Diffuse Component
Applies diffuse color to the rendered surface based on a provided texture.
Asset requirements
diffuse texture – RGBA texture. The diffuse texture holds diffuse color info of the rendered surface stored in RGB channels.
Alpha channel is used to specify transparency
0 (black) areas for full transparency
towards 255 (white) surfaces get increasingly opaque.
Note!
Using Alpha cahnnel as a transparency control over the rendered mesh is not enough to get the desired effect. You’ll need to switch the render queue to Blended or Alpha Test.