Build-in effects - Semi-transparent

Last edited 2026-02-27

This effect provides transparency. It is not recommended to use this effect because Alpha Coeff has 256 levels of visibility instead of 128, and Alpha Coeff is also faster.

Input data:

• Self (Main texture of the object/layer, depending on where you apply the effect; contains information about Red, Green, Blue, Alpha)
• Background (Second texture that contains information about Red, Green, Blue, Alpha* pixels that are underneath Self)
• Coeff (An integer variable ranging from 0 to 127 controlling visibility)

Output data:

• Render (Red, Green, Blue, Alpha colors that will be displayed on the screen)

Example written in pseudocode:
load float4 Self;                                                        // LOAD main texture
load float4 Background;                                                // LOAD texture underneath main texture

global int Coeff;                                                        // LOAD global variable controlling visibility

int4 SelfInt = ceil(Self * 255) * (128 - Coeff);                // Conversion of float to int of color Self and multiplication by differences from Coeff
int4 BackgroundInt = ceil(Background * 255) * Coeff;                // Conversion of float to int of color Background and multiplication by Coeff

int4 RenderInt = ceil((SelfInt + BackgroundInt) / 128);        // Calculating the average

float4 Render = float4(RenderInt / 255.0f);                        // Converting the result from int to float and normalizing so that colors are in the range from 0.0 to 1.0

return Render;                                                        // Return the Render

Examples of recreation effects created by the community:

1. Semi-Transparent (Background) by Foxioo; It does the same shader but has more options for modifying the color output.

The meaning of colors in the Type column:

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