Questions tagged [blit]
BLock Image Transfer - Involves copying one bitmap onto another using a raster operator.
blit
293
questions
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45
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Contour is not restored when blitting imshow Plot
Here is a MWE:
import numpy as np
import matplotlib.pyplot as plt
def hamilton(x, p):
return p**2 + x**4 - x**2 + x/7
def get_random_matrix(x, y):
return np.random.uniform(size=x*y).reshape((...
- 101
-1
votes
1
answer
44
views
Can't get one SDL_Surface to blit on top of another
I am trying to get a colored box to blit on top of a black surface that I'm using as my window background. But when I compile and run this program all I get is the black window screen:
#include <...
- 1
0
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0
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22
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blit minimal example fails to keep plot visible
I am trying to get the Python maplotlib, Faster rendering by using blotting - Minimal example to work correctly.
Faster rendering by using blitting
The code from that example is below.
The sample code ...
- 101
1
vote
1
answer
40
views
Is there a way to blit a semi-transparent image to a screen only while collision is occurring?
I have this code for an enemy character that has a hitbox of 20, 20 saved to the Rect obj pursrect.
I also have code detailing a 200 pixel box that constantly follows the player around directly on top ...
- 47
0
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0
answers
61
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QT Mplwidget, plot with blitting
I'm a python beginner, and I'm developing my first GUI using QtDesigner to draw serial port reads to HF data.
I have added four widgets to it. I'm using matplotlib.animation class, but I found that if ...
- 1
0
votes
1
answer
883
views
Graphics.Blit to copy material to texture gives incorrect results
I have a material using a shader I wrote. I am using HDRP. This shader samples a texture, does some manipulation to the texture, and outputs the result.
I want to save the the result of this ...
0
votes
1
answer
129
views
PyGame "blit" not working, but there is no error message
For some reason, the PyGame blit command is not working for me. Whenever I run my code, nothing appears on screen, but there is no error message in the console.
import pygame
pygame.init()
screen = ...
0
votes
2
answers
112
views
Image not rendering .bmp image C++ SDL
I am learning SDL, and I am trying to render a .bmp image, but it just displays a black screen. Here is the code:
#include <SDL.h>
#include "engine.cpp"
#include <iostream>
...
- 95
1
vote
1
answer
459
views
Live plotting nicely with blit or Animation from matplotlib
Trying to be short and fast . I have a scatter plot I want to do in a for loop in live.
So I have this :
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.animation import ...
- 240
1
vote
1
answer
69
views
How to save an image after changing its resolution in Pygame?
Currently, I am a beginner when it comes to Pygame, and have been trying to allow the user to hand-draw digits into a canvas. I have managed to get the code to draw and clear the canvas to work. ...
0
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0
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50
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Dummy camera clears the depth buffer
I have a camera set up to blit a texture to the screen. The camera is set to Don't Clear and has nothing in the Culling Mask.
The blit is done with a basic unlit shader with ZWrite Off and ZTest ...
- 701
1
vote
0
answers
273
views
Flickering windows for Matplotlib animation
I'm trying to create a simulator in Python with Matplotlib as the GUI. I'd like to have a number of different figures, all individually animated - i.e. one showing the main simulation window, another ...
- 462
0
votes
1
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263
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How to matplotlib blit artist outside axes?
https://matplotlib.org/stable/gallery/event_handling/cursor_demo.html
Im trying to make a cross hair cursor with a annotation on the right axis to show the Y-value
everything works fine except when ...
- 1
0
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1
answer
12
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How to clear screan.blit()
I am doing notification window and I want to do when massage pop up is shows for some time and then it clears it self.
I know how to do that it waits with time.sleep() but I dont know how to clear ...
- 75
1
vote
2
answers
273
views
blit opencv camera capture with pygame throws TypeError: argument 1 must be pygame.Surface, not cv2.VideoCapture
I'm new to pygame and never used it before and wanted to know how I can blit or display my webcam into the surface by using pygame and opencv but I keep getting the message:
Traceback (most recent ...
- 43