feat: added opengl main py and requirements

This commit is contained in:
Krzysztof Rudnicki 2024-11-28 19:11:45 +01:00
parent 80b280885a
commit 9cb1c3ea22
3 changed files with 253 additions and 0 deletions

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from OpenGL.GL import *
from OpenGL.GLUT import *
from OpenGL.GL.shaders import compileProgram, compileShader
import numpy as np
# Vertex shader
VERTEX_SHADER = """
#version 330
in vec3 position;
in vec3 color;
out vec3 vertexColor;
void main() {
gl_Position = vec4(position, 1.0);
vertexColor = color;
}
"""
# Fragment shader
FRAGMENT_SHADER = """
#version 330
in vec3 vertexColor;
out vec4 fragColor;
void main() {
fragColor = vec4(vertexColor, 1.0);
}
"""
# Define vertices and colors
vertices = np.array([
# Positions # Colors
0.0, 0.5, 0.0, 1.0, 0.0, 0.0, # Top (red)
-0.5, -0.5, 0.0, 0.0, 1.0, 0.0, # Bottom-left (green)
0.5, -0.5, 0.0, 0.0, 0.0, 1.0 # Bottom-right (blue)
], dtype=np.float32)
# Initialize OpenGL
def init():
global shader, VAO
# Compile shaders
shader = compileProgram(
compileShader(VERTEX_SHADER, GL_VERTEX_SHADER),
compileShader(FRAGMENT_SHADER, GL_FRAGMENT_SHADER)
)
# Generate VAO and VBO
VAO = glGenVertexArrays(1)
VBO = glGenBuffers(1)
glBindVertexArray(VAO)
glBindBuffer(GL_ARRAY_BUFFER, VBO)
glBufferData(GL_ARRAY_BUFFER, vertices.nbytes, vertices, GL_STATIC_DRAW)
# Position attribute
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * vertices.itemsize, None)
glEnableVertexAttribArray(0)
# Color attribute
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * vertices.itemsize, ctypes.c_void_p(3 * vertices.itemsize))
glEnableVertexAttribArray(1)
glBindBuffer(GL_ARRAY_BUFFER, 0)
glBindVertexArray(0)
# Render function
def display():
glClear(GL_COLOR_BUFFER_BIT)
glUseProgram(shader)
glBindVertexArray(VAO)
glDrawArrays(GL_TRIANGLES, 0, 3)
glBindVertexArray(0)
glUseProgram(0)
glutSwapBuffers()
# Main function
def main():
glutInit()
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB)
glutCreateWindow(b"PyOpenGL Triangle")
glutInitWindowSize(800, 600)
glutDisplayFunc(display)
init()
glutMainLoop()
if __name__ == "__main__":
main()

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code/requirements.txt Normal file
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glfw
numpy
pyrr
PyOpenGL