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Compositor: negative color support for ASC-CDL offset

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Since the color wheel can't handle negative colors usefully, use a basis value for the initial RGB.
This commit is contained in:
Campbell Barton
2016-05-04 23:56:38 +10:00
parent 980f3c3693
commit ddd6be1834
4 changed files with 15 additions and 1 deletions
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7
source/blender/compositor/nodes/COM_ColorBalanceNode.cpp
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@@ -58,7 +58,12 @@ void ColorBalanceNode::convertToOperations(NodeConverter &converter, const Compo
}
else {
ColorBalanceASCCDLOperation *operationCDL = new ColorBalanceASCCDLOperation();
operationCDL->setOffset(n->offset);
float offset[3];
copy_v3_fl(offset, n->offset_basis);
add_v3_v3(offset, n->offset);
operationCDL->setOffset(offset);
operationCDL->setPower(n->power);
operationCDL->setSlope(n->slope);
operation = operationCDL;

1
source/blender/editors/space_node/drawnode.c
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@@ -1953,6 +1953,7 @@ static void node_composit_buts_colorbalance(uiLayout *layout, bContext *UNUSED(C
uiTemplateColorPicker(col, ptr, "offset", 1, 1, 0, 1);
row = uiLayoutRow(col, false);
uiItemR(row, ptr, "offset", 0, NULL, ICON_NONE);
uiItemR(col, ptr, "offset_basis", 0, NULL, ICON_NONE);
col = uiLayoutColumn(split, false);
uiTemplateColorPicker(col, ptr, "power", 1, 1, 0, 1);

2
source/blender/makesdna/DNA_node_types.h
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@@ -689,6 +689,8 @@ typedef struct NodeColorBalance {
float slope[3];
float offset[3];
float power[3];
float offset_basis;
char _pad[4];
/* LGG parameters */
float lift[3];

6
source/blender/makesrna/intern/rna_nodetree.c
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@@ -5892,6 +5892,12 @@ static void def_cmp_colorbalance(StructRNA *srna)
RNA_def_property_ui_range(prop, 0, 2, 0.1, 3);
RNA_def_property_ui_text(prop, "Slope", "Correction for Highlights");
RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_NodeColorBalance_update_cdl");
prop = RNA_def_property(srna, "offset_basis", PROP_FLOAT, PROP_NONE);
RNA_def_property_range(prop, -FLT_MAX, FLT_MAX);
RNA_def_property_ui_range(prop, -1.0, 1.0, 1.0, 2);
RNA_def_property_ui_text(prop, "Basis", "Support negative color by using this as the RGB basis");
RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_NodeColorBalance_update_cdl");
}
static void def_cmp_huecorrect(StructRNA *srna)