From de90619a46f2c5896b3ee1d241981b90a1b96269 Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brechtvanlommel@pandora.be>
Date: Sat, 6 Feb 2010 20:25:17 +0000
Subject: Fix #20452: motion blur buttons were missing. Motion blur samples are
 now also decoupled from antialiasing samples. Implemented by Matt, I'm just
 committing the patch.

---
 source/blender/render/intern/include/render_types.h |  1 +
 source/blender/render/intern/source/initrender.c    | 10 +++++++++-
 source/blender/render/intern/source/pipeline.c      |  8 ++++----
 source/blender/render/intern/source/zbuf.c          |  6 +++---
 4 files changed, 17 insertions(+), 8 deletions(-)

(limited to 'source/blender/render')

diff --git a/source/blender/render/intern/include/render_types.h b/source/blender/render/intern/include/render_types.h
index ba995621a98..de7d176759e 100644
--- a/source/blender/render/intern/include/render_types.h
+++ b/source/blender/render/intern/include/render_types.h
@@ -161,6 +161,7 @@ struct Render
 	/* samples */
 	SampleTables *samples;
 	float jit[32][2];
+	float mblur_jit[32][2];
 	ListBase *qmcsamplers;
 	
 	/* shadow counter, detect shadow-reuse for shaders */
diff --git a/source/blender/render/intern/source/initrender.c b/source/blender/render/intern/source/initrender.c
index abff8bf2655..faa5f17649a 100644
--- a/source/blender/render/intern/source/initrender.c
+++ b/source/blender/render/intern/source/initrender.c
@@ -85,15 +85,23 @@
 static void init_render_jit(Render *re)
 {
 	static float jit[32][2];	/* simple caching */
+	static float mblur_jit[32][2];	/* simple caching */
 	static int lastjit= 0;
+	static int last_mblur_jit= 0;
 	
-	if(lastjit!=re->r.osa) {
+	if(lastjit!=re->r.osa || last_mblur_jit != re->r.mblur_samples) {
 		memset(jit, 0, sizeof(jit));
 		BLI_initjit(jit[0], re->r.osa);
+		
+		memset(mblur_jit, 0, sizeof(mblur_jit));
+		BLI_initjit(mblur_jit[0], re->r.mblur_samples);
 	}
 	
 	lastjit= re->r.osa;
 	memcpy(re->jit, jit, sizeof(jit));
+	
+	last_mblur_jit= re->r.mblur_samples;
+	memcpy(re->mblur_jit, mblur_jit, sizeof(mblur_jit));
 }
 
 
diff --git a/source/blender/render/intern/source/pipeline.c b/source/blender/render/intern/source/pipeline.c
index 4ae00c94c6a..95e98c1861c 100644
--- a/source/blender/render/intern/source/pipeline.c
+++ b/source/blender/render/intern/source/pipeline.c
@@ -1929,20 +1929,20 @@ static void do_render_blur_3d(Render *re)
 {
 	RenderResult *rres;
 	float blurfac;
-	int blur= re->r.osa;
+	int blur= re->r.mblur_samples;
 	
 	/* create accumulation render result */
 	rres= new_render_result(re, &re->disprect, 0, RR_USEMEM);
 	
 	/* do the blur steps */
 	while(blur--) {
-		set_mblur_offs( re->r.blurfac*((float)(re->r.osa-blur))/(float)re->r.osa );
+		set_mblur_offs( re->r.blurfac*((float)(re->r.mblur_samples-blur))/(float)re->r.mblur_samples );
 		
-		re->i.curblur= re->r.osa-blur;	/* stats */
+		re->i.curblur= re->r.mblur_samples-blur;	/* stats */
 		
 		do_render_3d(re);
 		
-		blurfac= 1.0f/(float)(re->r.osa-blur);
+		blurfac= 1.0f/(float)(re->r.mblur_samples-blur);
 		
 		merge_renderresult_blur(rres, re->result, blurfac, re->r.alphamode & R_ALPHAKEY);
 		if(re->test_break(re->tbh)) break;
diff --git a/source/blender/render/intern/source/zbuf.c b/source/blender/render/intern/source/zbuf.c
index 6d67c068bdd..612c5660f68 100644
--- a/source/blender/render/intern/source/zbuf.c
+++ b/source/blender/render/intern/source/zbuf.c
@@ -2070,8 +2070,8 @@ void zbuffer_solid(RenderPart *pa, RenderLayer *rl, void(*fillfunc)(RenderPart*,
 			zspan->zofsy= -pa->disprect.ymin - R.jit[pa->sample+zsample][1];
 		}
 		else if(R.i.curblur) {
-			zspan->zofsx= -pa->disprect.xmin - R.jit[R.i.curblur-1][0];
-			zspan->zofsy= -pa->disprect.ymin - R.jit[R.i.curblur-1][1];
+			zspan->zofsx= -pa->disprect.xmin - R.mblur_jit[R.i.curblur-1][0];
+			zspan->zofsy= -pa->disprect.ymin - R.mblur_jit[R.i.curblur-1][1];
 		}
 		else {
 			zspan->zofsx= -pa->disprect.xmin;
@@ -3414,7 +3414,7 @@ static int zbuffer_abuf_render(RenderPart *pa, APixstr *APixbuf, APixstrand *APi
 	if(R.osa)
 		jit= R.jit;
 	else if(R.i.curblur)
-		jit= &R.jit[R.i.curblur-1];
+		jit= &R.mblur_jit[R.i.curblur-1];
 	else
 		jit= NULL;
 	
-- 
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