Ejemplo n.º 1
0
void MemExploreApp::update()
{
  Vec2f center = getWindowCenter();

  mCameraArcball.resetQuat();
  mCameraArcball.mouseDown(center);
  mCameraArcball.mouseDrag(getWindowSize() - mMousePos);
  mCamera.setOrientation(mCameraArcball.getQuat() * mCamera.getOrientation());

  // Reset mouse position to center of screen
  if(mIsFullscreen) {
    Vec2f center = getWindowCenter();
    CGSetLocalEventsSuppressionInterval(0.0);
    CGWarpMouseCursorPosition(CGPointMake(center.x, center.y));
    mMousePos = center;
  }

  float speed = 0.01f;
  Vec3f camX = mCamera.getOrientation() * Vec3f::xAxis() * speed;
  Vec3f camY = mCamera.getOrientation() * Vec3f::yAxis() * speed;
  Vec3f camZ = mCamera.getOrientation() * Vec3f::zAxis() * speed;
  
  if(mKeysDown.count('w')) mCameraAcc -= camZ;
  if(mKeysDown.count('a')) mCameraAcc -= camX;
  if(mKeysDown.count('s')) mCameraAcc += camZ;
  if(mKeysDown.count('d')) mCameraAcc += camX;
  if(mKeysDown.count('q')) mCameraAcc += camY;
  if(mKeysDown.count('e')) mCameraAcc -= camY;

  mCameraVel += mCameraAcc;
  mCamera.setEyePoint(mCamera.getEyePoint() + mCameraVel);
  mCameraVel *= 0.975f;
  mCameraAcc *= 0.8f;
}
Ejemplo n.º 2
0
void CompassApp::drawCardinalTex( char d, const vec3 &location, const vec3 &localRotation )
{
	const float kRectHalfWidth = kTargetSize / 2.0f;
	Rectf destRect( kRectHalfWidth, kRectHalfWidth, -kRectHalfWidth, -kRectHalfWidth );
	ivec2 texPos = mCardinalPositions[d];
	Area srcArea( texPos.x, texPos.y, texPos.x + mCardinalSize.x, texPos.y + mCardinalSize.y);

	gl::pushModelView();

	gl::translate( location );

#if 1
	gl::rotate( angleAxis( localRotation.x, vec3(1,0,0) ) );
	gl::rotate( angleAxis( localRotation.y, vec3(0,1,0) ) );
	gl::rotate( angleAxis( localRotation.z, vec3(0,0,1) ) );
#else
	// draw billboarded, flip to face eye point
	gl::rotate( mCam.getOrientation() );
	gl::rotate( M_PI, vec3( 0, 1, 0 ) );
#endif

	gl::draw( mCardinalTex, srcArea, destRect );

	gl::popModelView();
}
Ejemplo n.º 3
0
void MemExploreApp::draw()
{
  mTexture = gl::Texture(mDataPointer, GL_RGBA, mVolumeDim * mTilesDim, mVolumeDim * mTilesDim);
  mTexture.setWrap(GL_REPEAT, GL_REPEAT);
  mTexture.setMinFilter(GL_NEAREST);
  mTexture.setMagFilter(GL_NEAREST);
  
  float frustum[6];
  mCamera.getFrustum(&frustum[0], &frustum[1], &frustum[2], &frustum[3], &frustum[4], &frustum[5]);

  mFbo.bindFramebuffer();
  gl::setMatricesWindow(mFbo.getSize(), false);

  mProgram.bind();
  mProgram.uniform("uTexture", 0);
  mProgram.uniform("uVolumeDim", mVolumeDim);
  mProgram.uniform("uTilesDim", mTilesDim);
  mProgram.uniform("uTime", (float)getElapsedSeconds());
  mProgram.uniform("uEyePoint", mCamera.getEyePoint());
  mProgram.uniform("uXAxis", mCamera.getOrientation() * Vec3f::xAxis());
  mProgram.uniform("uYAxis", mCamera.getOrientation() * Vec3f::yAxis());
  mProgram.uniform("uViewDistance", mCamera.getAspectRatio() / abs(frustum[2] - frustum[0]) * mCamera.getNearClip());
  mProgram.uniform("uNegViewDir", -mCamera.getViewDirection().normalized());
  mProgram.uniform("uAspectRatio", mCamera.getAspectRatio());
  mTexture.enableAndBind();
  gl::drawSolidRect(mFbo.getBounds());
  mTexture.unbind();
  mProgram.unbind();
  
  mFbo.unbindFramebuffer();
  
  gl::setMatricesWindow(getWindowSize());
  gl::draw(mFbo.getTexture(), getWindowBounds());
}