Tour of WGSL

Function Calls

Functions can be declared in any order.

Function calls cannot be recursive, either directly:

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fn a() {
  a(); // error
}

or indirectly:

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fn a() {
  b(); // error
}
fn b() {
  a(); // error
}

// WGSL does not require functions to be declared before usage

fn a() {
  b(); // 'a' can call 'b' ...
}

fn b() {
  // ...even when 'b' is declared after 'a'
}