Experiment with adding output file meta data from render engine
The idea is to make it possible to report extra meta data from render engine to the file writing. This way we can provide additional information such as number of samples rendered by resumable Cycles rendering so we can easily combine files back. Currently only report number of samples from Cycles when rendering a single render-layer scene. This is something what was required here at the studio. We can easily extend that further. Ideally we would also need to support non-string metadata, but that's for later. Reviewers: mont29, campbellbarton Reviewed By: mont29, campbellbarton Subscribers: sybren, candreacchio Differential Revision: https://developer.blender.org/D2502
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@ -381,6 +381,9 @@ void BlenderSession::render()
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BL::RenderSettings::layers_iterator b_layer_iter;
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BL::RenderResult::views_iterator b_view_iter;
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/* We do some special meta attributes when we only have single layer. */
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const bool is_single_layer = (r.layers.length() == 1);
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for(r.layers.begin(b_layer_iter); b_layer_iter != r.layers.end(); ++b_layer_iter) {
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b_rlay_name = b_layer_iter->name();
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@ -475,6 +478,15 @@ void BlenderSession::render()
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break;
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}
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if(is_single_layer) {
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BL::RenderResult b_rr = b_engine.get_result();
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string num_aa_samples = string_printf("%d", session->params.samples);
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b_rr.stamp_data_add_field("Cycles Samples", num_aa_samples.c_str());
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/* TODO(sergey): Report whether we're doing resumable render
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* and also start/end sample if so.
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*/
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}
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/* free result without merging */
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end_render_result(b_engine, b_rr, true, true, false);
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