void PhysicallyBasedShadingApp::update()
{
// animate the light
if( mAnimateLight ){
mLightPosition = vec3( cos( mTime * 0.5f ) * 8.0f, 8.0f + sin( mTime * 0.25f ) * 3.5f, sin( mTime * 0.5f ) * 8.0f );
mTime += 0.025f;
}
// check for camera properties change
CameraPersp cam = mMayaCam.getCamera();
float sensorHeight = mSensorSize / getWindowAspectRatio();
float fov = 180.0f / M_PI * 2.0f * math<float>::atan( 0.5f * sensorHeight / mFocalLength );
if( mFocalLengthPreset != 0 && mFocalLengthPreset != mPrevFocalLengthPreset ){
mFocalLength = sFocalPresetsValues[ mFocalLengthPreset ];
}
if( mSensorSizePreset != 0 && mSensorSizePreset != mPrevSensorSizePreset ){
mSensorSize = sSensorPresetsValues[ mSensorSizePreset ];
}
if( mFStopPreset != 0 && mFStopPreset != mPrevFStopPreset ){
mFStop = sFStopPresetsValues[ mFStopPreset ];
}
mPrevFocalLengthPreset = mFocalLengthPreset;
mPrevSensorSizePreset = mSensorSizePreset;
mPrevFStopPreset = mFStopPreset;
// update the fov if necessary
if( cam.getFov() != fov ){
cam.setFov( fov );
mMayaCam.setCurrentCam( cam );
}
}
void MarionetteZooApp::update()
{
mFps = getAverageFps();
CameraPersp cam = mMayaCam.getCamera();
if ( cam.getFov() != mCameraFov )
{
cam.setPerspective( mCameraFov, getWindowAspectRatio(), 0.1f, 1000.0f );
mMayaCam.setCurrentCam( cam );
}
if( mCameraLock )
{
if( mCameraEyePoint != cam.getEyePoint() )
{
cam.setEyePoint( mCameraEyePoint );
mMayaCam.setCurrentCam( cam );
}
if( mCameraCenterOfInterestPoint != cam.getCenterOfInterestPoint() )
{
cam.setCenterOfInterestPoint( mCameraCenterOfInterestPoint );
mMayaCam.setCurrentCam( cam );
}
}
else
{
mCameraEyePoint = cam.getEyePoint();
mCameraCenterOfInterestPoint = cam.getCenterOfInterestPoint();
}
// mLight->setDirection( mLightDirection * Vec3f( 1.f, 1.f, -1.f ) );
// mLight->update( cam );
mBulletWorld->update();
mModelManager->update();
}
void PTWeekend::draw()
{
/*
* BEGIN - each frame part
*/
/* Enqueue kernel for execution */
glm::vec3 origin,lower_left, hor, ver;
float theta = camera.getFov() * M_PI / 180.0f;
float half_height = tan(theta / 2.0f);
float half_width = camera.getAspectRatio() * half_height;
origin = camera.getEyePoint();
glm::vec3 u, v, w;
w = -glm::normalize(camera.getViewDirection()); //odd...
u = glm::normalize(glm::cross(glm::vec3(0,1,0), w));
v = glm::cross(w, u);
lower_left = origin - half_width * u - half_height * v - w;
hor = 2.0f * half_width * u;
ver = 2.0f * half_height * v;
pt_assert(cl_set_pinhole_cam_arg(origin, lower_left, hor, ver, cam_buffer, cmd_queue), "Could not fill camera buffer");
clStatus = cmd_queue.enqueueAcquireGLObjects(&img_buffer, NULL, NULL);
pt_assert(clStatus, "Could not acquire gl objects");
cl::Event profiling_evt;
clStatus = cmd_queue.enqueueNDRangeKernel(kernel,
cl::NDRange(0,0),
cl::NDRange(img_width, img_height),
cl::NDRange(local_width,local_height),
NULL,
&profiling_evt);
profiling_evt.wait();
pt_assert(clStatus, "Could not enqueue the kernel");
clStatus = cmd_queue.enqueueReleaseGLObjects(&img_buffer, NULL, NULL);
pt_assert(clStatus, "Could not release gl objects");
cmd_queue.finish();
cl_ulong time_start = profiling_evt.getProfilingInfo<CL_PROFILING_COMMAND_START>();
cl_ulong time_end = profiling_evt.getProfilingInfo<CL_PROFILING_COMMAND_END>();
cl_ulong total_time = time_end - time_start;
std::cout << "Total time: " << total_time * 0.001 * 0.001 << " ms \n";
/*
* END - each frame part
*/
gl::draw(imgTex, Rectf(0, 0, getWindowWidth(), getWindowHeight()));
}
void FrustumCullingApp::update()
{
mFrustumPlaneCached = false;
mAngle -= ( mAngle - mAngleDest ) * 0.1f;
mEye -= ( mEye - mEyeDest ) * 0.2f;
mEyeNormal = Vec3f( sin( mAngle ), 0.0f, cos( mAngle ) );
mCenter = mEye + mEyeNormal * 50.0f;
mCam.setPerspective( 25.0f, getWindowAspectRatio(), 100.0f, 350.0f );
mCam.lookAt( mEye, mCenter, mUp );
calcNearAndFarClipCoordinates( mCam );
if( mIsWatchingCam ){
mREye.lerpEq( mDecay, Vec3f( mEye.x + cos( mCounter * 0.003f ) * 300.0f, 100.0f, mEye.y + sin( mCounter * 0.003f ) * 300.0f ) );
mRCenter.lerpEq( mDecay, Vec3f( mEye + mEyeNormal * 250.0f ) );
mFov -= ( mFov - 60.0f ) * mDecay;
mNear -= ( mNear - 10.0f ) * mDecay;
mFar -= ( mFar - 1500.0f ) * mDecay;
} else {
mREye.lerpEq( mDecay, mEye );
mRCenter.lerpEq( mDecay, mCenter );
mFov -= ( mFov - mCam.getFov() ) * mDecay;
mNear -= ( mNear - mCam.getNearClip() ) * mDecay;
mFar -= ( mFar - mCam.getFarClip() ) * mDecay;
}
mRenderCam.setPerspective( mFov, getWindowAspectRatio(), 10.0f, 1500.0f );
mRenderCam.lookAt( mREye, mRCenter, mUp );
gl::setMatrices( mRenderCam );
mCounter += 1.0f;
}