GLSL Not Function

The not function in GLSL is used to perform the logical negation (i.e., inverse) operation on a boolean value. Its syntax is as follows:

bool not(bool x)

Parameters

The not function takes a single parameter, which must be a boolean value (true or false) represented by the bool data type.

Return Value

The not function returns the logical inverse (i.e., negation) of the boolean value passed to it. If the input value is true, not will return false, and vice versa.

Example Usage

The following example demonstrates the usage of the not function:

bool x = true;
bool y = not(x);  // y is now false

Notes

• In GLSL, true and false are represented by the bool data type, which is a built-in data type in the language.
• The not function can be used in combination with other logical operators (such as and, or, and xor) to create more complex logical expressions.