high resolution (I mean REALLY high)?

[pjcast]

Well, short of calculating the size of the title bar and border, and than removing those from the image and saving the bitmap that way... Perhaps, simply not creating a window with titlebar/border?

I think WS_POPUP will eliminate the title bar and maybe borders for Win32. Try setting the "border" to "none" with the miscParams when creating the window.

[wilford]

I'm not familiar with OGRE.Please show the code.Thank you

[Rackle]

I've greatly modified the wikied function High resolution screenshots in order to automatically stitch the various sub-views/grids.

In my previous post in this thread I mentioned problems with DirectX windowed mode (showing the title bar and sizing border) as well as OpenGL windowed mode (black lines around the sub-views) and fullscreen mode (black lines as well as the first grid not using the proper projection matrix). Those were solved by modifying the DirectX and OpenGL render systems. A patch was submitted or you can edit your version of the code (compatible with both Dagon and Eihort).

Code: Select all

	RenderSystems/Direct3D9/src/OgreD3D9RenderWindow.cpp
	----------------------------------------------------
	void D3D9RenderWindow::writeContentsToFile(const String& filename)
	Replaced:
		GetWindowRect(mHWnd, &srcRect);
	With:
		GetClientRect(mHWnd, &srcRect);
		POINT point;
		point.x = srcRect.left;
		point.y = srcRect.top;
		ClientToScreen(mHWnd, &point);
		srcRect.top = point.y;
		srcRect.left = point.x;
		srcRect.bottom += point.y;
		srcRect.right += point.x;


	RenderSystems/GL/src/OgreWin32Window.cpp
	----------------------------------------
	void Win32Window::writeContentsToFile(const String& filename)
	Replaced:
		glReadPixels(0,0, mWidth-1, mHeight-1, GL_RGB, GL_UNSIGNED_BYTE, pBuffer);
	With:
		if (mIsFullScreen)
			glReadBuffer(GL_FRONT);
		glReadPixels(0,0, mWidth, mHeight, GL_RGB, GL_UNSIGNED_BYTE, pBuffer);

In order to fix the problem with the first grid when using the OpenGL render system in fullscreen mode I made a call to glReadBuffer(GL_FRONT). However it is my opinion that this solution is a hack and that it points toward a bug with the OpenGL renderer; it does not behave the same was as the DirectX renderer. Hopefully someone more knowledgeable can look into this.

[rukos1]

Hi,

i added an example implementation of a screenshot class, which is designed for Shoggoth(1.6.x).
Parts of this class based on the previous Eihort (v1.4.x) code (incl. comments) and the Render to Texture - Tutorial.
The approach is to render into a texture and copy the content to a PixelBox.
Finally use Ogre::Image::loadDynamicImage(params) to store the content of the PixelBox into a file. This is the fastest way we could find to make hires screenshots, if you know what can enhance the performance, please let us know.
Here is the link again http://www.ogre3d.org/wiki/High_resolution_screenshots

[Praetor]

It's great to see this topic revisited. Large screenshots are great for showing off. I used to use the old Eihort code, but your screenshot manager looks much smaller and cleaner.

[imtrobin]

I noticed the compositor effects are not rendered out.

It looks a little trickier than just adding active compositors to the viewport, cos the compositor affects the single grid, not the whole scene.

[ghiboz]

hi!
with the new ogre 1.9 the code crashes when update the rt.. any ideas?