Working with Emissive

Working with Emissive (Luminous Amount and Color)

Substance can have an optional emissive output. You can use this as Luminous Amount and Color in MODO. When you enable emissive output, it will be set to the Luminous Amount effect. By default, this channel is interpreted as Linear under the Texture Image Still tab.
Right-click the texture in the Shader tree and choose duplicate. Then, set the duplicated emissive texture to the Luminous Color effect. You can then make changes to the high and low value for the texture driving the Luminous Amount effect to further intensify the value.

To get a bloom effect, you need to enable Bloom in the Render panel and set the Threshold and Radius.

For the Unreal and Unity materials, the Emissive output is handled specifically by the material.
Unreal = Unreal Emissive
Unity = Unity Emission

The Unreal Emissive and Unity Emission textures need to be changed from Linear to sRGB in the Image Still tab.