diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_ColorMatteOperation.cc')
| -rw-r--r-- | source/blender/compositor/operations/COM_ColorMatteOperation.cc | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_ColorMatteOperation.cc b/source/blender/compositor/operations/COM_ColorMatteOperation.cc index ddfbf415d9c..dec6571f217 100644 --- a/source/blender/compositor/operations/COM_ColorMatteOperation.cc +++ b/source/blender/compositor/operations/COM_ColorMatteOperation.cc @@ -29,6 +29,7 @@ ColorMatteOperation::ColorMatteOperation() this->m_inputImageProgram = nullptr; this->m_inputKeyProgram = nullptr; + flags.can_be_constant = true; } void ColorMatteOperation::initExecution() @@ -82,4 +83,40 @@ void ColorMatteOperation::executePixelSampled(float output[4], } } +void ColorMatteOperation::update_memory_buffer_partial(MemoryBuffer *output, + const rcti &area, + Span<MemoryBuffer *> inputs) +{ + const float hue = m_settings->t1; + const float sat = m_settings->t2; + const float val = m_settings->t3; + for (BuffersIterator<float> it = output->iterate_with(inputs, area); !it.is_end(); ++it) { + const float *in_color = it.in(0); + const float *in_key = it.in(1); + + /* Store matte(alpha) value in [0] to go with + * COM_SetAlphaMultiplyOperation and the Value output. + */ + + float h_wrap; + if ( + /* Do hue last because it needs to wrap, and does some more checks. */ + + /* #sat */ (fabsf(in_color[1] - in_key[1]) < sat) && + /* #val */ (fabsf(in_color[2] - in_key[2]) < val) && + + /* Multiply by 2 because it wraps on both sides of the hue, + * otherwise 0.5 would key all hue's. */ + + /* #hue */ + ((h_wrap = 2.0f * fabsf(in_color[0] - in_key[0])) < hue || (2.0f - h_wrap) < hue)) { + it.out[0] = 0.0f; /* Make transparent. */ + } + + else { /* Pixel is outside key color. */ + it.out[0] = in_color[3]; /* Make pixel just as transparent as it was before. */ + } + } +} + } // namespace blender::compositor |