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Link create_text_sprite's two-pass workaround to pyglet issue #1509 #2929

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Merged
pvcraven merged 1 commit into from
Oct 7, 2026
Merged

Link create_text_sprite's two-pass workaround to pyglet issue #1509 #2929

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8 changes: 5 additions & 3 deletions arcade/text.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1143,9 +1143,11 @@ def create_text_sprite(

# Drawing text over a transparent background would multiply the color
# by the text's alpha and square the alpha, since pyglet blends alpha
# like color, so the sprite would be drawn too faint. Instead, draw it
# over black and over white: over black each pixel is the color times
# the alpha, and over white it's lighter by (1 - alpha).
# like color (https://github.com/pyglet/pyglet/issues/1509), so the
# sprite would be drawn too faint. Instead, draw it over black and over
# white: over black each pixel is the color times the alpha, and over
# white it's lighter by (1 - alpha). Once pyglet blends alpha separately,
# one pass over transparent black would do, with the alpha divided out.
def draw_over(background: RGBA255) -> PIL.Image.Image:
with texture_atlas.render_into(texture) as fbo:
fbo.clear(color=background)
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