SET_WRITE_ALPHA_BLENDER(3alleg4)

✨ NAME ✨

set_write_alpha_blender — bestie, this is the one that turns on the special alpha-channel editing mode 💅 and it lives in the Allegro game programming library 🎀

🌸 SYNOPSIS 🌸

#include <allegro.h>

void set_write_alpha_blender();

💖 DESCRIPTION 💖

Okay so listen. set_write_alpha_blender() switches on the special alpha-channel editing mode — the fancy secret door 🚪✨ — and what that mode is for is drawing alpha channels right on top of an existing 32-bit RGB sprite, so you can glow it up and turn it into an RGBA format image. It's giving makeover montage. 🦋

Once you've called this function, here's the recipe, no cap:

1. Set your drawing mode to DRAW_MODE_TRANS 🎨
2. Then write draw color values in the range 0-255 onto a 32-bit image

And the magic part? The color values stay exactly where they are — untouched, unbothered, thriving — but the alpha gets altered to whatever values you're writing. So you're literally editing the transparency layer and leaving the pixels alone. Iconic. 👑

Bonus: after you've enabled this mode, you can also use draw_trans_sprite() to superimpose an 8-bit alpha mask over the top of an existing 32-bit sprite. Two-for-one deal, we love to see it. 🫶

🔥 SEE ALSO 🔥

• set_alpha_blender(3alleg4)
• draw_trans_sprite(3alleg4)
• drawing_mode(3alleg4)
• exalpha(3alleg4)
• extrans(3alleg4)

K that's the whole page, bestie 💜 this is Allegro, version 4.4.3, and yeah — go forth and edit those alpha channels, you absolute legend 🌈✨💅