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feat(shaders_lab): Output node + Functions palette with drag-drop

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- DagKind::Output (new enum): terminal sink; compiler wires fragColor to its source_ids[0]
- dag_catalog: "output" node (1 input, red)
- dag_compile: skips Output in node_<i> emission; final fragColor resolves from Output's connection
- dag_node_editor: no more Add button; drops "DAG_NODE_TYPE" payloads at mouse canvas position; Output cannot be deleted; Output has no output pin
- dag_palette (new fn): Functions window with grouped, draggable node cards
- main.cpp: "Functions" window added; ensure_dag_default seeds plasma + connected Output
This commit is contained in:
Egutierrez
2026-04-24 22:16:47 +02:00
parent e91e80bfcf
commit 0be4b29a4b
10 changed files with 253 additions and 106 deletions
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cpp/functions/gfx/dag_panel.cpp
+8 -6
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@@ -16,18 +16,20 @@ static std::string make_id() {
static ImVec4 kind_color(DagKind kind) {
switch (kind) {
case DagKind::Gen: return ImVec4(0.25f, 0.55f, 0.90f, 1.0f);
case DagKind::Op: return ImVec4(0.65f, 0.40f, 0.90f, 1.0f);
case DagKind::Blend: return ImVec4(0.90f, 0.65f, 0.15f, 1.0f);
case DagKind::Gen: return ImVec4(0.25f, 0.55f, 0.90f, 1.0f);
case DagKind::Op: return ImVec4(0.65f, 0.40f, 0.90f, 1.0f);
case DagKind::Blend: return ImVec4(0.90f, 0.65f, 0.15f, 1.0f);
case DagKind::Output: return ImVec4(0.85f, 0.25f, 0.25f, 1.0f);
}
return ImVec4(1, 1, 1, 1);
}
static const char* kind_label(DagKind kind) {
switch (kind) {
case DagKind::Gen: return "Gen";
case DagKind::Op: return "Op";
case DagKind::Blend: return "Blend";
case DagKind::Gen: return "Gen";
case DagKind::Op: return "Op";
case DagKind::Blend: return "Blend";
case DagKind::Output: return "Output";
}
return "?";
}