예제 #1
0
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])
예제 #2
0
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])