New rendering option: FSA!

This completes the pipeline make-over, as started in 2006. With this
option, during rendering, each sample for every layer and pass is being
saved on disk (looks like non-antialiased images). Then the composite 
and color correction happens, then a clip to 0-1 range, and only in end 
all samples get combined - using sampling filters such as gauss/mitch/catmul.

This results in artefact-free antialiased images. Even Z-combine or
ID masks now work perfect for it! 

This is an unfinished commit btw; Brecht will finish this for strands.
Also Halo doesnt work yet.

To activate FSA: press "Save Buffers" and the new button next to it. :)

1 files changed, 21 insertions, 1 deletions

diff --git a/source/blender/nodes/intern/CMP_nodes/CMP_idMask.c b/source/blender/nodes/intern/CMP_nodes/CMP_idMask.c
index abb9fa98d97..a40579ac3b2 100644
--- a/source/blender/nodes/intern/CMP_nodes/CMP_idMask.c
+++ b/source/blender/nodes/intern/CMP_nodes/CMP_idMask.c
@@ -63,8 +63,25 @@ static void do_idmask(CompBuf *stackbuf, CompBuf *cbuf, float idnr)
 	MEM_freeN(abuf);
 }
 
+/* full sample version */
+static void do_idmask_fsa(CompBuf *stackbuf, CompBuf *cbuf, float idnr)
+{
+	float *rect, *rs;
+	int x;
+	
+	rect= cbuf->rect;
+	rs= stackbuf->rect;
+	for(x= cbuf->x*cbuf->y - 1; x>=0; x--)
+		if(rect[x]==idnr)
+			rs[x]= 1.0f;
+	
+}
+
+
 static void node_composit_exec_idmask(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
 {
+	RenderData *rd= data;
+	
 	if(out[0]->hasoutput==0)
 		return;
 	
@@ -77,7 +94,10 @@ static void node_composit_exec_idmask(void *data, bNode *node, bNodeStack **in,
 		
 		stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_VAL, 1); /* allocs */;
 		
-		do_idmask(stackbuf, cbuf, (float)node->custom1);
+		if(rd->scemode & R_FULL_SAMPLE)
+			do_idmask_fsa(stackbuf, cbuf, (float)node->custom1);
+		else
+			do_idmask(stackbuf, cbuf, (float)node->custom1);
 		
 		out[0]->data= stackbuf;
 	}