Hello,
I am working on a project using the Raspberry Pico W and a 240x135 screen. I'm reaching the limit of RAM memory.
So I'm trying to reduce the use of RAM especially on images. I replace the method "adafruit_imageload.load(...)" by the method "displayio.OnDiskBitmap(...)".
This works very well. The only problem is that I don't know how to add a transparent color with this method.
I used to use "make_transparent(...)" on the palette, but now I don't know how to do it.
Do you have an example combining "displayio.OnDiskBitmap(...)" and "make_transparent(...)"?
Thanks for your help
Mike
OnDiskBitmap and Transparency
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- AmazingCircuitPythonFR35
- Posts: 99
- Joined: Thu Feb 05, 2015 10:18 am
- mikeysklar
- Posts: 13824
- Joined: Mon Aug 01, 2016 8:10 pm
Re: OnDiskBitmap and Transparency
I do see palette.make_transparent(0) being used in the Creating Your First TileMap Game guide.
Code: Select all
# make green be transparent so entities can be drawn on top of map tiles
palette.make_transparent(0)
# Create the BANNED TileGrid
BANNED = displayio.TileGrid(
sprite_sheet,
pixel_shader=palette,
width=10,
height=8,
tile_width=16,
tile_height=16,
)
- AmazingCircuitPythonFR35
- Posts: 99
- Joined: Thu Feb 05, 2015 10:18 am
Re: OnDiskBitmap and Transparency
Hi,mikeysklar wrote: ↑Mon Jan 30, 2023 1:50 pm I do see palette.make_transparent(0) being used in the Creating Your First TileMap Game guide.
Code: Select all
# make green be transparent so entities can be drawn on top of map tiles palette.make_transparent(0) # Create the BANNED TileGrid BANNED = displayio.TileGrid( sprite_sheet, pixel_shader=palette, width=10, height=8, tile_width=16, tile_height=16, )
Thanks for your answer.
But In this example, the 'make.transparent()' method is associated with the method 'adafruit_imageload.load()'.
I would like to use it with the method 'displayio.OnDiskBitmap()' and I don't see how.
Best regards,
Mike
Please be positive and constructive with your questions and comments.