//-----------------------------------------------------------------------------
// preRender()
//-----------------------------------------------------------------------------
void LLViewerDynamicTexture::preRender(BOOL clear_depth)
{
{
// force rendering to on-screen portion of frame buffer
LLCoordScreen window_pos;
gViewerWindow->getWindow()->getPosition( &window_pos );
mOrigin.set(0, gViewerWindow->getWindowHeightRaw() - mFullHeight); // top left corner
if (window_pos.mX < 0)
{
mOrigin.mX = -window_pos.mX;
}
if (window_pos.mY < 0)
{
mOrigin.mY += window_pos.mY;
mOrigin.mY = llmax(mOrigin.mY, 0) ;
}
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
}
// Set up camera
LLViewerCamera* camera = LLViewerCamera::getInstance();
mCamera.setOrigin(*camera);
mCamera.setAxes(*camera);
mCamera.setAspect(camera->getAspect());
mCamera.setView(camera->getView());
mCamera.setNear(camera->getNear());
glViewport(mOrigin.mX, mOrigin.mY, mFullWidth, mFullHeight);
if (clear_depth)
{
glClear(GL_DEPTH_BUFFER_BIT);
}
}
//-----------------------------------------------------------------------------
// preRender()
//-----------------------------------------------------------------------------
void LLViewerDynamicTexture::preRender(BOOL clear_depth)
{
//only images up to 512x512 are supported
llassert(mFullHeight <= 512);
llassert(mFullWidth <= 512);
if (gGLManager.mHasFramebufferObject && gPipeline.mWaterDis.isComplete())
{ //using offscreen render target, just use the bottom left corner
mOrigin.set(0, 0);
}
else
{ // force rendering to on-screen portion of frame buffer
LLCoordScreen window_pos;
gViewerWindow->getWindow()->getPosition( &window_pos );
mOrigin.set(0, gViewerWindow->getWindowHeightRaw() - mFullHeight); // top left corner
if (window_pos.mX < 0)
{
mOrigin.mX = -window_pos.mX;
}
if (window_pos.mY < 0)
{
mOrigin.mY += window_pos.mY;
mOrigin.mY = llmax(mOrigin.mY, 0) ;
}
}
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
// Set up camera
LLViewerCamera* camera = LLViewerCamera::getInstance();
mCamera.setOrigin(*camera);
mCamera.setAxes(*camera);
mCamera.setAspect(camera->getAspect());
mCamera.setView(camera->getView());
mCamera.setNear(camera->getNear());
glViewport(mOrigin.mX, mOrigin.mY, mFullWidth, mFullHeight);
if (clear_depth)
{
glClear(GL_DEPTH_BUFFER_BIT);
}
}