Image texture looks pixelated (like a low-res) on output in the UV Map node when using the Compositor editor even source is high-res.
Distortion of image is from UV render pass. Did I miss something in setup?

Image texture looks pixelated (like a low-res) on output in the UV Map node when using the Compositor editor even source is high-res.
Distortion of image is from UV render pass. Did I miss something in setup?

As pointed by @gandalf3 in a comment ... the UV pass has to be saved as full floating point EXR file format to have enough color range to translate texture without pixelation.