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Compositor: add viewer node to the default node tree

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Users almost always need a viewer node, so add one to the default node
tree.

Note that the backdrop is already enabled by default, so the backdrop
image will be visible as soon as a render is available (no need to
manually add viewer node or click `cltr+shift+LMB` to show a backdrop
image.

Pull Request: https://projects.blender.org/blender/blender/pulls/138890
This commit is contained in:
Habib Gahbiche
2025-05-15 16:08:19 +02:00
parent 91627b3d47
commit df6e65dd93
1 changed files with 30 additions and 7 deletions
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37
source/blender/editors/space_node/node_edit.cc
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@@ -653,19 +653,42 @@ void ED_node_composit_default(const bContext *C, Scene *sce)
sce->nodetree = blender::bke::node_tree_add_tree_embedded(
nullptr, &sce->id, "Compositing Nodetree", ntreeType_Composite->idname);
bNode *out = blender::bke::node_add_static_node(C, *sce->nodetree, CMP_NODE_COMPOSITE);
out->location[0] = 200.0f;
out->location[1] = 0.0f;
bNode *composite = blender::bke::node_add_static_node(C, *sce->nodetree, CMP_NODE_COMPOSITE);
composite->location[0] = 200.0f;
composite->location[1] = 0.0f;
bNode *in = blender::bke::node_add_static_node(C, *sce->nodetree, CMP_NODE_R_LAYERS);
in->location[0] = -150.0f - in->width;
in->location[1] = 0.0f;
blender::bke::node_set_active(*sce->nodetree, *in);
/* Links from color to color. */
bNodeSocket *fromsock = (bNodeSocket *)in->outputs.first;
bNodeSocket *tosock = (bNodeSocket *)out->inputs.first;
blender::bke::node_add_link(*sce->nodetree, *in, *fromsock, *out, *tosock);
bNode *reroute = blender::bke::node_add_static_node(C, *sce->nodetree, NODE_REROUTE);
reroute->location[0] = 100.0f;
reroute->location[1] = -35.0f;
bNode *viewer = blender::bke::node_add_static_node(C, *sce->nodetree, CMP_NODE_VIEWER);
viewer->location[0] = 200.0f;
viewer->location[1] = -60.0f;
/* Viewer and Composite nodes are linked to Render Layer's output image socket through a reroute
* node. */
blender::bke::node_add_link(*sce->nodetree,
*in,
*(bNodeSocket *)in->outputs.first,
*reroute,
*(bNodeSocket *)reroute->inputs.first);
blender::bke::node_add_link(*sce->nodetree,
*reroute,
*(bNodeSocket *)reroute->outputs.first,
*composite,
*(bNodeSocket *)composite->inputs.first);
blender::bke::node_add_link(*sce->nodetree,
*reroute,
*(bNodeSocket *)reroute->outputs.first,
*viewer,
*(bNodeSocket *)viewer->inputs.first);
BKE_ntree_update_after_single_tree_change(*CTX_data_main(C), *sce->nodetree);
}