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Fix #35327: compositing Z combine node was not giving the same result as previous

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versions when the Z values were the same, Also was inconsistent between full sample
on/off.
This commit is contained in:
Brecht Van Lommel 2013-05-13 10:40:42 +00:00
parent 4e5541a9a6
commit fa4ef0828e
2 changed files with 18 additions and 18 deletions
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15
source/blender/compositor/nodes/COM_ZCombineNode.cpp
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@ -71,9 +71,18 @@ void ZCombineNode::convertToOperations(ExecutionSystem *system, CompositorContex
else {
// not full anti alias, use masking for Z combine. be aware it uses anti aliasing.
// step 1 create mask
MathGreaterThanOperation *maskoperation = new MathGreaterThanOperation();
this->getInputSocket(1)->relinkConnections(maskoperation->getInputSocket(0), 1, system);
this->getInputSocket(3)->relinkConnections(maskoperation->getInputSocket(1), 3, system);
NodeOperation *maskoperation;
if (this->getbNode()->custom1) {
maskoperation = new MathGreaterThanOperation();
this->getInputSocket(1)->relinkConnections(maskoperation->getInputSocket(0), 3, system);
this->getInputSocket(3)->relinkConnections(maskoperation->getInputSocket(1), 1, system);
}
else {
maskoperation = new MathLessThanOperation();
this->getInputSocket(1)->relinkConnections(maskoperation->getInputSocket(0), 1, system);
this->getInputSocket(3)->relinkConnections(maskoperation->getInputSocket(1), 3, system);
}
// step 2 anti alias mask bit of an expensive operation, but does the trick
AntiAliasOperation *antialiasoperation = new AntiAliasOperation();

21
source/blender/compositor/operations/COM_ZCombineOperation.cpp
View File

@ -123,13 +123,7 @@ void ZCombineMaskOperation::executePixel(float output[4], float x, float y, Pixe
this->m_image1Reader->read(color1, x, y, sampler);
this->m_image2Reader->read(color2, x, y, sampler);
float fac = mask[0];
// multiply mask with alpha, if mask == 0 color1, else color2 make sure
float mfac = 1.0f - fac;
output[0] = color1[0] * mfac + color2[0] * fac;
output[1] = color1[1] * mfac + color2[1] * fac;
output[2] = color1[2] * mfac + color2[2] * fac;
output[3] = max(color1[3], color2[3]);
interp_v4_v4v4(output, color1, color2, 1.0f - mask[0]);
}
void ZCombineMaskAlphaOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
@ -142,15 +136,12 @@ void ZCombineMaskAlphaOperation::executePixel(float output[4], float x, float y,
this->m_image1Reader->read(color1, x, y, sampler);
this->m_image2Reader->read(color2, x, y, sampler);
float fac = mask[0];
// multiply mask with alpha, if mask == 0 color1, else color2 make sure
float fac = (1.0f - mask[0])*(1.0f - color1[3]) + mask[0]*color2[3];
float mfac = 1.0f - fac;
float alpha = color1[3] * mfac + color2[3] * fac;
float facalpha = fac * alpha;
mfac = 1.0f - facalpha;
output[0] = color1[0] * mfac + color2[0] * facalpha;
output[1] = color1[1] * mfac + color2[1] * facalpha;
output[2] = color1[2] * mfac + color2[2] * facalpha;
output[0] = color1[0] * mfac + color2[0] * fac;
output[1] = color1[1] * mfac + color2[1] * fac;
output[2] = color1[2] * mfac + color2[2] * fac;
output[3] = max(color1[3], color2[3]);
}