def renderFrame(xOffset, width, height, time, textures, vao):
global g_camera
global g_yFovDeg
global g_model
lightPosition = lu.vec3(0, 0, 0)
sunPosition = lu.vec3(0, 0, 0)
mercuryPosition = getPosition(80, 0.01, time)
saturnPosition = getPosition(300, 0.05, time)
experimentPosition = getPosition(150, 0.02, time)
moonPosition = getPosition(25, 0.1, time)
# This configures the fixed-function transformation from Normalized Device Coordinates (NDC)
# to the screen (pixels - called 'window coordinates' in OpenGL documentation).
# See: https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glViewport.xhtml
glViewport(xOffset, 0, width, height)
# Set the colour we want the frame buffer cleared to,
glClearColor(0.0, 0.0, 0.0, 1.0)
# Tell OpenGL to clear the render target to the clear values for both depth and colour buffers (depth uses the default)
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT)
worldToViewTransform = g_camera.getWorldToViewMatrix([0, 1, 0])
viewToClipTransform = lu.make_perspective(g_yFovDeg, width / height, 0.1,
1500.0)
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
Sphere.drawSphereWithTexture(
experimentPosition, 20.0, "planet1.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/planetFragmentShader.glsl")
Sphere.drawSphereWithTexture(
mercuryPosition, 10.0, "planet2.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/planetFragmentShader.glsl")
Sphere.drawSphereWithTexture(
saturnPosition, 10.0, "fire.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/planetFragmentShader.glsl")
randomNo = random.random()
Sphere.drawSphereWithTexture(
sunPosition, 15.0, "sun.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/sunFragmentShader.glsl")
Sphere.drawSphereWithTexture(
sunPosition, 16.0 + 1 * randomNo, "sun.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/cheekyShader.glsl")
Sphere.drawSphereWithTexture(
sunPosition, 17.0 + 2 * randomNo, "sun.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/cheekyShader.glsl")
Sphere.drawSphereWithTexture(
sunPosition, 18.0 + 3 * randomNo, "sun.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/cheekyShader.glsl")
Sphere.drawSphereWithTexture(
sunPosition, 20.0 + 5 * randomNo, "sun.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/cheekyShader.1.glsl")
Sphere.drawSphereWithTexture(
sunPosition, 24.0 + 9 * randomNo, "sun.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/cheekyShader.2.glsl")
Sphere.drawSphereWithTexture(
sunPosition, 700, "stars3.png", viewToClipTransform,
worldToViewTransform, textures, vao,
lu.transformPoint(worldToViewTransform, lightPosition),
"shaders/allVertexShader.glsl", "shaders/sunFragmentShader.1.glsl")
glDisable(GL_BLEND)
