Compositor: Always use AA on masks

In a real world it is very weird to disable AA on a mask,
it will give ugly looking result. For some fast preview
passes (like in the node preview) the system can decide
to disable AA without asking user to do anything.

One thing we can consider doing is to remove Feather
option as well. If real compo becomes measurably slower
in cases when mask has no real feather, we can disable
feather internally, without user input. Disabling
feather in the interface is like making things faster
but giving a wrong result, which doesn't sound that
helpful either.

Reviewers: brecht

Reviewed By: brecht

Subscribers: hype, sebastian_k

Differential Revision: https://developer.blender.org/D3677

3 files changed, 2 insertions, 5 deletions

diff --git a/source/blender/compositor/nodes/COM_MaskNode.cpp b/source/blender/compositor/nodes/COM_MaskNode.cpp
index be05840f601..7e29674f9aa 100644
--- a/source/blender/compositor/nodes/COM_MaskNode.cpp
+++ b/source/blender/compositor/nodes/COM_MaskNode.cpp
@@ -62,7 +62,6 @@ void MaskNode::convertToOperations(NodeConverter &converter, const CompositorCon
 
 	operation->setMask(mask);
 	operation->setFramenumber(context.getFramenumber());
-	operation->setSmooth((bool)(editorNode->custom1 & CMP_NODEFLAG_MASK_AA) != 0);
 	operation->setFeather((bool)(editorNode->custom1 & CMP_NODEFLAG_MASK_NO_FEATHER) == 0);
 
 	if ((editorNode->custom1 & CMP_NODEFLAG_MASK_MOTION_BLUR) &&
diff --git a/source/blender/compositor/operations/COM_MaskOperation.cpp b/source/blender/compositor/operations/COM_MaskOperation.cpp
index caafdfe8f0c..efc9f6edd5b 100644
--- a/source/blender/compositor/operations/COM_MaskOperation.cpp
+++ b/source/blender/compositor/operations/COM_MaskOperation.cpp
@@ -54,7 +54,7 @@ void MaskOperation::initExecution()
 
 			BKE_maskrasterize_handle_init(this->m_rasterMaskHandles[0], this->m_mask,
 			        this->m_maskWidth, this->m_maskHeight,
-			        true, this->m_do_smooth, this->m_do_feather);
+			        true, true, this->m_do_feather);
 		}
 		else {
 			/* make a throw away copy of the mask */
@@ -88,7 +88,7 @@ void MaskOperation::initExecution()
 
 				BKE_maskrasterize_handle_init(this->m_rasterMaskHandles[i], mask_temp,
 				                              this->m_maskWidth, this->m_maskHeight,
-				                              true, this->m_do_smooth, this->m_do_feather);
+				                              true, true, this->m_do_feather);
 
 				frame_iter += frame_step;
 			}
diff --git a/source/blender/compositor/operations/COM_MaskOperation.h b/source/blender/compositor/operations/COM_MaskOperation.h
index a586a91682e..02c0e61c31e 100644
--- a/source/blender/compositor/operations/COM_MaskOperation.h
+++ b/source/blender/compositor/operations/COM_MaskOperation.h
@@ -48,7 +48,6 @@ protected:
 	float m_frame_shutter;
 	int   m_frame_number;
 
-	bool m_do_smooth;
 	bool m_do_feather;
 
 	struct MaskRasterHandle *m_rasterMaskHandles[CMP_NODE_MASK_MBLUR_SAMPLES_MAX];
@@ -80,7 +79,6 @@ public:
 		this->m_mask_px_ofs[1] = this->m_maskHeightInv * 0.5f;
 	}
 	void setFramenumber(int frame_number) { this->m_frame_number = frame_number; }
-	void setSmooth(bool smooth) { this->m_do_smooth = smooth; }
 	void setFeather(bool feather) { this->m_do_feather = feather; }
 
 	void setMotionBlurSamples(int samples) { this->m_rasterMaskHandleTot = min(max(1, samples), CMP_NODE_MASK_MBLUR_SAMPLES_MAX); }