Priya Kapoor
To create emissive maps in Substance Painter, you need to add an emissive channel to the object and then paint on its surface. You can increase the emissive intensity in the viewer settings and create an emissive channel in your layer stack to modulate it. You can also enable post-effects and change the glare settings to enhance the effect. Additionally, you can use the in-built game renderer in Substance Painter to better visualize the emissive material. To export the emissive textures, go to File > Export Textures, which offers various options, including Texture Packing, to efficiently export multiple textures.
| Characteristics | Values |
|---|---|
| To add an emissive material in Substance Painter | Add an emissive channel to the object, then paint on the surface |
| To increase emissive intensity | Go to viewer settings and increase the emissive intensity, then create an emissive channel in your layer stack to modulate it |
| To make the object glow | Add an output node, change the identifier and label to Emissive, and plug in whatever you like |
| To export emissive file to Maya | Add an emissive channel to your texture set |
| To view the object | Apply the in-built game renderer in Substance Painter and add post effects like glare and luminance |
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What You'll Learn
Emissive channel creation
To create an emissive channel in Substance Painter, you must first add an emissive channel to the object and then paint on its surface. You can increase the emissive intensity in the viewer settings and create an emissive channel in your layer stack to modulate it. You can also enable post-effects and change the glare settings to enhance the effect.
To export textures from Substance Painter, go to File > Export Textures. There are various ways to organize your textures, and you can use the built-in option for exporting to the Unreal Engine. Substance Painter and Unreal Engine support texture packing, which is a more efficient way to export textures.
Emissive maps can be added to a base material in Substance Designer by following these steps:
- Right-click on the base material node and open the reference (or use the Ctrl+E shortcut).
- Add an output node to the reference graph and set the identifier to "emissive" and the label to "Emissive".
- Duplicate an existing input node and change the identifier and label to "Emissive" and "emissive_input", respectively. Also, change the "Visible If" setting to "input ["user_emissive"] && input ["pbr_workflow"]==0".
- Connect the input emissive node to the output emissive node.
It is important to note that emission may not always be easily visible. To address this, you can apply the built-in game renderer in Substance Painter to view the object as it would appear in the game. Additionally, you can add post-effects like glare and luminance to enhance the visibility of the emission.
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Painting the surface
To paint emissive maps in Substance Painter, you need to add an emissive channel to the object and then paint on its surface. This can be done by going to Material > Default > Edit in the 3D view. You can also increase the emissive intensity in the viewer settings and create an emissive channel in your layer stack to modulate it. Additionally, you can enable post-effects and change the glare settings to enhance the effect.
When painting the surface, it's important to note that emissive materials only work with greyscale images. You can use the in-built game renderer in Substance Painter to view the object as it would appear in the game. Applying post-effects like glare and luminance can also help visualize the emission. To ensure the emission is visible, consider using a light source as emission may not always be easy to see.
For a more advanced approach, you can add an emissive output to a graph by creating an output node and changing the identifier and label to "Emissive". You can then plug in the desired input. If you want to add an emissive output to the Base Material node, there are a few extra steps. First, right-click on the base material node and open the reference graph (or use Ctrl+E). Next, add an output node to the reference graph and set the identifier and label to "Emissive". Duplicate an existing input node and make similar changes to the identifier and label, setting Visible If to input ["user_emissive"] && input ["pbr_workflow"]==0. Finally, connect the input and output emissive nodes.
Once you have painted the emissive map on the object's surface, you can export the textures by going to File > Export Textures. This will allow you to bring the object into game engines like Unreal Engine. Substance Painter supports Texture Packing, which is an efficient way to export textures by placing greyscale images in the RGB channels.
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Exporting textures
Before exporting, the List of Exports tab displays the maps currently set to export. After exporting, the Console shows the export's progress. You can also use the Open output directory to quickly open a file browser to the export location.
Substance Painter exports to a variety of file formats. The supported formats depend on the file format, and a higher bit depth will provide a higher-quality texture but will also increase file sizes. Some applications do not support high bit depths, so a lower value may be required. For PSD files, each texture set from a project is exported as a single PSD file, containing the exported textures associated with the texture set.
When exporting textures, you may encounter issues such as textures appearing broken or different from what you see in Substance Painter. This may be due to multiple texture sets and UDIMs, with Painter writing out one texture per texture set and appending random numbers to extra textures. Switching to no padding in the export settings can help resolve issues with UVs on export.
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Adjusting viewer settings
To begin working with emissive maps in Substance Painter, you need to add an emissive channel to the object. This can be done by navigating to the viewer settings and increasing the Emissive Intensity. You can then create an emissive channel in your layer stack to modulate the effect. Play around with the Emissive Intensity to achieve the desired level of emission.
The emission effect might not always be easily visible. To address this, you can utilise the built-in game renderer in Substance Painter to view the object as it would appear in a game engine. This provides a more accurate representation of the emissive effect. Additionally, you can enhance the effect by enabling post-effects and adjusting the Glare settings. Experiment with different post-effects, such as glare and luminance, to achieve the desired look.
It's important to understand that emissive maps work in conjunction with light sources. Ensure that your scene includes appropriate lighting to showcase the emissive properties effectively. The interaction between emissive materials and light sources will influence the final appearance of your object.
When exporting your textures, navigate to File > Export Textures in Substance Painter. This provides various options for organising your textures, including the built-in option for exporting to Unreal Engine. Alternatively, you can explore Texture Packing, which allows for a more efficient export process by combining multiple greyscale images into the channels of an RGB texture.
By following these steps and adjusting the viewer settings in Substance Painter, you can effectively work with emissive maps and achieve the desired emissive effects for your objects.
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Emissive intensity
Emissive maps in Substance Painter are used to create glowing effects on 3D objects. To increase the emissive intensity, you can adjust the viewer settings and create an emissive channel in your layer stack. This emissive channel can be modulated to control the intensity of the effect. Additionally, enabling post-effects and modifying the Glare settings can further enhance the emissive appearance.
When working with emissive maps, it's important to understand that they are typically applied on top of the base colour map. This means that the emissive map determines where on the object's surface the emission effect will occur and what colour it will be. To achieve the desired result, you may need to experiment with different settings and adjustments.
In some cases, you might encounter challenges when exporting emissive maps from Substance Painter to other software, such as Maya. To resolve this, ensure that your texture set includes an emissive channel. Additionally, consider the lighting conditions, as emissive effects are influenced by the presence of light sources in your scene.
To create an emissive map in Substance Designer, you can follow specific steps. Right-click on the base material node and open the reference graph. Add an output node and set the identifier and label to "Emissive". Duplicate an existing input node, rename it to "emissive_input", and make the necessary adjustments to connect the input and output emissive nodes. These steps will allow you to add an emissive output to the Base Material node.
By following these guidelines, you can effectively work with emissive maps in Substance Painter and Substance Designer, creating glowing effects and enhancing the visual appeal of your 3D objects.
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Frequently asked questions
To add an emissive map in Substance Painter, you need to add an emissive channel to your object and then paint on its surface. You can also increase the Emissive Intensity in the viewer settings and create an emissive channel in your layer stack to modulate it.
To export textures from Substance Painter, go to File > Export Textures. There are many different ways to organise your textures, including an in-built option for exporting to the Unreal Engine.
Sometimes the emissive effect can be hard to see. To increase visibility, you can apply the in-built game renderer in Substance Painter to view the object as it would appear in-game. You can also add post-effects like glare and luminance.
To make your emissive map render as emissive, you need to put the emissive map into the material alongside your other texture maps. Different programs like Maya, Blender, Unity, and Unreal Engine have their own unique steps to achieve the desired emission effect.
