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 step(self):
window = self.get_node('/window')
scene = self.get_node('/window/scene')
sprite_renderer = self.get_node('/window/scene/sprite_renderer')
debugdraw_renderer = self.get_node('/window/scene/debugdraw_renderer')
if window.should_close():
sys.exit()
# trigger the callbacks
glfw.pollEvents()
window.make_context_current()
framebuffer_width, framebuffer_height = window.get_framebuffer_size()
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)
scene.emit('predraw')
debugdraw_renderer.draw() # draw the debug draw scene on top of the other stuff.
scene.emit('postdraw')
scene.step()
#print(scene.get_node('transform').position, scene.get_node('transform').angle)
window.swap_buffers()
def render_to_viewport(self, viewport):
x, y, fb_w, fb_h = viewport
gl.viewport(x, y, fb_w, fb_h)
if self.clear:
gl.clearColor(*self.clear_color)
gl.clear(self.clear)
self.scene.draw(viewport, self)
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])
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():
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)
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()
