1 files changed, 53 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_MixSoftLightOperation.cpp b/source/blender/compositor/operations/COM_MixSoftLightOperation.cpp
new file mode 100644
index 00000000000..3195b3440ec
--- /dev/null
+++ b/source/blender/compositor/operations/COM_MixSoftLightOperation.cpp
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor: 
+ *		Jeroen Bakker 
+ *		Monique Dewanchand
+ */
+
+#include "COM_MixSoftLightOperation.h"
+
+MixSoftLightOperation::MixSoftLightOperation(): MixBaseOperation() {
+}
+
+void MixSoftLightOperation::executePixel(float* outputValue, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) {
+	float inputColor1[4];
+	float inputColor2[4];
+	float value;
+	
+	inputValueOperation->read(&value, x, y, sampler, inputBuffers);
+	inputColor1Operation->read(&inputColor1[0], x, y, sampler, inputBuffers);
+	inputColor2Operation->read(&inputColor2[0], x, y, sampler, inputBuffers);
+	
+	if (this->useValueAlphaMultiply()) {
+		value *= inputColor2[3];
+	}
+	float valuem = 1.0f-value;
+	float scr, scg, scb;
+	
+	/* first calculate non-fac based Screen mix */
+	scr = 1.0f - (1.0f - inputColor2[0]) * (1.0f - inputColor1[0]);
+	scg = 1.0f - (1.0f - inputColor2[1]) * (1.0f - inputColor1[1]);
+	scb = 1.0f - (1.0f - inputColor2[2]) * (1.0f - inputColor1[2]);
+	
+	outputValue[0] = valuem*(inputColor1[0]) + value*(((1.0f - inputColor1[0]) * inputColor2[0] * (inputColor1[0])) + (inputColor1[0] * scr));
+	outputValue[1] = valuem*(inputColor1[1]) + value*(((1.0f - inputColor1[1]) * inputColor2[1] * (inputColor1[1])) + (inputColor1[1] * scg));
+	outputValue[2] = valuem*(inputColor1[2]) + value*(((1.0f - inputColor1[2]) * inputColor2[2] * (inputColor1[2])) + (inputColor1[2] * scb));
+	outputValue[3] = inputColor1[3];
+}
+