Color attachmenttextureIndex 0
Beauty output is read as an unsigned-byte RGBA buffer.
- Bytes
- —
- Last pixel
- —
- Reads
- 0
THREE.JS / FOUNDATIONS 86
Read the target back.
One layered render target writes color and normals with an array depth attachment. A selected layer then crosses the GPU/CPU boundary through the official async readback API.
Initializing
—
Creating two color attachments and layered depth.
- Backend
- —
- MRT
- —
- Target
- —
- Draw calls
- —
Normal attachmenttextureIndex 1
World normals travel through the second MRT attachment.
- Bytes
- —
- Last pixel
- —
- Reads
- 0
Depth attachmentuseArrayDepthTexture
Per-layer depth testing stays separate from the color MRT.
- Class
- —
- Shape
- —
- Layers
- —
Readback controls
GPU → CPU lifecycle
MRT→array layer→readRenderTargetPixelsAsync→DataTexture
The first completed frame will populate the selected CPU preview.
Readback study issue.
Drag to orbit · choose an attachment/layer · read back a complete 64 × 64 slice
Previous: texture targets →LAB 86 / READBACK + DEPTH