping on the color bar. From there you can define the color with its RGB or hex values.

Use the Eyedropper tool to select a color from the canvas. This is an easy way to paint the same color as already exists on the model when you are not sure what color was used.

To use your own custom colors later, select the Add color plus sign below the colors. You can make up to six.


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