def main():
glfw.setErrorCallback(error_callback)
glfw.init()
glfw.windowHint(glfw.CONTEXT_VERSION_MAJOR, 3)
glfw.windowHint(glfw.CONTEXT_VERSION_MINOR, 3)
glfw.windowHint(glfw.OPENGL_PROFILE, glfw.OPENGL_CORE_PROFILE)
# glfw.windowHint(glfw.RESIZABLE, gl.FALSE)
glfw.windowHint(glfw.OPENGL_FORWARD_COMPAT, 1)
window = glfw.createWindow(800, 600, "LearnOpenGL")
if window is None:
print('could not open window.')
glfw.terminate()
sys.exit()
window.makeContextCurrent()
window.setKeyCallback(key_callback)
gl.init()
err = gl.getError()
print(gl)
if err:
print("WINDOW OPEN ERROR:", err)
vertexShader = gl.createShader(gl.VERTEX_SHADER)
gl.shaderSource(vertexShader, [VERTEX_SHADER_SOURCE]);
gl.compileShader(vertexShader)
success = gl.getShaderiv(vertexShader, gl.COMPILE_STATUS)
print("VERTEX SHADER COMPILE STATUS:",success)
if not success:
infoLog = gl.getShaderInfoLog(vertexShader)
print("ERROR COMPILING SHADER:", infoLog)
sys.exit()
fragmentShader = gl.createShader(gl.FRAGMENT_SHADER)
gl.shaderSource(fragmentShader, [FRAGMENT_SHADER_SOURCE]);
gl.compileShader(fragmentShader)
success = gl.getShaderiv(fragmentShader, gl.COMPILE_STATUS)
print("FRAGMENT SHADER COMPILE STATUS:",success)
if not success:
infoLog = gl.getShaderInfoLog(fragmentShader)
print("ERROR COMPILING SHADER:", infoLog)
sys.exit()
shaderProgram = gl.createProgram()
gl.attachShader(shaderProgram, vertexShader)
gl.attachShader(shaderProgram, fragmentShader)
gl.linkProgram(shaderProgram)
gl.getProgramiv(shaderProgram, gl.LINK_STATUS)
print("SHADER PROGRAM LINK STATUS:",success)
if not success:
infoLog = gl.getProgramInfoLog(shaderProgram)
print("ERROR LINKING SHADER PROGRAM:", infoLog)
sys.exit()
assert(gl.isProgram(shaderProgram))
gl.useProgram(shaderProgram)
#gl.deleteShader(vertexShader)
#gl.deleteShader(fragmentShader)
vao = gl.genVertexArrays(1)[0]
vbo, ebo = gl.genBuffers(2)
print(vao, vbo, ebo)
# 1. Bind Vertex Array Object
gl.bindVertexArray(vao)
# 2. Copy our vertices array in a buffer for OpenGL to use
gl.bindBuffer(gl.ARRAY_BUFFER, vbo)
gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW)
# 2. Copy our index array in a buffer for OpenGL to use
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, ebo)
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW)
# 3. Then set our vertex attributes pointers
gl.vertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, 3 * sizeof(gl.GLfloat), None)
gl.enableVertexAttribArray(0)
# 4. unbind the vbo
gl.bindBuffer(gl.ARRAY_BUFFER, 0)
# 4. Unbind the VAO
gl.bindVertexArray(0)
while not window.shouldClose():
glfw.pollEvents()
framebuffer_width, framebuffer_height = window.getFramebufferSize()
gl.viewport(0, 0, framebuffer_width, framebuffer_height)
gl.clearColor(0.2, 0.3, 0.3, 1.0)
gl.clear(gl.COLOR_BUFFER_BIT)
gl.useProgram(shaderProgram)
gl.bindVertexArray(vao)
gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_INT, 0)
# gl.drawArrays(gl.TRIANGLES, 0, 3);
gl.bindVertexArray(0)
window.swapBuffers()
gl.deleteVertexArrays([vao])
gl.deleteBuffers([vbo, ebo])
def main():
glfw.setErrorCallback(error_callback)
glfw.init()
glfw.windowHint(glfw.CONTEXT_VERSION_MAJOR, 3)
glfw.windowHint(glfw.CONTEXT_VERSION_MINOR, 3)
glfw.windowHint(glfw.OPENGL_PROFILE, glfw.OPENGL_CORE_PROFILE)
# glfw.windowHint(glfw.RESIZABLE, gl.FALSE)
glfw.windowHint(glfw.OPENGL_FORWARD_COMPAT, 1)
window = glfw.createWindow(WIDTH, HEIGHT, "LearnOpenGL")
if window is None:
print('could not open window.')
glfw.terminate()
sys.exit()
inputMap = InputMap()
window.makeContextCurrent()
window.setKeyCallback(inputMap.key_callback)
window.setCursorPosCallback(inputMap.mouse_callback)
#window.setScrollCallback(inputMap.scroll_callback)
window.setInputMode(glfw.CURSOR, glfw.CURSOR_DISABLED)
gl.init()
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
camera = Camera(position=Vec3(0.0, 0.0, 3.0))
lastX = 400
lastY = 300
firstMouse = True
deltaTime = 0.0
lastFrame = 0.0
gl.enable(gl.DEPTH_TEST)
lampShaderProgram = Shader(LAMP_VERTEX_SHADER_SOURCE, LAMP_FRAGMENT_SHADER_SOURCE)
lightingShaderProgram = Shader(LIGHTING_VERTEX_SHADER_SOURCE, LIGHTING_FRAGMENT_SHADER_SOURCE)
lightingShaderProgram.use()
lightVAO, containerVAO = gl.genVertexArrays(2)
vbo = gl.genBuffers(1)[0]
# 1. Bind Vertex Array Object
gl.bindVertexArray(containerVAO)
# 2. Copy our vertices array in a buffer for OpenGL to use
gl.bindBuffer(gl.ARRAY_BUFFER, vbo)
gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW)
# Position attribute
gl.vertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.position.offset)
gl.enableVertexAttribArray(0)
# Normal attribute
gl.vertexAttribPointer(1, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.normal.offset)
gl.enableVertexAttribArray(1)
# 4. Unbind the VAO
gl.bindVertexArray(0)
# 1. Bind Vertex Array Object
gl.bindVertexArray(lightVAO)
# Position attribute
gl.vertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.position.offset)
gl.enableVertexAttribArray(0)
# 4. Unbind the VAO
gl.bindVertexArray(0)
# 4. unbind the vbo
gl.bindBuffer(gl.ARRAY_BUFFER, 0)
lightPos = Vec3(1.2, 1.0, 2.0)
while not window.shouldClose():
inputMap.begin_frame()
glfw.pollEvents()
input = inputMap.get_input()
camera.processInput(input, 1.0/30.0)
framebuffer_width, framebuffer_height = window.getFramebufferSize()
gl.viewport(0, 0, framebuffer_width, framebuffer_height)
gl.clearColor(0.2, 0.3, 0.3, 1.0)
gl.clear(gl.COLOR_BUFFER_BIT|gl.DEPTH_BUFFER_BIT)
lightingShaderProgram.use()
lightingShaderProgram.uniforms.objectColor = Vec3(1.0, 0.5, 0.31)
lightingShaderProgram.uniforms.lightColor = Vec3(1.0, 0.5, 1.0)
lightingShaderProgram.uniforms.lightPos = lightPos
lightingShaderProgram.uniforms.viewPos = camera.position
# create transformations
view = camera.getViewMatrix()
projection = Mat4.Perspective(45.0, float(WIDTH) / float(HEIGHT), 0.1, 100.0)
# assign the transformations
lightingShaderProgram.uniforms.view = view
lightingShaderProgram.uniforms.projection = projection
# draw the container
gl.bindVertexArray(containerVAO)
model = Mat4.Identity()
lightingShaderProgram.uniforms.model = model
gl.drawArrays(gl.TRIANGLES, 0, 36)
gl.bindVertexArray(0)
# draw the lamp
lampShaderProgram.use()
lampShaderProgram.uniforms.view = view
lampShaderProgram.uniforms.projection = projection
model = Mat4.Translation(lightPos) * Mat4.Scale(0.2)
lampShaderProgram.uniforms.model = model
gl.bindVertexArray(lightVAO)
gl.drawArrays(gl.TRIANGLES, 0, 36)
gl.bindVertexArray(0)
window.swapBuffers()
lampShaderProgram.delete()
lightingShaderProgram.delete()
gl.deleteVertexArrays([containerVAO, lightVAO])
gl.deleteBuffers([vbo])