diff options
Diffstat (limited to 'source/blender/nodes')
| -rw-r--r-- | source/blender/nodes/composite/nodes/node_composite_colorbalance.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/source/blender/nodes/composite/nodes/node_composite_colorbalance.c b/source/blender/nodes/composite/nodes/node_composite_colorbalance.c index 08019311d4b..81ebc7c4c3b 100644 --- a/source/blender/nodes/composite/nodes/node_composite_colorbalance.c +++ b/source/blender/nodes/composite/nodes/node_composite_colorbalance.c @@ -46,6 +46,36 @@ static bNodeSocketTemplate cmp_node_colorbalance_out[] = { {-1, 0, ""} }; +/* Sync functions update formula parameters for other modes, such that the result is comparable. + * Note that the results are not exactly the same due to differences in color handling (sRGB conversion happens for LGG), + * but this keeps settings comparable. + */ + +void ntreeCompositColorBalanceSyncFromLGG(bNodeTree *UNUSED(ntree), bNode *node) +{ + NodeColorBalance *n = node->storage; + int c; + + for (c = 0; c < 3; ++c) { + n->slope[c] = (2.0f - n->lift[c]) * n->gain[c]; + n->offset[c] = (n->lift[c] - 1.0f) * n->gain[c]; + n->power[c] = (n->gamma[c] != 0.0f) ? 1.0f / n->gamma[c] : 1000000.0f; + } +} + +void ntreeCompositColorBalanceSyncFromCDL(bNodeTree *UNUSED(ntree), bNode *node) +{ + NodeColorBalance *n = node->storage; + int c; + + for (c = 0; c < 3; ++c) { + float d = n->slope[c] + n->offset[c]; + n->lift[c] = (d != 0.0f ? n->slope[c] + 2.0f*n->offset[c] / d : 0.0f); + n->gain[c] = d; + n->gamma[c] = (n->power[c] != 0.0f) ? 1.0f / n->power[c] : 1000000.0f; + } +} + static void node_composit_init_colorbalance(bNodeTree *UNUSED(ntree), bNode *node) { NodeColorBalance *n = node->storage = MEM_callocN(sizeof(NodeColorBalance), "node colorbalance"); |