Debug One Invocation

Enable debugging on the node, then call enableDebug() for the invocation you want to inspect.

import { volten, Buffer, Kernel, Uniform } from '@volten/core';

const v = await volten();

const inout = new Buffer([1, 2, 3, 4], 'f32', 'rw');
const mult = new Uniform(10, 'f32');

const kernel = new Kernel(`
  fn main(gid: vec3u) {
    inout[gid.x] = inout[gid.x] * mult;

    if (gid.x == 2u) {
      enableDebug();
    }

    // Only gid.x == 2u emits this log.
    debugF32("value", inout[gid.x]);
  }
`);

const node = v.pass(kernel, { inout, mult }, { debug: true });
v.run(node);

const debug = await v.readDebug(node);
debug.print();

Console output:

[2,0,0] value: 30

Learn more: Debugging Overview, Shader Logs, v.readDebug().