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()
gl.clearColor(0.2, 0.3, 0.3, 1.0)
while not window.shouldClose():
framebuffer_width, framebuffer_height = window.getFramebufferSize()
gl.viewport(0, 0, framebuffer_width, framebuffer_height)
gl.clear(gl.COLOR_BUFFER_BIT)
glfw.pollEvents()
window.swapBuffers()
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)
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)
lastFrame = time.perf_counter()
while not window.shouldClose():
inputMap.begin_frame()
glfw.pollEvents()
currentFrame = time.perf_counter()
deltaTime = currentFrame - lastFrame
lastFrame = currentFrame
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.light.position = lightPos
lightingShaderProgram.uniforms.viewPos = camera.position
lightColor = Vec3(math.sin(currentFrame) * 2.0, math.sin(currentFrame) * 0.7, math.sin(currentFrame) * 1.3)
diffuseColor = lightColor * 0.3
ambientColor = diffuseColor * 0.2
lightingShaderProgram.uniforms.light.ambient = ambientColor
lightingShaderProgram.uniforms.light.diffuse = diffuseColor
lightingShaderProgram.uniforms.light.specular = Vec3(1.0, 1.0, 1.0)
lightingShaderProgram.uniforms.material.ambient = Vec3(1.0, 0.5, 0.31)
lightingShaderProgram.uniforms.material.diffuse = Vec3(1.0, 0.5, 0.31)
lightingShaderProgram.uniforms.material.specular = Vec3(0.5, 0.5, 0.5) # Specular doesn't have full effect on this object's material
lightingShaderProgram.uniforms.material.shininess = 32.0
# 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])
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()
window.makeContextCurrent()
window.setKeyCallback(key_callback)
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
gl.enable(gl.DEPTH_TEST)
shaderProgram = Shader(VERTEX_SHADER_SOURCE, FRAGMENT_SHADER_SOURCE)
shaderProgram.use()
vao = gl.genVertexArrays(1)[0]
vbo, ebo = gl.genBuffers(2)
# 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)
# Position attribute
gl.vertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.position.offset)
gl.enableVertexAttribArray(0)
# Color attribute
# gl.vertexAttribPointer(1, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.color.offset)
# gl.enableVertexAttribArray(1)
# TexCoord attribute
gl.vertexAttribPointer(2, 2, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.texcoord.offset)
gl.enableVertexAttribArray(2)
# 4. unbind the vbo
gl.bindBuffer(gl.ARRAY_BUFFER, 0)
# 4. Unbind the VAO
gl.bindVertexArray(0)
# create the texture object, load the texture
# Load and create a texture
texture1, texture2 = gl.genTextures(2)
# Texture 1
load_texture(texture1, 'learningopengl/resources/textures/container.jpg')
# Texture 2
load_texture(texture2, 'learningopengl/resources/textures/awesomeface.png')
sb = True
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.DEPTH_BUFFER_BIT)
shaderProgram.use()
shaderProgram.uniforms.ourTexture1 = texture1
shaderProgram.uniforms.ourTexture2 = texture2
# create transformations
view = Mat4.Translation(Vec3(0.0, 0.0, -3.0))
projection = Mat4.Perspective(45.0, float(WIDTH) / float(HEIGHT), 0.1, 100.0)
# assign the transformations
shaderProgram.uniforms.view = view
shaderProgram.uniforms.projection = projection
gl.bindVertexArray(vao)
for i, position in enumerate(cubePositions):
# Calculate the model matrix for each object and pass it to shader before drawing
model = Mat4.Translation(position)
angle = 20.0 * i;
model = model * Mat4.Rotation(angle, Vec3(1.0, 0.3, 0.5))
shaderProgram.uniforms.model = model
gl.drawArrays(gl.TRIANGLES, 0, 36)
gl.bindVertexArray(0)
window.swapBuffers()
shaderProgram.delete()
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()
cursor = Vec2()
window_size = Vec2(WIDTH, HEIGHT)
ui = EventEmitter()
def mouse_move_callback(window, x, y):
nonlocal cursor
# print('mouse move:', window, x, y)
cursor = Vec2(x, window_size.y - y)
ui.emit('mouse_move', window, cursor)
def mouse_button_callback(window, button, action, mods):
print('mouse button:', window, button, action, mods)
ui.emit('mouse_button', window, button, action, mods)
def window_size_callback(window, width, height):
nonlocal window_size
window_size.x = width
window_size.y = height
window.makeContextCurrent()
# window.setInputMode(glfw.CURSOR, glfw.CURSOR_DISABLED)
window.setKeyCallback(key_callback)
window.setMouseButtonCallback(mouse_button_callback)
window.setCursorPosCallback(mouse_move_callback)
window.setWindowSizeCallback(window_size_callback)
gl.init()
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
# pre game-loop initialization
scene = Scene()
# construct the triangle
triangle_points = Vector(Vec3)
triangle_points.append(Vec3(-0.5, -0.5, 0.0))
triangle_points.append(Vec3( 0.5, -0.5, 0.0))
triangle_points.append(Vec3(-0.5, 0.5, 0.0))
triangle_indices = Vector(c_ubyte)
triangle_indices.append(0)
triangle_indices.append(1)
triangle_indices.append(2)
triangle_attribs = BufferAttribs(sizeof(Vec3))
triangle_attribs.add(BufferAttribs.POSITION_INDEX, 3, gl.FLOAT, gl.FALSE, 0)
triangle_shader = ShaderProgram(VERTEX_SHADER_SOURCE, FRAGMENT_SHADER_SOURCE)
triangle_draw_call = DrawCall(gl.UNSIGNED_BYTE, gl.LINE_LOOP, 0, len(triangle_indices))
triangle_material = {}
triangle_mesh = Mesh(triangle_shader, triangle_draw_call, triangle_material)
triangle_model = Model(triangle_indices.get_data(), triangle_points.get_data(), triangle_attribs, [triangle_mesh], InstanceData, ItemInstance)
triangle_instance = scene.add(triangle_model, InstanceData(model_matrix=Mat4.Identity(), base_color=Vec3(1.0, 0.0, 0.0)))
# construct the reticle
RETICLE_SIZE = 0.01
reticle_points = Vector(Vec3)
reticle_points.append(Vec3(-RETICLE_SIZE * 0.5, -RETICLE_SIZE * 0.5, 0.0))
reticle_points.append(Vec3(-RETICLE_SIZE * 0.5, RETICLE_SIZE * 0.5, 0.0))
reticle_points.append(Vec3( RETICLE_SIZE * 0.5, RETICLE_SIZE * 0.5, 0.0))
reticle_points.append(Vec3( RETICLE_SIZE * 0.5, -RETICLE_SIZE * 0.5, 0.0))
reticle_indices = Vector(c_ubyte)
reticle_indices.append(0)
reticle_indices.append(1)
reticle_indices.append(2)
reticle_indices.append(3)
reticle_attribs = BufferAttribs(sizeof(Vec3))
reticle_attribs.add(BufferAttribs.POSITION_INDEX, 3, gl.FLOAT, gl.FALSE, 0)
reticle_shader = triangle_shader
reticle_draw_call = DrawCall(gl.UNSIGNED_BYTE, gl.LINE_LOOP, 0, len(reticle_indices))
reticle_material = {}
reticle_mesh = Mesh(reticle_shader, reticle_draw_call, reticle_material)
reticle_model = Model(reticle_indices.get_data(), reticle_points.get_data(), reticle_attribs, [reticle_mesh], InstanceData, ItemInstance)
# construct the AABB model
aabb = AABB3()
aabb.include_point(Vec3(0.0, 0.0, 0.0))
aabb.include_point(Vec3(0.2, 0.2, 0.2))
aabb_points = Vector(Vec3)
aabb_points.append(Vec3(aabb.min.x, aabb.min.y, aabb.min.z))
aabb_points.append(Vec3(aabb.max.x, aabb.min.y, aabb.min.z))
aabb_points.append(Vec3(aabb.min.x, aabb.max.y, aabb.min.z))
aabb_points.append(Vec3(aabb.max.x, aabb.max.y, aabb.min.z))
aabb_points.append(Vec3(aabb.min.x, aabb.min.y, aabb.max.z))
aabb_points.append(Vec3(aabb.max.x, aabb.min.y, aabb.max.z))
aabb_points.append(Vec3(aabb.min.x, aabb.max.y, aabb.max.z))
aabb_points.append(Vec3(aabb.max.x, aabb.max.y, aabb.max.z))
# lines
aabb_indices = Vector(c_ubyte)
aabb_indices.append(0)
aabb_indices.append(1)
aabb_indices.append(2)
aabb_indices.append(3)
aabb_indices.append(4)
aabb_indices.append(5)
aabb_indices.append(6)
aabb_indices.append(7)
aabb_indices.append(0)
aabb_indices.append(4)
aabb_indices.append(1)
aabb_indices.append(5)
aabb_indices.append(2)
aabb_indices.append(6)
aabb_indices.append(3)
aabb_indices.append(7)
aabb_indices.append(0)
aabb_indices.append(2)
aabb_indices.append(1)
aabb_indices.append(3)
aabb_indices.append(4)
aabb_indices.append(6)
aabb_indices.append(5)
aabb_indices.append(7)
aabb_attribs = BufferAttribs(sizeof(Vec3))
aabb_attribs.add(BufferAttribs.POSITION_INDEX, 3, gl.FLOAT, gl.FALSE, 0)
aabb_shader = triangle_shader
aabb_draw_call = DrawCall(gl.UNSIGNED_BYTE, gl.LINES, 0, len(aabb_indices))
aabb_material = {}
aabb_mesh = Mesh(aabb_shader, aabb_draw_call, aabb_material)
aabb_model = Model(aabb_indices.get_data(), aabb_points.get_data(), aabb_attribs, [aabb_mesh], InstanceData, ItemInstance)
# reticle_instances = ModelInstances(reticle_model, InstanceData, ItemInstance)
reticle_instance = scene.add(reticle_model, InstanceData(model_matrix=Mat4.Identity()))
# aabb_instances = ModelInstances(aabb_model, InstanceData, ItemInstance)
aabb_instance = scene.add(aabb_model, InstanceData(model_matrix=Mat4.Identity()))
#reticle_instance.set_enabled(False)
ray_scene = RayScene()
# ui.on('mouse_move' lambda window, cursor: scene.mouse_move(camera, viewport, cursor))
camera = Camera(scene=scene)
framebuffer_width, framebuffer_height = window.getFramebufferSize()
# camera.projection_matrix = Mat4.Identity()
camera.projection_matrix = Mat4.Perspective(45.0, framebuffer_width/framebuffer_height, 0.1, 100.0)
camera.view_matrix = Mat4.Identity()
t0 = time.perf_counter()
frames = 0
while not window.shouldClose():
glfw.pollEvents()
gl.enable(gl.DEPTH_TEST)
gl.depthFunc(gl.LEQUAL)
gl.enable(gl.CULL_FACE)
gl.cullFace(gl.BACK)
t = time.perf_counter()
err = gl.getError()
if err:
print("ERROR:", err)
# render the frame
framebuffer_width, framebuffer_height = window.getFramebufferSize()
# camera.view_matrix = Mat4.LookAt(Vec3(math.cos(time.clock() * 0.1), 1.0, math.sin(time.clock() * 0.1)) *15.0, Vec3(0.0, 0.0, 0.0), Vec3(0.0, 1.0, 0.0))
camera.view_matrix = Mat4.LookAt(
Vec3(math.cos(time.clock() * 0.1), 1.0, math.sin(time.clock() * 0.1)) *2.0,
Vec3(0.0, 0.0, 0.0),
Vec3(0.0, 1.0, 0.0)
)
viewport = (0, 0, framebuffer_width, framebuffer_height)
camera.render_to_viewport(viewport)
# not sure if this is correct when the viewport size doesn't match the framebuffer size.
ray_origin, ray_direction = camera.get_ray(cursor, viewport)
# print(ray)
result = raytri.intersect_triangle(ray_origin, ray_direction, *triangle_points)
if result:
t, u, v = result
hit_pos = triangle_points[0] * (1.0 - u - v) + triangle_points[1] * u + triangle_points[2] * v
reticle_instance.set_enabled(True)
reticle_instance.model_matrix = Mat4.Translation(hit_pos)
reticle_instance.base_color = Vec3(1.0, 1.0, 1.0)
triangle_instance.base_color = Vec3(1.0, 0.0, 0.0)
else:
reticle_instance.set_enabled(False)
triangle_instance.base_color = Vec3(1.0, 1.0, 1.0)
reticle_instance.base_color = Vec3(0.0, 0.0, 0.0)
result = raytri.hit_aabb(ray_origin, ray_direction, aabb)
if result:
aabb_instance.base_color = Vec3(1.0, 0.0, 0.0)
else:
aabb_instance.base_color = Vec3(1.0, 1.0, 1.0)
# print((ray_origin, ray_direction), result)
# update buffers
scene.update_instances()
window.swapBuffers()
frames += 1
if not frames % 100:
print("FRAME RATE:", float(frames)/(time.perf_counter() - t0))
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)
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
camera = Camera(Vec3(0.0, 0.0, 3.0))
lastX = 400
lastY = 300
firstMouse = True
deltaTime = 0.0
lastFrame = 0.0
gl.enable(gl.DEPTH_TEST)
shaderProgram = Shader(VERTEX_SHADER_SOURCE, FRAGMENT_SHADER_SOURCE)
shaderProgram.use()
obj_model = generate_model(load_obj_file(io.StringIO(CUBE_OBJ), ""))
vao, vbo, ebo = load_model_data(obj_model)
# create the texture object, load the texture
# Load and create a texture
texture1, texture2 = gl.genTextures(2)
# Texture 1
load_texture(texture1, 'learningopengl/resources/textures/container.jpg')
# Texture 2
load_texture(texture2, 'learningopengl/resources/textures/awesomeface.png')
while not window.shouldClose():
inputMap.begin_frame()
glfw.pollEvents()
input = inputMap.get_input()
camera.processInput(input, 1.0/30.0)
# TODO: see http://www.glfw.org/docs/latest/window.html#window_fbsize
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)
shaderProgram.use()
shaderProgram.uniforms.ourTexture1 = texture1
shaderProgram.uniforms.ourTexture2 = texture2
# create transformations
# view = Mat4.Translation(Vec3(0.0, 0.0, -3.0))
view = camera.getViewMatrix()
projection = Mat4.Perspective(45.0, float(WIDTH) / float(HEIGHT), 0.1, 100.0)
# assign the transformations
shaderProgram.uniforms.view = view
shaderProgram.uniforms.projection = projection
gl.bindVertexArray(vao)
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, ebo)
for i, position in enumerate(cubePositions):
# Calculate the model matrix for each object and pass it to shader before drawing
model = Mat4.Translation(position)
angle = 20.0 * i;
model = model * Mat4.Rotation(angle, Vec3(1.0, 0.3, 0.5))
shaderProgram.uniforms.model = model
dc = obj_model['meshes'][0]['draw_call']
gl.drawElements(gl.TRIANGLES, dc['count'], gl.UNSIGNED_INT, dc['start'] * obj_model['vertex_buffer']['stride'])
gl.bindVertexArray(0)
window.swapBuffers()
shaderProgram.delete()
gl.deleteVertexArrays([vao])
gl.deleteBuffers([vbo, ebo])
def main():
global lastFrame, planeVAO, planeVBO
# Init GLFW
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(SCR_WIDTH, SCR_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)
# some versions of glfw cause an opengl error when creating a window, make sure that's ignored.
gl.init()
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
# Define the viewport dimensions
VP_WIDTH, VP_HEIGHT = window.getFramebufferSize()
gl.viewport(0, 0, VP_WIDTH, VP_HEIGHT)
# Setup some OpenGL options
gl.enable(gl.DEPTH_TEST);
# Setup and compile our shaders
shaderProgram = Shader(SHADOW_MAPPING_VERT, SHADOW_MAPPING_FRAG);
simpleDepthShader = Shader(SHADOW_MAPPING_DEPTH_VERT, SHADOW_MAPPING_DEPTH_FRAG);
debugDepthQuad = Shader(DEBUG_QUAD_VERT, DEBUG_QUAD_FRAG);
# Set texture samples
shaderProgram.use();
# shaderProgram.uniforms.diffuseTexture = 0
# shaderProgram.uniforms.shadowMap = 1
# print(dir(Vertex))
planeVertices = (Vertex * 6)(
# Positions # Normals # Texture Coords
(( 25.0, -0.5, 25.0), (0.0, 1.0, 0.0), (25.0, 0.0)),
((-25.0, -0.5, -25.0), (0.0, 1.0, 0.0), ( 0.0, 25.0)),
((-25.0, -0.5, 25.0), (0.0, 1.0, 0.0), ( 0.0, 0.0)),
(( 25.0, -0.5, 25.0), (0.0, 1.0, 0.0), (25.0, 0.0)),
(( 25.0, -0.5, -25.0), (0.0, 1.0, 0.0), (25.0, 25.0)),
((-25.0, -0.5, -25.0), (0.0, 1.0, 0.0), ( 0.0, 25.0))
)
# Setup plane VAO
planeVAO = gl.genVertexArrays(1)[0]
planeVBO = gl.genBuffers(1)[0]
gl.bindVertexArray(planeVAO)
gl.bindBuffer(gl.ARRAY_BUFFER, planeVBO)
gl.bufferData(gl.ARRAY_BUFFER, bytes(planeVertices), gl.STATIC_DRAW)
gl.enableVertexAttribArray(0)
gl.vertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.position.offset)
gl.enableVertexAttribArray(1)
gl.vertexAttribPointer(1, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.normal.offset)
gl.enableVertexAttribArray(2)
gl.vertexAttribPointer(2, 2, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.texcoord.offset)
gl.bindVertexArray(0)
# Light source
lightPos = Vec3(-2.0, 4.0, -1.0)
# Load textures
woodTexture = load_texture("learningopengl/resources/textures/wood.png")
# Configure depth map FBO
SHADOW_WIDTH = SHADOW_HEIGHT = 4096
depthMapFBO = gl.genFramebuffers(1)[0]
# - Create depth texture
depthMap = gl.genTextures(1)[0]
gl.bindTexture(gl.TEXTURE_2D, depthMap)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.DEPTH_COMPONENT, SHADOW_WIDTH, SHADOW_HEIGHT, 0, gl.DEPTH_COMPONENT, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_BORDER)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_BORDER)
borderColor = Vec4(1.0, 1.0, 1.0, 1.0)
gl.texParameterfv(gl.TEXTURE_2D, gl.TEXTURE_BORDER_COLOR, borderColor)
gl.bindFramebuffer(gl.FRAMEBUFFER, depthMapFBO)
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.TEXTURE_2D, depthMap, 0)
gl.drawBuffer(gl.NONE)
gl.readBuffer(gl.NONE);
gl.bindFramebuffer(gl.FRAMEBUFFER, 0);
gl.clearColor(0.1, 0.1, 0.1, 1.0)
# Game loop
while not window.shouldClose():
# Set frame time
currentFrame = time.perf_counter()
deltaTime = currentFrame - lastFrame;
lastFrame = currentFrame;
# Check and call events
inputMap.begin_frame()
glfw.pollEvents()
input = inputMap.get_input()
camera.processInput(input, 1.0/30.0)
# Change light position over time
lightPos.z = math.cos(time.perf_counter()) * 2.0
# 1. Render depth of scene to texture (from light's perspective)
# - Get light projection/view matrix.
near_plane = 1.0
far_plane = 7.5
lightProjection = Mat4.Ortho(-10.0, 10.0, -10.0, 10.0, near_plane, far_plane)
# lightProjection = glm::perspective(45.0f, (GLfloat)SHADOW_WIDTH / (GLfloat)SHADOW_HEIGHT, near_plane, far_plane); // Note that if you use a perspective projection matrix you'll have to change the light position as the current light position isn't enough to reflect the whole scene.
lightView = Mat4.LookAt(lightPos, Vec3(0.0, 0.0, 0.0), Vec3(1.0, 1.0, 1.0))
lightSpaceMatrix = lightProjection * lightView;
# - now render scene from light's point of view
simpleDepthShader.use()
simpleDepthShader.uniforms.lightSpaceMatrix = lightSpaceMatrix
# glUniformMatrix4fv(glGetUniformLocation(simpleDepthShader.Program, "lightSpaceMatrix"), 1, GL_FALSE, glm::value_ptr(lightSpaceMatrix));
gl.viewport(0, 0, SHADOW_WIDTH, SHADOW_HEIGHT)
gl.bindFramebuffer(gl.FRAMEBUFFER, depthMapFBO)
gl.clear(gl.DEPTH_BUFFER_BIT);
RenderScene(simpleDepthShader);
gl.bindFramebuffer(gl.FRAMEBUFFER, 0)
# 2. Render scene as normal
gl.viewport(0, 0, VP_WIDTH, VP_HEIGHT)
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
shaderProgram.use()
# TODO: use zoon
projection = Mat4.Perspective(45.0, float(SCR_WIDTH) / float(SCR_HEIGHT), 0.1, 100.0)
view = camera.getViewMatrix()
shaderProgram.uniforms.projection = projection
shaderProgram.uniforms.view = view
shaderProgram.uniforms.lightPos = lightPos
shaderProgram.uniforms.viewPos = camera.position
shaderProgram.uniforms.lightSpaceMatrix = lightSpaceMatrix
shaderProgram.uniforms.shadows = 1
shaderProgram.uniforms.diffuseTexture = woodTexture
shaderProgram.uniforms.shadowMap = depthMap
RenderScene(shaderProgram)
# 3. DEBUG: visualize depth map by rendering it to plane
debugDepthQuad.use()
# these are not actually used.
#debugDepthQuad.uniforms.near_plane = near_plane
#debugDepthQuad.uniforms.far_plane = far_plane
debugDepthQuad.uniforms.depthMap = depthMap
# RenderQuad() # uncomment this line to see depth map
# Swap the buffers
window.swapBuffers()
return 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()
window.makeContextCurrent()
# window.setInputMode(glfw.CURSOR, glfw.CURSOR_DISABLED)
window.setKeyCallback(key_callback)
gl.init()
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
# set up the first model
armored_plate_data = objloader.load_obj(os.path.join("springtangent-model-files", "armored_plate.75.75.decimation_test7.obj"))
armored_plate_model = Model.FromJSON(armored_plate_data, InstanceData, PlateInstance)
plane_plate_data = objloader.load_obj(os.path.join("springtangent-model-files", "plane_plate.75.75.decimation_test.00.obj"))
plane_plate_model = Model.FromJSON(plane_plate_data, InstanceData, PlateInstance)
angled_plate_data = objloader.load_obj(os.path.join("springtangent-model-files", "angled_plate_plane.75.25..25.decimated.obj"))
angled_plate_model = Model.FromJSON(angled_plate_data, InstanceData, PlateInstance)
models =[armored_plate_model, plane_plate_model, angled_plate_model]
scene = Scene()
camera = Camera(name='camera', parent=scene)
# set up the data for the instances.
# 30 x 30 array of tiles, which are randomly selected among the above models
instances = {}
transforms = {}
n = 30
for i in range(n):
for j in range(n):
r = random.choice(range(4))
transform = Mat4.Translation(Vec3((i-n//2) * 2, 0.0, (j-n//2) * 2)) * Mat4.Rotation(math.pi/2.0 * r, Vec3(0.0, 1.0, 0.0))
transform_node = TransformNode3D(name='tranform.%i.%i' % (i, j), parent=scene, m=transform)
transforms[i,j] = transform_node
instance = ModelInstance(random.choice(models), model_matrix=transform, parent=transform_node, name='model.%i.%i' % (i,j))
instance.model_matrix = transform
instances[i,j] = instance
instance.r = r
framebuffer_width, framebuffer_height = window.getFramebufferSize()
camera.projection_matrix = Mat4.Perspective(45.0, framebuffer_width/framebuffer_height, 0.1, 100.0)
camera.view_matrix = Mat4.LookAt(Vec3(math.cos(time.clock()), 1.0, math.sin(time.clock())) *15.0, Vec3(0.0, 0.0, 0.0), Vec3(0.0, 1.0, 0.0))
t0 = time.perf_counter()
frames = 0
while not window.shouldClose():
glfw.pollEvents()
gl.enable(gl.DEPTH_TEST)
gl.depthFunc(gl.LEQUAL)
gl.enable(gl.CULL_FACE)
gl.cullFace(gl.BACK)
t = time.perf_counter()
framebuffer_width, framebuffer_height = window.getFramebufferSize()
camera.view_matrix = Mat4.LookAt(Vec3(math.cos(time.clock() * 0.1), 1.0, math.sin(time.clock() * 0.1)) *15.0, Vec3(0.0, 0.0, 0.0), Vec3(0.0, 1.0, 0.0))
viewport = (0, 0, framebuffer_width, framebuffer_height)
camera.render_to_viewport(viewport)
err = gl.getError()
if err:
print("ERROR:", err)
if TEST_ANIMATION:
for i in range(n):
for j in range(n):
instance = instances[i,j]
enabled = math.sin(i+j+t*10.0) > -0.8
instance.set_enabled(enabled)
if enabled:
transform_node = transforms[i,j]
y = (math.sin(t+i) + math.cos(t+j)) * 0.25
transform = Mat4.Translation(Vec3((i-n//2) * 2, y, (j-n//2) * 2)) * Mat4.Rotation(math.pi/2.0 * instance.r, Vec3(0.0, 1.0, 0.0))
transform_node.local_matrix = transform
# TODO: this should be done automatically in nodetree.graphics.Scene.update_instances
instance.instance.model_matrix = transform_node.to_mat4()
scene.update_instances()
window.swapBuffers()
frames += 1
if not frames % 100:
print("FRAME RATE:", float(frames)/(time.perf_counter() - t0))
def setup(self): glfw.setErrorCallback(error_callback) glfw.init()
def main():
glfw.setErrorCallback(error_callback)
print("GL:", gl)
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()
window.makeContextCurrent()
# window.setInputMode(glfw.CURSOR, glfw.CURSOR_DISABLED)
window.setKeyCallback(key_callback)
gl.init()
print("IN MODULE:", gl.getError)
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
gl.enable(gl.DEPTH_TEST)
gl.enable(gl.BLEND)
gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
# set up our application
nodebuilder = NodeBuilder()
# TODO: this stuff should happen automatically.
debugdraw.register_with_nodebuilder(nodebuilder)
transformnode.register_with_nodebuilder(nodebuilder)
physicsnode.register_with_nodebuilder(nodebuilder)
# set up
scene = physicsnode.SceneNode(name='physics_scene') # scenenode.SceneNode(name='scene')
debugdraw_renderer = debugdraw.RendererNode(name='debugdraw_renderer', parent=scene)
sprite_renderer = spritenode.RendererNode(name="sprite_renderer", parent=scene)
# space =
create_wheelchair_guy(scene)
# TODO: finish debugging the get_relative_path method...
# print("wheel_suspension -> wheel_body", wheel_suspension.get_relative_path(wheel_body))
# print("wheel_suspension -> body", wheel_suspension.get_relative_path(body))
# print("wheel_suspension -> player", wheel_suspension.get_relative_path(player))
# print("wheel_suspension -> player_body", wheel_suspension.get_relative_path(body))
#
# print(wheel_suspension.get_node('../../../..'))
# assert(wheel_suspension.get_node('..') is wheel)
# p = '../../../..'
# print("P", wheel_suspension.get_node(p))
# assert(wheel_suspension.get_node(p) is player)
# assert(wheel_suspension.get_node('../wheel_body') is wheel_body)
# p = '../../../player_body'
# print(wheel_suspension.get_node(p))
# assert(wheel_suspension.get_node(p) is body)
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.DEPTH_BUFFER_BIT)
gl.enable(gl.BLEND)
gl.enable(gl.DEPTH_TEST)
sprite_renderer.draw()
gl.disable(gl.BLEND)
gl.disable(gl.DEPTH_TEST)
debugdraw_renderer.draw() # draw the debug draw scene on top of the other stuff.
scene.step(1.0/30.0, iterations=10)
#print(scene.get_node('transform').position, scene.get_node('transform').angle)
window.swapBuffers()
def main():
draw_mode = 1
global lastFrame, planeVAO, planeVBO
# Init GLFW
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(SCR_WIDTH, SCR_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)
# some versions of glfw cause an opengl error when creating a window, make sure that's ignored.
gl.init()
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
# Define the viewport dimensions
VP_WIDTH, VP_HEIGHT = window.getFramebufferSize()
gl.viewport(0, 0, VP_WIDTH, VP_HEIGHT)
# Setup some OpenGL options
gl.enable(gl.DEPTH_TEST);
#Setup and compile our shaders
shaderGeometryPass = Shader(G_BUFFER_VERT, G_BUFFER_FRAG);
shaderLightingPass = Shader(DEFERRED_SHADING_VERT, DEFERRED_SHADING_FRAG);
shaderLightBox = Shader(DEFERRED_LIGHT_BOX_VERT, DEFERRED_LIGHT_BOX_FRAG);
gPosition, gNormal, gAlbedoSpec = gl.genTextures(3)
shaderLightingPass.use()
shaderLightingPass.uniforms.gPosition = gNormal
shaderLightingPass.uniforms.gNormal = gPosition
shaderLightingPass.uniforms.gAlbedoSpec = gAlbedoSpec
# "learningopengl/resources/objects/cyborg/cyborg.obj"
cyborg = Model("learningopengl/resources/objects/cyborg/cyborg.obj")
objectPositions = [
Vec3(-3.0, -3.0, -3.0),
Vec3( 0.0, -3.0, -3.0),
Vec3( 3.0, -3.0, -3.0),
Vec3(-3.0, -3.0, 0.0),
Vec3( 0.0, -3.0, 0.0),
Vec3( 3.0, -3.0, 0.0),
Vec3(-3.0, -3.0, 3.0),
Vec3( 0.0, -3.0, 3.0),
Vec3( 3.0, -3.0, 3.0)
]
NR_LIGHTS = 32
lightPositions = (Vec3 * NR_LIGHTS)()
lightColors = (Vec3 * NR_LIGHTS)()
for i in range(NR_LIGHTS):
lightPositions[i].x = random.uniform(-3.0, 3.0)
lightPositions[i].y = random.uniform(-4.0, 2.0)
lightPositions[i].z = random.uniform(-3.0, 3.0)
lightColors[i].x = random.uniform(0.5, 1.0)
lightColors[i].y = random.uniform(0.5, 1.0)
lightColors[i].z = random.uniform(0.5, 1.0)
# set up the G-buffer
# 3 textures: p
# 1. Positions (RGB)
# 2. Color (RGB) + Specular (A)
# 3. Normal (RGB)
gBuffer = gl.genFramebuffers(1)[0]
gl.bindFramebuffer(gl.FRAMEBUFFER, gBuffer)
# set up the position buffer
gl.bindTexture(gl.TEXTURE_2D, gPosition)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB16F, VP_WIDTH, VP_HEIGHT, 0, gl.RGB, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, gPosition, 0)
# set up the normal buffer
gl.bindTexture(gl.TEXTURE_2D, gNormal);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, VP_WIDTH, VP_HEIGHT, 0, gl.RGB, gl.FLOAT,None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT1, gl.TEXTURE_2D, gNormal, 0)
# set up the color + specular buffer
gl.bindTexture(gl.TEXTURE_2D, gAlbedoSpec);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, VP_WIDTH, VP_HEIGHT, 0, gl.RGBA, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT2, gl.TEXTURE_2D, gAlbedoSpec, 0)
# - Tell OpenGL which color attachments we'll use (of this framebuffer) for rendering
attachments = [gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1, gl.COLOR_ATTACHMENT2]
gl.drawBuffers(attachments)
# - Create and attach depth buffer (renderbuffer)
rboDepth = gl.genRenderbuffers(1)[0]
gl.bindRenderbuffer(gl.RENDERBUFFER, rboDepth)
gl.renderbufferStorage(gl.RENDERBUFFER,gl.DEPTH_COMPONENT, VP_WIDTH, VP_HEIGHT);
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.RENDERBUFFER, rboDepth)
# - Finally check if framebuffer is complete
if gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE:
print("Framebuffer not complete!")
gl.bindFramebuffer(gl.FRAMEBUFFER, 0)
gl.clearColor(0.0, 0.0, 0.0, 0.0)
# Game loop
while not window.shouldClose():
# Set frame time
currentFrame = time.perf_counter()
deltaTime = currentFrame - lastFrame;
lastFrame = currentFrame;
# Check and call events
inputMap.begin_frame()
glfw.pollEvents()
input = inputMap.get_input()
camera.processInput(input, 1.0/30.0)
gl.bindFramebuffer(gl.FRAMEBUFFER, gBuffer)
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
# TODO: use camera.zoom
# 1. Geometry Pass: render scene's geometry/color data into gbuffer
projection = Mat4.Perspective(45.0, float(SCR_WIDTH)/float(SCR_HEIGHT), 0.1, 100.0)
view = camera.getViewMatrix()
model = Mat4.Identity()
shaderGeometryPass.use()
shaderGeometryPass.uniforms.projection = projection
shaderGeometryPass.uniforms.view = view
for objectPosition in objectPositions:
model = Mat4.Translation(objectPosition) * Mat4.Scale(0.25)
shaderGeometryPass.uniforms.model = model
cyborg.draw(shaderGeometryPass)
gl.bindFramebuffer(gl.FRAMEBUFFER, 0)
gl.polygonMode(gl.FRONT_AND_BACK, gl.FILL)
# 2. Lighting Pass: calculate lighting by iterating over a screen filled quad pixel-by-pixel using the gbuffer's content.
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
shaderLightingPass.use()
shaderLightingPass.uniforms.gPosition = gPosition
shaderLightingPass.uniforms.gNormal = gNormal
shaderLightingPass.uniforms.gAlbedoSpec = gAlbedoSpec
# Also send light relevant uniforms
for i, lightPosition in enumerate(lightPositions):
shaderLightingPass.uniforms.lights[i].Position = lightPosition
shaderLightingPass.uniforms.lights[i].Color = lightColors[i]
# Update attenuation parameters and calculate radius
constant = 1.0
linear = shaderLightingPass.uniforms.lights[i].Linear = 0.7
quadratic = shaderLightingPass.uniforms.lights[i].Quadratic = 1.8
# Then calculate radius of light volume/sphere
lightThreshold = 5.0 # 5 / 256
maxBrightness = max(max(lightColors[i].r, lightColors[i].g), lightColors[i].b)
radius = (-linear + math.sqrt(linear * linear - 4 * quadratic * (constant - (256.0 / lightThreshold) * maxBrightness))) / (2 * quadratic)
shaderLightingPass.uniforms.lights[i].Radius = radius
shaderLightingPass.uniforms.viewPos = camera.position
if window.getKey(glfw.KEY_1):
draw_mode = 1
if window.getKey(glfw.KEY_2):
draw_mode = 2
if window.getKey(glfw.KEY_3):
draw_mode = 3
if window.getKey(glfw.KEY_4):
draw_mode = 4
if window.getKey(glfw.KEY_5):
draw_mode = 5
# print("SETTING DRAW MODE:", draw_mode)
try:
shaderLightingPass.uniforms.draw_mode = draw_mode
except:
pass
RenderQuad()
# 2.5. Copy content of geometry's depth buffer to default framebuffer's depth buffer
gl.bindFramebuffer(gl.READ_FRAMEBUFFER, gBuffer);
gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, 0); # Write to default framebuffer
gl.blitFramebuffer(0, 0, VP_WIDTH, VP_HEIGHT, 0, 0, VP_WIDTH, VP_HEIGHT, gl.DEPTH_BUFFER_BIT, gl.NEAREST);
gl.bindFramebuffer(gl.FRAMEBUFFER, 0);
# 3. Render lights on top of scene, by blitting
shaderLightBox.use()
shaderLightBox.uniforms.projection = projection
# glUniformMatrix4fv(glGetUniformLocation(shaderLightBox.Program, "projection"), 1, GL_FALSE, glm::value_ptr(projection));
shaderLightBox.uniforms.view = view
# glUniformMatrix4fv(glGetUniformLocation(shaderLightBox.Program, "view"), 1, GL_FALSE, glm::value_ptr(view));
for i, lightPosition in enumerate(lightPositions):
model = Mat4.Translation(lightPosition) * Mat4.Scale(0.25)
shaderLightBox.uniforms.model = model
shaderLightBox.uniforms.lightColor = lightColors[i]
RenderCube()
# Swap the buffers
window.swapBuffers()
return 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)
if ENABLE_MULTISAMPLE:
glfw.windowHint(glfw.SAMPLES, 4)
window = glfw.createWindow(WIDTH, HEIGHT, "LearnOpenGL")
if window is None:
print('could not open window.')
glfw.terminate()
sys.exit()
window.makeContextCurrent()
# window.setInputMode(glfw.CURSOR, glfw.CURSOR_DISABLED)
window.setKeyCallback(key_callback)
gl.init()
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
framebuffer_width, framebuffer_height = window.getFramebufferSize()
# Framebuffers
framebuffer = gl.genFramebuffers(1)[0]
gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer);
# Create a color attachment texture
textureColorbuffer = generateAttachmentTexture(gl.RGB, framebuffer_width, framebuffer_height);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, textureColorbuffer, 0)
# set up the position buffer
gPosition = gl.genTextures(1)[0]
gl.bindTexture(gl.TEXTURE_2D, gPosition)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB16F, framebuffer_width, framebuffer_height, 0, gl.RGB, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT1, gl.TEXTURE_2D, gPosition, 0)
# set up the normal buffer
gNormal = gl.genTextures(1)[0]
gl.bindTexture(gl.TEXTURE_2D, gNormal)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB16F, framebuffer_width, framebuffer_height, 0, gl.RGB, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT2, gl.TEXTURE_2D, gNormal, 0)
gLight = gl.genTextures(1)[0]
gl.bindTexture(gl.TEXTURE_2D, gLight)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB16F, framebuffer_width, framebuffer_height, 0, gl.RGB, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT3, gl.TEXTURE_2D, gLight, 0)
# - Tell OpenGL which color attachments we'll use (of this framebuffer) for rendering
attachments = [gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1, gl.COLOR_ATTACHMENT2]
gl.drawBuffers(attachments)
gDepth = gl.genTextures(1)[0]
gl.bindTexture(gl.TEXTURE_2D, gDepth)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.DEPTH24_STENCIL8, framebuffer_width, framebuffer_height, 0, gl.DEPTH_STENCIL, gl.UNSIGNED_INT_24_8, None)
# gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB16F, framebuffer_width, framebuffer_height, 0, gl.RGB, gl.FLOAT, None)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT, gl.TEXTURE_2D, gDepth, 0)
# Create a renderbuffer object for depth and stencil attachment (we won't be sampling these)
# rbo = gl.genRenderbuffers(1)[0]
# gl.bindRenderbuffer(gl.RENDERBUFFER, rbo)
# gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH24_STENCIL8, framebuffer_width, framebuffer_height); # Use a single renderbuffer object for both a depth AND stencil buffer.
# gl.bindRenderbuffer(gl.RENDERBUFFER, 0);
# gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT, gl.RENDERBUFFER, rbo) # Now actually attach it
# Now that we actually created the framebuffer and added all attachments we want to check if it is actually complete now
if gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE:
print("ERROR::FRAMEBUFFER:: Framebuffer is not complete!")
gl.bindFramebuffer(gl.FRAMEBUFFER, 0)
deferred_textures = {
'screenTexture': textureColorbuffer,
'normalTexture': gNormal,
'positionTexture': gPosition,
'lightTexture': gLight,
'depthTexture': gDepth
}
scene = Scene()
camera = Camera(scene=scene)
quad_scene = Scene()
quad_camera = Camera(scene=quad_scene)
light_scene = Scene()
light_camera = Camera(scene=light_scene, clear=0)
light_camera.clear = gl.COLOR_BUFFER_BIT
light_camera.clear_color = (0.0, 0.0, 0.0, 0.0)
light_camera.projection_matrix = camera.projection_matrix = Mat4.Perspective(45.0, framebuffer_width/framebuffer_height, 0.1, 100.0)
light_camera.view_matrix = camera.view_matrix = Mat4.LookAt(Vec3(math.cos(time.clock()), 1.0, math.sin(time.clock())) *15.0, Vec3(0.0, 0.0, 0.0), Vec3(0.0, 1.0, 0.0))
# light volume model
light_volume_data = objloader.load_obj(os.path.join("springtangent-model-files", "lightsphere", "lightsphere.obj"), calculate_normals=True)
light_volume_model = Model.FromJSON(light_volume_data, PointLightInstanceData, PlateInstance)
# other models
armored_plate_data = objloader.load_obj(os.path.join("springtangent-model-files", "armored_plate.75.75.decimation_test7.obj"), calculate_normals=True)
armored_plate_model = Model.FromJSON(armored_plate_data, InstanceData, PlateInstance)
plane_plate_data = objloader.load_obj(os.path.join("springtangent-model-files", "plane_plate.75.75.decimation_test.00.obj"), calculate_normals=True)
plane_plate_model = Model.FromJSON(plane_plate_data, InstanceData, PlateInstance)
angled_plate_data = objloader.load_obj(os.path.join("springtangent-model-files", "angled_plate_plane.75.25..25.decimated.obj"), calculate_normals=True)
angled_plate_model = Model.FromJSON(angled_plate_data, InstanceData, PlateInstance)
angled_to_rounded_data = objloader.load_obj(os.path.join("springtangent-model-files", "angled_to_round_adapter.75.25.25", "angled_to_rounded_adapter.75.25.25.decimated.obj"), calculate_normals=True)
angled_to_rounded_model = Model.FromJSON(angled_to_rounded_data, InstanceData, PlateInstance)
models = [armored_plate_model, plane_plate_model, angled_plate_model, angled_to_rounded_model]
deferred_shader = ShaderProgram(GBUFFER_VERT, GBUFFER_FRAG)
deferred_light_shader = ShaderProgram(GBUFFER_LIGHT_VERT, GBUFFER_LIGHT_FRAG)
for mesh in light_volume_model.meshes:
mesh.shader = deferred_light_shader
mesh.material = deferred_textures
# replace the shader with the deferred shader in all meshes
for model in models:
for mesh in model.meshes:
mesh.shader = deferred_shader
# set up the data for the instances.
# 30 x 30 array of tiles, which are randomly selected among the above models
n = 30
instances = {}
for i in range(n):
for j in range(n):
r = random.choice(range(4))
transform = Mat4.Translation(Vec3((i-n//2) * 2, 0.0, (j-n//2) * 2)) * Mat4.Rotation(math.pi/2.0 * r, Vec3(0.0, 1.0, 0.0))
instance = scene.add(random.choice(models), InstanceData(transform))
instance.r = r
instances[i,j] = instance
nlights = 400
for i in range(nlights):
transform = Mat4.Translation(Vec3(random.uniform(-n/2, n/2), random.uniform(-1.0, 1.0), random.uniform(-n/2,n/2))) * Mat4.Scale(random.uniform(2.0, 10.0))
instance = light_scene.add(light_volume_model, PointLightInstanceData(transform, diffuse=Vec3(1.0, 1.0, 1.0), linear_attenuation=0.1, quadratic_attenutation=0.01))
# full screen rectangle
class QuadVert(Structure):
_fields_ = [
('position', Vec2),
('texcoord', Vec2)
]
quad_points = Vector(QuadVert)
quad_points.append(QuadVert(Vec2(-1.0, 1.0), Vec2(0.0, 1.0)))
quad_points.append(QuadVert(Vec2(-1.0, -1.0), Vec2(0.0, 0.0)))
quad_points.append(QuadVert(Vec2( 1.0, -1.0), Vec2(1.0, 0.0)))
quad_points.append(QuadVert(Vec2( 1.0, 1.0), Vec2(1.0, 1.0)))
quad_indices = Vector(c_ubyte)
quad_indices.append(0)
quad_indices.append(1)
quad_indices.append(2)
quad_indices.append(0)
quad_indices.append(2)
quad_indices.append(3)
quad_attribs = BufferAttribs(sizeof(QuadVert))
quad_attribs.add(BufferAttribs.POSITION_INDEX, 2, gl.FLOAT, gl.FALSE, QuadVert.position.offset)
quad_attribs.add(BufferAttribs.TEXCOORD_INDEX, 2, gl.FLOAT, gl.FALSE, QuadVert.texcoord.offset)
quad_shader = ShaderProgram(FRAMEBUFFER_VERT, FRAMEBUFFER_FRAG)
quad_draw_call = DrawCall(gl.UNSIGNED_BYTE, gl.TRIANGLES, 0, len(quad_indices))
quad_material = deferred_textures
quad_mesh = Mesh(quad_shader, quad_draw_call, quad_material)
quad_model = Model(quad_indices.get_data(), quad_points.get_data(), quad_attribs, [quad_mesh], InstanceData, PlateInstance)
# quad_instances = ModelInstances(quad_model)
quad_instance = quad_scene.add(quad_model, InstanceData(Mat4.Identity()))
gl.enable(gl.MULTISAMPLE)
t0 = time.perf_counter()
frames = 0
while not window.shouldClose():
glfw.pollEvents()
t = time.perf_counter()
# render scene to gbuffer
gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer)
gl.enable(gl.DEPTH_TEST)
gl.depthFunc(gl.LEQUAL)
gl.enable(gl.CULL_FACE)
gl.cullFace(gl.BACK)
# set up gbuffer for writing
attachments = [gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1, gl.COLOR_ATTACHMENT2]
gl.drawBuffers(attachments)
framebuffer_width, framebuffer_height = window.getFramebufferSize()
light_camera.view_matrix = camera.view_matrix = Mat4.LookAt(Vec3(math.cos(time.clock() * 0.1), 1.0, math.sin(time.clock() * 0.1)) *15.0, Vec3(0.0, 0.0, 0.0), Vec3(0.0, 1.0, 0.0))
viewport = (0, 0, framebuffer_width, framebuffer_height)
camera.render_to_viewport(viewport)
# render lights to gbuffer
gl.drawBuffer(gl.COLOR_ATTACHMENT3)
gl.depthFunc(gl.GREATER)
gl.enable(gl.CULL_FACE)
gl.cullFace(gl.FRONT)
gl.enable(gl.BLEND)
gl.blendEquation(gl.FUNC_ADD)
gl.blendFunc(gl.ONE, gl.ONE)
light_camera.render_to_viewport(viewport)
err = gl.getError()
if err:
print("ERROR:", err)
if TEST_ANIMATION:
for i in range(n):
for j in range(n):
instance = instances[i,j]
enabled = True # math.sin(i+j+t*10.0) > -0.8
# instance.set_enabled(enabled)
if enabled:
y = (math.sin(t+i) + math.cos(t+j)) * 0.25
transform = Mat4.Translation(Vec3((i-n//2) * 2, y, (j-n//2) * 2)) * Mat4.Rotation(math.pi/2.0 * instance.r, Vec3(0.0, 1.0, 0.0))
instance.model_matrix = transform
# render quad with texture
gl.bindFramebuffer(gl.FRAMEBUFFER, 0)
gl.disable(gl.BLEND)
gl.disable(gl.CULL_FACE)
gl.disable(gl.DEPTH_TEST) # We don't care about depth information when rendering a single quad
quad_camera.clear_color = (1.0, 1.0, 1.0, 1.0)
quad_camera.clear = gl.COLOR_BUFFER_BIT
quad_camera.render_to_viewport(viewport)
scene.update_instances()
quad_scene.update_instances()
light_scene.update_instances()
window.swapBuffers()
frames += 1
if not frames % 100:
print("FRAME RATE:", float(frames)/(time.perf_counter() - t0))
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)
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
shaderProgram = Shader(VERTEX_SHADER_SOURCE, FRAGMENT_SHADER_SOURCE)
shaderProgram.use()
vao = gl.genVertexArrays(1)[0]
vbo, ebo = gl.genBuffers(2)
# 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)
# Position attribute
gl.vertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.position.offset)
gl.enableVertexAttribArray(0)
# Color attribute
gl.vertexAttribPointer(1, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.color.offset)
gl.enableVertexAttribArray(1)
# TexCoord attribute
gl.vertexAttribPointer(2, 2, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.texcoord.offset)
gl.enableVertexAttribArray(2)
# 4. unbind the vbo
gl.bindBuffer(gl.ARRAY_BUFFER, 0)
# 4. Unbind the VAO
gl.bindVertexArray(0)
# create the texture object, load the texture
# Load and create a texture
texture1, texture2 = gl.genTextures(2)
# Texture 1
load_texture(texture1, 'learningopengl/resources/textures/container.jpg')
# Texture 2
load_texture(texture2, 'learningopengl/resources/textures/awesomeface.png')
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)
shaderProgram.use()
t = time.perf_counter()
translation = Mat4.Translation(Vec3(0.5, -0.5, 0.0))
rotation = Mat4.Rotation(t, Vec3(0.0, 0.0, 1.0))
trans = translation * rotation
shaderProgram.uniforms.transform = trans
shaderProgram.uniforms.ourTexture1 = texture1
shaderProgram.uniforms.ourTexture2 = texture2
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(800, 600, "LearnOpenGL")
if window is None:
print('could not open window.')
glfw.terminate()
sys.exit()
window.makeContextCurrent()
window.setKeyCallback(key_callback)
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
shaderProgram = Shader(VERTEX_SHADER_SOURCE, FRAGMENT_SHADER_SOURCE)
shaderProgram.use()
vao = gl.genVertexArrays(1)[0]
vbo, ebo = gl.genBuffers(2)
# 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)
# Position attribute
gl.vertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.position.offset)
gl.enableVertexAttribArray(0)
# Color attribute
gl.vertexAttribPointer(1, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.color.offset)
gl.enableVertexAttribArray(1)
# TexCoord attribute
gl.vertexAttribPointer(2, 2, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.texcoord.offset)
gl.enableVertexAttribArray(2)
# 4. unbind the vbo
gl.bindBuffer(gl.ARRAY_BUFFER, 0)
# 4. Unbind the VAO
gl.bindVertexArray(0)
# create the texture object, load the texture
# Load and create a texture
texture1, texture2 = gl.genTextures(2)
# ====================
# Texture 1
# ====================
gl.bindTexture(gl.TEXTURE_2D, texture1) # All upcoming GL_TEXTURE_2D operations now have effect on our texture object
# Set our texture parameters
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT) # Set texture wrapping to GL_REPEAT
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
# Set texture filtering
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
# Load, create texture and generate mipmaps
img = PIL.Image.open('learningopengl/resources/textures/container.jpg')
img = PIL.ImageOps.flip(img)
width, height = img.size
data = img.convert("RGBA").tobytes("raw", "RGBA")
# unsigned char* image = SOIL_load_image(FileSystem::getPath("resources/textures/container.jpg").c_str(), &width, &height, 0, SOIL_LOAD_RGB);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, data)
gl.generateMipmap(gl.TEXTURE_2D)
gl.bindTexture(gl.TEXTURE_2D, 0) # Unbind texture when done, so we won't accidentily mess up our texture.
# ===================
# Texture 2
# ===================
gl.bindTexture(gl.TEXTURE_2D, texture2)
# Set our texture parameters
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
# Set texture filtering
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
# Load, create texture and generate mipmaps
img = PIL.Image.open('learningopengl/resources/textures/awesomeface.png')
img = PIL.ImageOps.flip(img)
width, height = img.size
data = img.convert("RGBA").tobytes("raw", "RGBA")
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, data)
gl.generateMipmap(gl.TEXTURE_2D)
# SOIL_free_image_data(image);
gl.bindTexture(gl.TEXTURE_2D, 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)
shaderProgram.use()
# Bind Textures using texture units
gl.activeTexture(gl.TEXTURE0)
gl.bindTexture(gl.TEXTURE_2D, texture1);
gl.uniform1i(shaderProgram.getUniformLocation("ourTexture1"), 0);
gl.activeTexture(gl.TEXTURE1);
gl.bindTexture(gl.TEXTURE_2D, texture2);
gl.uniform1i(shaderProgram.getUniformLocation("ourTexture2"), 1);
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(800, 600, "LearnOpenGL")
if window is None:
print('could not open window.')
glfw.terminate()
sys.exit()
window.makeContextCurrent()
window.setKeyCallback(key_callback)
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
shaderProgram = Shader(VERTEX_SHADER_SOURCE, FRAGMENT_SHADER_SOURCE)
shaderProgram.use()
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)
# Position attribute
gl.vertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.position.offset)
gl.enableVertexAttribArray(0)
# Color attribute
gl.vertexAttribPointer(1, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.color.offset)
gl.enableVertexAttribArray(1)
# 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)
shaderProgram.use()
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)
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)
colorShaderProgram = Shader(COLORS_VERTEX_SHADER_SOURCE, COLORS_FRAGMENT_SHADER_SOURCE)
colorShaderProgram.use()
lightVAO, containerVAO = gl.genVertexArrays(2)
vbo, ebo = gl.genBuffers(2)
# 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)
# 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)
# create the texture object, load the texture
# Load and create a texture
# texture1, texture2 = gl.genTextures(2)
# Texture 1
# load_texture(texture1, 'learningopengl/resources/textures/container.jpg')
# Texture 2
# load_texture(texture2, 'learningopengl/resources/textures/awesomeface.png')
# window.setFrameBufferSizeCallback(lambda: )
# glfwSetFramebufferSizeCallback(window, framebuffer_size_callback)
sb = True
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)
colorShaderProgram.use()
colorShaderProgram.uniforms.objectColor = Vec3(1.0, 0.5, 0.31)
colorShaderProgram.uniforms.lightColor = Vec3(1.0, 0.5, 1.0)
# create transformations
# view = Mat4.Translation(Vec3(0.0, 0.0, -3.0))
view = camera.getViewMatrix()
projection = Mat4.Perspective(45.0, float(WIDTH) / float(HEIGHT), 0.1, 100.0)
# assign the transformations
colorShaderProgram.uniforms.view = view
colorShaderProgram.uniforms.projection = projection
# draw the container
gl.bindVertexArray(containerVAO)
model = Mat4.Identity()
colorShaderProgram.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
lightPos = Vec3(1.2, 1.0, 2.0)
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()
colorShaderProgram.delete()
gl.deleteVertexArrays([containerVAO, lightVAO ])
gl.deleteBuffers([vbo, ebo])