public void initialize(RenderManager rm, ViewPort vp) {
renderManager = rm;
renderer = rm.getRenderer();
viewPort = vp;
fsQuad = new Picture("filter full screen quad");
Camera cam = vp.getCamera();
// save view port diensions
left = cam.getViewPortLeft();
right = cam.getViewPortRight();
top = cam.getViewPortTop();
bottom = cam.getViewPortBottom();
originalWidth = cam.getWidth();
originalHeight = cam.getHeight();
// first call to reshape
reshape(vp, cam.getWidth(), cam.getHeight());
}
public void reshape(ViewPort vp, int w, int h) {
// this has no effect at first init but is useful when resizing the canvas with multi views
Camera cam = vp.getCamera();
cam.setViewPort(left, right, bottom, top);
// resizing the camera to fit the new viewport and saving original dimensions
cam.resize(w, h, false);
left = cam.getViewPortLeft();
right = cam.getViewPortRight();
top = cam.getViewPortTop();
bottom = cam.getViewPortBottom();
originalWidth = w;
originalHeight = h;
cam.setViewPort(0, 1, 0, 1);
// computing real dimension of the viewport and resizing he camera
width = (int) (w * (Math.abs(right - left)));
height = (int) (h * (Math.abs(bottom - top)));
width = Math.max(1, width);
height = Math.max(1, height);
cam.resize(width, height, false);
cameraInit = true;
computeDepth = false;
if (renderFrameBuffer == null) {
outputBuffer = viewPort.getOutputFrameBuffer();
}
Collection<Caps> caps = renderer.getCaps();
// antialiasing on filters only supported in opengl 3 due to depth read problem
if (numSamples > 1 && caps.contains(Caps.FrameBufferMultisample)) {
renderFrameBufferMS = new FrameBuffer(width, height, numSamples);
if (caps.contains(Caps.OpenGL31)) {
Texture2D msColor = new Texture2D(width, height, numSamples, Format.RGBA8);
Texture2D msDepth = new Texture2D(width, height, numSamples, Format.Depth);
renderFrameBufferMS.setDepthTexture(msDepth);
renderFrameBufferMS.setColorTexture(msColor);
filterTexture = msColor;
depthTexture = msDepth;
} else {
renderFrameBufferMS.setDepthBuffer(Format.Depth);
renderFrameBufferMS.setColorBuffer(Format.RGBA8);
}
}
if (numSamples <= 1 || !caps.contains(Caps.OpenGL31)) {
renderFrameBuffer = new FrameBuffer(width, height, 1);
renderFrameBuffer.setDepthBuffer(Format.Depth);
filterTexture = new Texture2D(width, height, Format.RGBA8);
renderFrameBuffer.setColorTexture(filterTexture);
}
for (Iterator<Filter> it = filters.iterator(); it.hasNext(); ) {
Filter filter = it.next();
initFilter(filter, vp);
}
if (renderFrameBufferMS != null) {
viewPort.setOutputFrameBuffer(renderFrameBufferMS);
} else {
viewPort.setOutputFrameBuffer(renderFrameBuffer);
}
}