def set_3d(self):
""" Configure OpenGL to draw in 3d.
"""
width, height = self.get_size()
gl.enable(gl.DEPTH_TEST)
gl.viewport(0, 0, width, height)
gl.matrix_mode(gl.PROJECTION)
gl.load_identity()
glu.perspective(90.0, width / float(height), 0.1, 60.0)
gl.matrix_mode(gl.MODELVIEW)
gl.load_identity()
x, y = self.rotation
gl.rotatef(x, 0, 1, 0)
gl.rotatef(-y, math.cos(math.radians(x)), 0, math.sin(math.radians(x)))
gl.translatef(*mul(self.position, -1))
def setup_fog():
""" Configure the OpenGL fog properties.
"""
# Enable fog. Fog "blends a fog color with each rasterized pixel fragment's
# post-texturing color."
gl.enable(gl.FOG)
# Set the fog color.
gl.fogfv(gl.FOG_COLOR, (gl.float * 4)(0.5, 0.69, 1.0, 1))
# Say we have no preference between rendering speed and quality.
gl.hint(gl.FOG_HINT, gl.DONT_CARE)
# Specify the equation used to compute the blending factor.
gl.fogi(gl.FOG_MODE, gl.LINEAR)
# How close and far away fog starts and ends. The closer the start and end,
# the denser the fog in the fog range.
gl.fogf(gl.FOG_START, 20.0)
gl.fogf(gl.FOG_END, 60.0)
def setup():
""" Basic OpenGL configuration.
"""
# Set the color of "clear", i.e. the sky, in rgba.
gl.clear_color(0.5, 0.69, 1.0, 1)
# Enable culling (not rendering) of back-facing facets -- facets that aren't
# visible to you.
gl.enable(gl.CULL_FACE)
# Set the texture minification/magnification function to gl.NEAREST (nearest
# in Manhattan distance) to the specified texture coordinates. gl.NEAREST
# "is generally faster than gl.LINEAR, but it can produce textured images
# with sharper edges because the transition between texture elements is not
# as smooth."
gl.tex_parameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
gl.tex_parameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
gl.active_texture(gl.TEXTURE1)
gl.tex_envi(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.DECAL)
gl.tex_parameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
gl.tex_parameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
gl.active_texture(gl.TEXTURE0)
setup_fog()
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(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()
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():
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])