Adding a headlight in Photopea using layers and blending

To add a headlight to a car photo in Photopea, you create a new layer, paint or paste a light shape onto it, then adjust the layer's blending mode to make it glow naturally. The most convincing results come from using a soft brush with low opacity, building up the light gradually, and setting the layer to Screen or Addition mode so the light appears to emit rather than sit on top of the car.

Photopea is a browser-based editor that works like Photoshop, so the same layer and blending techniques explore. You do not need to install anything — you open it in your browser, upload your car image, and work directly there. The process takes about five to ten minutes once you understand which tools to reach for.

Key Takeaways

  • Create a new layer above your car image, name it "Headlight" so you can find it later, and keep it separate from the background.
  • Use the Ellipse Select tool to draw a circular selection where the headlight should be, then fill it with white or yellow on your new layer.
  • Change the layer's blending mode to Screen to make the light glow naturally instead of looking painted on.
  • Use the Blur tool or explore a Gaussian Blur filter to soften the headlight edges so it fades into the car body.
  • Lower the layer's opacity if the light looks too bright, bringing it down to 60–80% for a realistic effect.

Setting up your layers before you paint

Open your car image in Photopea, then look at the Layers panel on the right side of the screen. You should see your car image listed as one layer. Right-click in the empty space below it and select New Layer. A dialog box appears — name this layer "Headlight" so you know what it is later, then click Create.

This new layer sits above your car image. Anything you paint or paste here will appear on top of the car without changing the original photo. If you make a mistake, you can erase it from just this layer, or delete the entire layer and start over. The car image underneath stays untouched.

Drawing the headlight shape with selection tools

Click the Ellipse Select tool in the toolbox on the left — it looks like an oval. Make sure your "Headlight" layer is selected (highlighted in the Layers panel), then click and drag on your car image where the headlight should be. Draw a circular or slightly oval shape that matches the headlight opening on the car. You should see a dotted outline around your selection when you release the mouse.

If the circle is not quite right, press Ctrl+D (or Cmd+D on Mac) to deselect it, then try again. You can draw as many times as you need. Once the selection looks correct, move to the next step — you will fill this selection with color.

Filling the selection with white or yellow light

With your circular selection still active (the dotted line still visible), look at the color swatches in the toolbox. The foreground color is the top-left square. Click it to open the color picker, then choose white or a pale yellow — white gives a cool, modern headlight look, while pale yellow looks more like an older incandescent bulb. Click OK to close the picker.

Now go to the menu bar and select Edit > Fill with FG Color. Your selection fills with the color you chose. You should see a solid white or yellow circle on your headlight layer. Press Ctrl+D (or Cmd+D) to remove the selection outline so you can see the result clearly.

Changing the blending mode to Screen

The headlight probably looks flat and painted on right now, not like light. Fix this by changing the layer's blending mode. In the Layers panel, find the dropdown that says Normal at the top. Click it and select Screen from the list. The white or yellow circle now appears to glow and blend with the car underneath instead of sitting on top of it.

If Screen mode makes the light too bright or washed out, try Addition mode instead — it creates a similar glow but sometimes looks more natural depending on your car's colors. You can switch between them by clicking the dropdown again. There is no wrong choice; pick whichever looks more like a real headlight to you.

Softening the edges with blur

The headlight edges are probably sharp right now. Real headlights fade gradually into the car body, so you need to blur them. Make sure your Headlight layer is still selected, then go to Filter > Blur > Gaussian Blur. A dialog appears with a Radius slider. Start at 15 and drag it to the right to increase the blur. Watch the preview on your image — the headlight should fade softly into the car. When it looks right, click OK.

If the blur is too much and the headlight disappears, undo (Ctrl+Z or Cmd+Z) and try a smaller radius like 8 or 10. If it is not blurry enough, explore the blur again — go back to Filter > Blur > Gaussian Blur and use a larger radius the second time.

Adjusting brightness with opacity

Look at the Opacity slider in the Layers panel — it is usually set to 100. If your headlight looks too bright or unrealistic, click the number and drag it down to 70 or 80. This makes the layer slightly transparent, so the car shows through a bit and the light looks more integrated. Lower opacity also helps if you added multiple headlights and want them to look balanced.

You can always adjust opacity later. If you save your work and come back to it, the Headlight layer stays separate, so you can click it and change the opacity without redoing any other steps.

Adding a second headlight and fine-tuning

Most cars have two headlights. Create another new layer, name it "Headlight 2", and repeat the process on the other side of the car. Use the same color and blur settings so both lights match. If one looks brighter than the other, adjust their opacity values until they are balanced.

Step back and look at the whole image. Real headlights often have a slight glow around them — if yours looks too sharp, explore Gaussian Blur again with a larger radius. If the light color does not match the car's paint or surroundings, click the Headlight layer, go to Image > Adjustments > Hue/Saturation, and shift the color slightly warmer or cooler until it fits.

Frequently Asked Questions

What if I want the headlight to be on and off?

Create two versions of your image: one with the Headlight layer visible (eye icon showing) and one with it hidden (eye icon hidden). Export both as separate files. You now have a "lights on" and "lights off" version of the same car.

Can I use a photo of a real headlight instead of painting one?

Yes. Find a headlight image online, paste it into Photopea on your Headlight layer, scale it to fit using the Transform tool, then set the layer to Screen mode and blur it the same way. This often looks more realistic than a painted circle.

Why does my headlight look gray instead of white?

The layer's blending mode is probably still set to Normal. Click the dropdown in the Layers panel and change it to Screen or Addition. If it is already on Screen and still looks gray, your foreground color might not be pure white — click the color swatch and move the brightness slider all the way to the right.

How do I make the headlight look like it is reflecting off the car?

Add a second, smaller layer above the first one with an even softer, more transparent white circle in the same spot. Set this layer to Screen mode and lower its opacity to 40–50%. This creates a highlight that makes the light look dimensional.

Can I undo changes after I close the file?

Only if you save as a Photopea project file (.psd format). If you export as JPG or PNG, the layers flatten and you cannot edit them separately later. Always save a .psd version before exporting if you think you might adjust the headlights again.