Tutorials

The following link is to my main Youtube instructional page:

Mayet Andreassen Youtube Channel

Tutorial: An introduction to Lights using Arnold

Using Simple Lights in Arnold

Tutorial: How to properly make an object transparent, and apply a texture with an Alpha using Arnold

Applying Alpha maps using Arnold

Tutorial: How to attach a roughness map using Arnold

Attaching a Roughness Map in Arnold

Tutorial: How to Create an Emissive Map in Maya and Photoshop

IN PHOTOSHOP

1.       Open up your color/diffuse texture in photoshop

2.      Make a new layer that is Black

3.      Make sure the area where you want glows to be is filled with your glows.  They can be in color or white.

Figure 1- Emissive texture Example

4.      Save as a 24 bit Targa file.

IN MAYA

1.       Open up Maya

2.      Go to the shader that you want to add a glow to.

3.      Go to the Incandescent channel and click on the checkerboard icon

a.   Attach the Emissive Targa

4.     Now go to your Special Effects > Glow attribute

Figure 2 - Incandescent and Glow Channels

5.      Click on its checkerboard icon and add the Emissive Targa here as well

a.      To really manipulate the glow, go to the Targa file in Maya that is attached to the Glow attribute and twirl down your Color Balance options.

b.      Make sure to check on Alpha is Luminance

Figure 3- Color Balance section

c.       To change the intensity of the glow, lower or raise the Alpha Gain

d.      If your used a black and white emissive map and want to now add color to your glows, change the color of the Color Gain channel

The below images are a render without the emissive map, and a render with the emissive map (and with a spec map)

Figure 4- WITHOUT Emissive map

Figure 5- WITH Emissive and Spec maps