Blend Mode
Blend Mode instructs how the current material will blend with the background.
| Blend Mode | Support Material | Description | Expression | Preview |
|---|---|---|---|---|
| Multiply | Standard PBR, Unlit | The multiply blend mode returns a color that multiplies the values per channel of the base and blend modes. This results in a darker color. Multiplying a base color with a blend color of black will always result in a black color. Multiplying a base color with a blend color of white will always result in the base color returned. | a*b |  |
| Overlay | Standard PBR, Unlit | The overlay blend mode uses the screen blend mode on lighter pixels and the multiply blend mode on darker pixels, this produces brighter brights and darker darks. | 2ab (if a<0.5) 1–2(1–a)(1–b) (if a>=0.5) |  |
| Screen | Standard PBR, Unlit | The screen blend mode inverts the base color and multiplies it with the blend color. The result is a brighter pixel. | 1–(1–a)(1–b) |  |
| Soft Light | Standard PBR, Unlit | The soft light effect uses the darken or lighten blend mode depending on the luminance value. It is similar to overlay but with a softer result. |  | |
| Color Burn | Standard PBR, Unlit | The color burn blend mode is similar to the multiply blend mode but increases contrast, saturation, and lowers highlights. | 1–(1–b)/a |  |
| Color Dodge | Standard PBR, Unlit | The color dodge blend mode produces brighter colors in the base color with reduced contrast. This results in saturated mid-tones and blown highlights. | b / (1 – a) |  |
| Darken | Standard PBR, Unlit | The darken color mode compares the base layer color to the blend layer color and returns the darker of the two colors. | min(a,b) |  |
| Difference | Standard PBR, Unlit | The difference blend mode subtracts the blend color from the base color and returns that result. |  | |
| Exclusion | Standard PBR, Unlit | The exclusion blend mode causes inverted colors when blended with the color white, and no change when blended with black. Blending with an even gray will produce a gray result. |  | |
| Lighten | Standard PBR, Unlit | The lighten blend mode compares the base color and the blend color and returns the lighter of the two colors. | max(a.b) |  |
| Linear Dodge (Add) | Standard PBR, Unlit | The linear dodge, also known as the “Add” blend mode, blends the base and blend colors by returning the sum of the two colors. | a+b |  |
| AlphaTest | Standard PBR, Unlit | The alpha test implementation set an alpha threshold(0.5). For alpha value greater than the threshold, it will go 100% opaque, otherwise 100% transparent. | Alpha = 0, (if alpha < 0.5) Alpha = 1.0 (if alpha >= 0.5) |  |
| Normal | All build-in materials | Edits or paints each pixel to make it the result color. | a = aAlpha = 1.0 |  |
| Transparent | All build-in materials | Edits or paints each pixel to make it the result color and open the alpha channel. | a = a |  |