THREE.JS / FOUNDATIONS

Read the pixels.

A shader writes known linear-sRGB values into a float WebGLRenderTarget. The same target is displayed through a screen pass while readRenderTargetPixels exposes one RGBA sample.

Initializing

Creating the float render target and screen pass.

Backend: -
Target: -
Pixel: -
RGBA float: -
Sample: -

Float readback boundary Target size Read X Read Y Animate blue channel

sceneRTT → WebGLRenderTarget(FloatType) → readRenderTargetPixels → sceneScreen

This lab proves the selected float readback contract only. The official torus scene, mouse-driven coordinates, Stats presentation, extension matrix, native device performance, and whole-example fidelity remain separate.