I’m trying to make a raycaster in Python with PyOpenGL and i accomplished to make a little yellow square. Main thing is that i need keyboard input to move my square and i made something but it is not working. Here is the code: Why this code is not working? Answer Define px and py in global namespace: Use the
Tag: opengl
Unexpected behavior from glVertexAttribPointer data types using pyglet
I’ve been working on implementing a quadtree based LOD system. I’m using Pyglet as a python binding for OpenGL and I’m getting some weird behavior, I’d like to know if I’m doing something wrong. Setting up my buffers: (input data are leaves of a quadtree to be decoded in the vertex shader) Draw call: source for test_shader: And this doesn’t
PyOpenGL, pygame, and errors when drawing a shape
I’ve been writing a custom snake game using python, pygame, and pyopengl. I’m trying to draw a shape on the screen. However, I’ve stumbled upon this error: The console is throwing me a TypeError and an Attribute error. I’m not sure if this is due to my code or an issue with one of the libraries. I’m using Python 3.9.1,
PyOpenGL :: OpenGL.error.NullFunctionError: Attempt to call an undefined function glutInit, check for bool(glutInit) before calling
I’m following this very easy guide in order to make my first steps into PyOpenGL. I installed pip install PyOpenGL PyOpenGL_accelerate , all good. I tested the installation through the test code: import OpenGL.GL import OpenGL.GLUT import OpenGL.GLU print(“Imports successful!”) # If you see this printed to the console then installation was successful all good I now run this script:
How am I going wrong in glMultiDrawArraysIndirect function?
I’m programming using Python and Modern OpenGL, and I tried to implement the glMultiDrawArraysIndirect function in my code to draw a simple shape, I want to apply it later on to a more complex thing, but this is just a simple test that I don’t know exactly where the error is. In the VBO there is a square, but I
pyOpenGL 2D Image drawn skewed
I am trying to draw a 2d image in OpenGL using pillow to load the image, but when I render it in OpenGL, the image is skewed. This is the original image: Loading.png This is the code: Result As you can see, the result is a skewed image, I don’t know why this is happening, and I can’t see the
PyOpenGL – Minimal glDrawArrays Example
I’ve seen many minimal PyOpenGL examples, but none of the ones I’ve found make use of VAOs or glDrawArrays / glDrawElements. Instead they all use glVertex, glut shapes, and occasionally the old glCallList function. I’m now trying to write a minimal working example that uses vertex arrays and buffers for vertex data. If I understand PyOpenGL correctly, the following code
How to rotate slices of a Rubik’s Cube in python PyOpenGL?
I’m attempting to create a Rubik’s Cube in Python, i have gotten as far as visually representing the cube. Struggling a bit with how to implement rotation. I guess i’m asking for feedback as to how to go about doing this. I thought at first of, rotating each cubes set of vertices’s, without much luck. I basically want to select
how to create empty c type array (or just one NULL value) in python?
I was wondering whether (and how) one can create empty c type arrays in python. The following code works fine if I want to initialize an array with zeros: If data is a list of None values however, I get an error message: is there a way to initialize and array with NONEs or NULLs? EDIT 1: the reason why