Viewport execution

webgl.viewport-response

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Results

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Signal properties and values
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JSON

Selected signal results for external comparison. Field statuses, controls and exact values are retained.

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Source

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// Test source pending.

Definition

Typed limits, clamping and analytic edge rendering on a tiny framebuffer; native small maxima are valid.

Find it in the repository

Collector source: core/signals/webgl/viewport-response.ts
Export: measurementModule · Signal object
Field definitions: core/definitions/webgl/viewport-response.ts
Capture membership: Product capture · common/capture/product.ts
Page registration: app/signals/registry.ts
Field projection: core/results/measurement.ts

Execution contract

Signal: webgl.viewport-response
Collector: webgl.viewport-response
API / surface: core/signals/webgl/viewport-response.ts
Timeout: 1500 ms
Companion signals: None
Fixture inputs: Declared requests (listed below)

Exact request inputs

[
  {
    "key": "webgl.viewport-response.responses",
    "inputs": {
      "webgl": {
        "api": "webgl",
        "framebuffer": [
          8,
          8
        ],
        "ceiling": 32768,
        "maxCases": 16,
        "dimensions": [
          8192,
          16384,
          32767
        ],
        "axes": [
          "x",
          "y",
          "xy"
        ],
        "boundary": "reported limit and limit+1 within ceiling",
        "vertex": "attribute vec2 position;void main(){gl_Position=vec4(position,0.,1.);}",
        "fragment": "precision highp float;uniform vec4 color;void main(){gl_FragColor=color;}",
        "color": [
          1,
          1,
          1,
          1
        ],
        "controls": [
          "small",
          "zero",
          "negative-width",
          "negative-height",
          "restore"
        ]
      },
      "webgl2": {
        "api": "webgl2",
        "framebuffer": [
          8,
          8
        ],
        "ceiling": 32768,
        "maxCases": 16,
        "dimensions": [
          8192,
          16384,
          32767
        ],
        "axes": [
          "x",
          "y",
          "xy"
        ],
        "boundary": "reported limit and limit+1 within ceiling",
        "vertex": "attribute vec2 position;void main(){gl_Position=vec4(position,0.,1.);}",
        "fragment": "precision highp float;uniform vec4 color;void main(){gl_FragColor=color;}",
        "color": [
          1,
          1,
          1,
          1
        ],
        "controls": [
          "small",
          "zero",
          "negative-width",
          "negative-height",
          "restore"
        ]
      }
    },
    "controls": {}
  }
]

One collector runs per invocation. Results and JSON select this signal’s fields; any companions execute in the same collector.

Generated source manifest lists runtime files, fixture URLs and content digests for this build. The Source tab provides a copyable console sample.

Run and edit locally

From the repository root, start the Astro app, then open /signals/webgl.viewport-response. Edit the collector source and reload the page to load its new build.

pnpm run dev:web

In a browser module served by this repository’s Vite graph:

import { createCollector } from "/core/collect"
import { measurementModule } from "/core/signals/webgl/viewport-response"

const signal = measurementModule
const collector = createCollector()
const suite = { signals: [signal] }
const result = await collector.collect(suite)

Reuse the collector owner for repeated calls so collection can enforce cleanup. This returns the collector’s raw result; app/signals/projection.ts selects the retained fields shown on this page.

rg -n 'measurementModule' core app tests
pnpm run check
pnpm run test tests/unit/app/focused-projection.test.ts