- Pygame image convert alpha how to#
- Pygame image convert alpha 32 bit#
- Pygame image convert alpha software#
- Pygame image convert alpha code#
Parameters: original: tile surface to inspect colorkey: optional colorkey for the tileset image pixelalpha: if true, prefer per-pixel alpha surfaces Returns: new tile surface """ # tiled set a colorkey if colorkey : tile = original. Surface : """ Return new pygame Surface with optimal pixel/data format This method does several interactive_tests on a surface to determine the optimal flags and pixel format for each tile surface. Surface, colorkey : Optional, pixelalpha : bool, ) -> pygame. flipped_vertically ) return tile def smart_convert ( original : pygame. flipped_vertically : tile = flip ( tile, flags. flipped_diagonally : tile = flip ( rotate ( tile, 270 ), True, False ) if flags. Surface : """ Transform tile according to the flags and return a new one Parameters: tile: tile surface to transform flags: TileFlags object Returns: new tile surface """ if flags. error ( "cannot import pygame (is it installed?)" ) raise _all_ = def handle_transformation ( tile : pygame. getLogger ( _name_ ) try : from ansform import flip, rotate import pygame except ImportError : logger. """ import itertools import logging from typing import Optional, Union, List import pytmx from pytmx.pytmx import ColorLike, PointLike logger = logging. You should have received a copy of the GNU Lesser General Public License along with pytmx. See the GNU Lesser General Public License for more details. pytmx is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Pygame image convert alpha software#
pytmx is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Surface = pygame.Surface(image.# -*- coding: utf-8 -*- """ Copyright (C) 2012-2017, Leif Theden This file is part of pytmx. In code, it translates roughly to: import pygame Then, just blit your original image on this intermediary surface, set the global alpha on it (set_alpha) and blitit to your destination surface That colro will render fully transparent when blitting. So, fill your surface with this key color, and set it as the key color for the surface: You won't be able to know witch value won't be in use. In video effects, normaly they use pure green or pure white for that, but youĬan choose any RGB value - if your image is a photo instead of pixel art, You have to: create another surface, with the same size of your image, with depth = 24įill that surface with a color not in use in your image (like "chroma key"). However, if your "alpha.png" does use transparency itself, and you intend to preserve it, gets trickier! That is easy to achieve if your original image (inyour case the "alpha.png" file) uses no transparency itself - just a matter of: import pygame
Pygame image convert alpha 32 bit#
32 bit depth), a "global alpha" value,as set by the surface's set_alpha method will be ignored.įor this "global" alpha to be used, your source surface must not have per pixel alpha.
What happens is that if the surface you are blitting (the source) has alpha pixels values for the pixels itself (i.e. It is all documented at - but indeed, short in words or examples.
"global alpha" for a surface is tricky to get done right in Pygame.
Pygame image convert alpha code#
Your code is a bit convoluted :-) but nonetheless, "non-per-pixel" - or Window.blit(background, background.get_rect()) To elaborate on how I'm struggling with this, the blurb below is a slightly modified hunk of code from this SO answer, but if you run it, you'll see that "image" loses it's native alpha, while the alpha of "image2" never changes! Yuck.
Pygame image convert alpha how to#
I want to display an image with alpha with a specified transparency, but can't figure out how to do it.