Adding Emissions to Custom Textures

Objective: Adding Emission to custom texture.

Adding Emission to Texture

In the first step select your object and open the shader setting and adjust the option for emission, then double click texture map for that object and open it on explore. Then drag and drop that texture to the photo manipulation app.

Note: In order for this to work your fbx must have an alpha channel for this texture.

In the following step, I will go to the gimp and select the transparency part of this texture, to do this go to Layer < Transparency <Alpha to Selection. This will select the part which needs to emit light.

Now I will create a new layer and go to select <invert, then I will select fill tool and choose color for it and fill the transparency part to 100 by double clicking that part twice or more.

In the following step create a new layer below the above layer and adjust its foreground color to black.

Export the above file as a png also rename it differently from the first file.

Now go to unity and select that object and drag and drop the texture we create to the emission channel. Then you can adjust the color and intensity of the emission option using the color wheel in unity.

Adding Emission using 3D software.

Why do this? some geometry or 3d objects are complicated, so their emission is hard to modify using a graphical manipulation Application.

This step will be adding emission to FBX using 3D software, I will do this in the future after spending some time with the blender, I like blender.

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Suleiman Abdullah

Self taught Unity Developer, who is passion about making games ,and he loves Math For Game Development