/**
* iterate through the filter list and renders filters
*
* @param r
* @param sceneFb
*/
private void renderFilterChain(Renderer r, FrameBuffer sceneFb) {
Texture2D tex = filterTexture;
FrameBuffer buff = sceneFb;
boolean msDepth = depthTexture != null && depthTexture.getImage().getMultiSamples() > 1;
for (int i = 0; i < filters.size(); i++) {
Filter filter = filters.get(i);
if (filter.isEnabled()) {
if (filter.getPostRenderPasses() != null) {
for (Iterator<Filter.Pass> it1 = filter.getPostRenderPasses().iterator();
it1.hasNext(); ) {
Filter.Pass pass = it1.next();
pass.beforeRender();
if (pass.requiresSceneAsTexture()) {
pass.getPassMaterial().setTexture("Texture", tex);
if (tex.getImage().getMultiSamples() > 1) {
pass.getPassMaterial().setInt("NumSamples", tex.getImage().getMultiSamples());
} else {
pass.getPassMaterial().clearParam("NumSamples");
}
}
if (pass.requiresDepthAsTexture()) {
pass.getPassMaterial().setTexture("DepthTexture", depthTexture);
if (msDepth) {
pass.getPassMaterial()
.setInt("NumSamplesDepth", depthTexture.getImage().getMultiSamples());
} else {
pass.getPassMaterial().clearParam("NumSamplesDepth");
}
}
renderProcessing(r, pass.getRenderFrameBuffer(), pass.getPassMaterial());
}
}
filter.postFrame(renderManager, viewPort, buff, sceneFb);
Material mat = filter.getMaterial();
if (msDepth && filter.isRequiresDepthTexture()) {
mat.setInt("NumSamplesDepth", depthTexture.getImage().getMultiSamples());
}
if (filter.isRequiresSceneTexture()) {
mat.setTexture("Texture", tex);
if (tex.getImage().getMultiSamples() > 1) {
mat.setInt("NumSamples", tex.getImage().getMultiSamples());
} else {
mat.clearParam("NumSamples");
}
}
buff = outputBuffer;
if (i != lastFilterIndex) {
buff = filter.getRenderFrameBuffer();
tex = filter.getRenderedTexture();
}
renderProcessing(r, buff, mat);
}
}
}
/**
* init the given filter
*
* @param filter
* @param vp
*/
private void initFilter(Filter filter, ViewPort vp) {
filter.setProcessor(this);
if (filter.isRequiresDepthTexture()) {
if (!computeDepth && renderFrameBuffer != null) {
depthTexture = new Texture2D(width, height, Format.Depth24);
renderFrameBuffer.setDepthTexture(depthTexture);
}
computeDepth = true;
filter.init(assetManager, renderManager, vp, width, height);
filter.setDepthTexture(depthTexture);
} else {
filter.init(assetManager, renderManager, vp, width, height);
}
}