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Votes

0

Found in

6000.0.47f1

6000.1.0f1

6000.2.0a9

6000.3.0a1

6000.4.0a1

Issue ID

UUM-103312

Regression

No

TMP emojis are rendered incorrectly and appear excessively pixelated when the Font Size is reduced

-

How to reproduce:
1. Open the “unity-emoji-testbed-main“ project
2. Open the “Main” scene
3. Observe the smaller emoji near the “Small example text with emojis“ text in the Game view

Expected result: Emojis are displayed clearly and accurately
Actual result: Emojis appear pixelated and are difficult to read

Reproducible with: 6000.0.47f1, 6000.1.0f1, 6000.2.0a9
Could not test with: 2022.3.61f1 (numerous compilation errors and missing scripts)

Reproducible on: Windows 10
Not reproducible on: no other environment tested

Related slack thread: https://unity.slack.com/archives/C5AURAWV7/p1744807939650529?thread_ts=1743778877.541229&cid=C5AURAWV7

  1. Resolution Note:

    The described behavior is expected. The game view scale is set to a value other than 1x, which distorts the visuals and introduces artifacts. Bitmap or rasterized sprites, such as emojis, are best rendered at a 1:1 scale, particularly when using the "NotoColorEmoji" font file, which only supports a single size of 109 point. When scaling these glyphs, the quality degrades due to texture filtering, especially at larger sizes. Additionally, mipmapping would not improve the rendering quality since the font file lacks the necessary glyphs sampled at various sizes. Overall, bitmap data displays optimally at 1:1, and any deviation results in progressively worse visual quality.

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