Pygame image convert alpha how to#
Pygame image convert alpha code#

Pygame image convert alpha code#

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#

Self.image = _alpha() # faster blitting with transparent color #self.image=('xx.I want to display an image with alpha with a specified transparency, but can't figure out how to do it. # to avoid the black background, make black the transparent color: # self.surface = () # for faster blitting if no transparency is used. The Surface class allows manipulation (drawing lines, setting pixels, capturing. Note that there is no Image class an image is loaded as a Surface object. (self.image, ( 0, 0, 200), (radius // 2, radius // 2), radius// 3) The image module contains functions for loading and saving pictures, as well as transferring Surfaces to formats usable by other packages. (self.image, color, (radius, radius), radius) # draw blue filled circle on ball surface # left blue eye # create a rectangular surface for the ball 50x50 self.image = pygame.Surface((self.width,self.height)) # (Surface, color, pos, radius, width=0) # from pygame documentation Self.dy = random.random() * 100 - 50 else: If color is None: # create random color if no color is givenĬolor = (random.randint( 0, 255), random.randint( 0, 255), random.randint( 0, 255)) At minimum it will support uncompressed BMP. pygame may not always be built to support all image formats. import pygame def drawarrow( surface: pygame.Surface, start: pygame.Vector2, end: pygame.Vector2, color: pygame.Color, bodywidth: int 2, headwidth: int 4, headheight: int 2, ): '''Draw an arrow between start and end with the arrow head at the end. png images, use the convertalpha() method after loading so that the image has per pixel transparency. This gives you the most freedom and flexibility but is also the slowest method. initialize a display (Surface object) only necessary if alpha channel exists. I recently needed to draw an arrow for one of my projects and thought the function could be helpful for other people. Makes every pixel in the Surface transparent by a individual alpha value. If you split your image (one background semi transparent haze type, the other the fully opaque foreground) then you can blit both and get a cool subtle effect. mousecursor (playerimage).convertalpha() while True. L = gui.Label(w * 0.8571428571428571 - w_w // 2, 10, w_w, w_h, 'Tree-GUI').setBackground(( 0, 0, 0, 0)).setForeground(( 50, 50, 50)).setBorder(brd.Border( 0, 0)) But if you want to do a semi transparent image (overall) you can do a blit command that includes alpha (I forget the exact command). For surfaces that dont contain transparency, you need to use regular convert. ''' return not newtext or (newtext.isdigit() and int(newtext) < 101) Using convertalpha tells it to use the actual alpha values of the original image. Return values: boolean is the operation valid reportlab drawimage issues with png transparency background. Might have to run it through nvertalpha before its. Validation function for an Entry limits inputs to numbers smaller than 101 how to set background color of an image to transparent in pygame.