if not window:
glfw.terminate()
glfw.set_window_should_close(window, True)
glfw.make_context_current(window)
# Connecting the callback function 'on_key' to handle keyboard events
glfw.set_key_callback(window, on_key)
# Binding artificial vertex array object for validation
VAO = glGenVertexArrays(1)
glBindVertexArray(VAO)
# Creating shader programs
mvpPipeline = es.SimpleModelViewProjectionShaderProgram()
texture2dPipeline = es.SimpleTextureTransformShaderProgram()
# Setting up the clear screen color
glClearColor(0.25, 0.25, 0.25, 1.0)
# As we work in 3D, we need to check which part is in front,
# and which one is at the back
glEnable(GL_DEPTH_TEST)
# Enabling transparencies
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
# Creating shapes on GPU memory
cpuAxis = bs.createAxis(7)
# now actually attach it
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT,
GL_RENDERBUFFER, rbo)
# now that we actually created the framebuffer and added all attachments we want to check if it is actually complete now
if glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE:
print("ERROR::FRAMEBUFFER:: Framebuffer is not complete!")
# Binding again the default shape buffer
glBindFramebuffer(GL_FRAMEBUFFER, 0)
# Creating shader programs for textures and for colors
#######################
textureShaderProgram = es.SimpleTextureTransformShaderProgram()
colorShaderProgram = es.SimpleModelViewProjectionShaderProgram()
# Creating shapes on GPU memory
#######################
rainbowCube = bs.createRainbowCube()
gpuRainbowCube = es.GPUShape().initBuffers()
colorShaderProgram.setupVAO(gpuRainbowCube)
gpuRainbowCube.fillBuffers(rainbowCube.vertices, rainbowCube.indices,
GL_STATIC_DRAW)
shapeQuad = bs.createTextureQuad(1, 1)
gpuQuad = es.GPUShape().initBuffers()
textureShaderProgram.setupVAO(gpuQuad)
gpuQuad.fillBuffers(shapeQuad.vertices, shapeQuad.indices, GL_STATIC_DRAW)
gpuQuad.texture = textureColorbuffer # <--- Here is where the magic happens!
