indigo
09819091c4
Browser column lists all scene materials plus a searchable create-node list; Show Graph (or double-click) loads a material into the node-graph work area. The graph shows the entire network including MaterialX (.mtlx) node graphs, resolving connections through NodeGraph boundaries via UsdShadeUtils::GetValueProducingAttributes, with layered auto-layout for nodes lacking authored uiPosition. Canvas navigates viewport-style (Alt+MMB pan / Alt+RMB zoom) and TAB opens a Nuke-style search popup. Selecting a node shows a typed property editor (live-apply, one undo command per edit) and previews that node's output on the shader ball. The preview renders through its own Hydra engine into a scratch stage that composes the material via a reference to the source root layer (so referenced .mtlx materials work), re-renders until progressive delegates (Arnold/Cycles/Embree) converge, and lights with HDR dome presets (External/Room/Interior/Sunset; CC0 Poly Haven EXRs fetched at CMake configure). texture:format is authored latlong explicitly - left automatic, hdArnold falls back to Arnold's angular fisheye default - and hdCycles gets a -90 X pole rotation to match Storm's +Y-pole sampling. Mutations go through new ICommand subclasses (create shader node, connect/disconnect attrs). imgui-node-editor is vendored (gitignored) with a local one-line patch: c_ScrollButtonIndex 1->2 for MMB pan. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
83 lines
3.4 KiB
CMake
83 lines
3.4 KiB
CMake
# FindImguiNodeEditor.cmake - Find or configure thedmd/imgui-node-editor
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#
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# This module looks for imgui-node-editor in the third_party/imgui-node-editor
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# directory (vendored, docking branch) and compiles its sources directly
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# against this project's own Imgui::Imgui target so it shares the exact same
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# ImGui headers/defines (no second copy of ImGui is pulled in).
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#
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# Inputs:
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# IMGUI_NODE_EDITOR_DIR - Path to imgui-node-editor/NodeEditor root
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#
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# Outputs:
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# ImguiNodeEditor_FOUND
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# ImguiNodeEditor::ImguiNodeEditor (imported STATIC target)
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if(NOT IMGUI_NODE_EDITOR_DIR)
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set(IMGUI_NODE_EDITOR_DIR "${CMAKE_SOURCE_DIR}/third_party/imgui-node-editor/NodeEditor")
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endif()
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if(NOT IMGUI_NODE_EDITOR_BLUEPRINT_UTILITIES_DIR)
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set(IMGUI_NODE_EDITOR_BLUEPRINT_UTILITIES_DIR
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"${CMAKE_SOURCE_DIR}/third_party/imgui-node-editor/Examples/Common/BlueprintUtilities")
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endif()
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find_path(ImguiNodeEditor_INCLUDE_DIR
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NAMES imgui_node_editor.h
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PATHS "${IMGUI_NODE_EDITOR_DIR}/Include"
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NO_DEFAULT_PATH
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)
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set(ImguiNodeEditor_SOURCES
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"${IMGUI_NODE_EDITOR_DIR}/Source/crude_json.cpp"
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"${IMGUI_NODE_EDITOR_DIR}/Source/imgui_canvas.cpp"
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"${IMGUI_NODE_EDITOR_DIR}/Source/imgui_node_editor_api.cpp"
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"${IMGUI_NODE_EDITOR_DIR}/Source/imgui_node_editor.cpp"
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# Blueprint pin-icon widgets (Widgets/Drawing only — Builders.cpp is
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# intentionally excluded, it needs Spring()/BeginHorizontal()/BeginVertical()
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# from thedmd's own ImGui fork, which this project's vanilla ImGui lacks).
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"${IMGUI_NODE_EDITOR_BLUEPRINT_UTILITIES_DIR}/Source/ax/Drawing.cpp"
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"${IMGUI_NODE_EDITOR_BLUEPRINT_UTILITIES_DIR}/Source/ax/Widgets.cpp"
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)
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foreach(_src ${ImguiNodeEditor_SOURCES})
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if(NOT EXISTS "${_src}")
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set(ImguiNodeEditor_SOURCES_MISSING TRUE)
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endif()
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endforeach()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(ImguiNodeEditor
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REQUIRED_VARS ImguiNodeEditor_INCLUDE_DIR
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FAIL_MESSAGE "imgui-node-editor not found — expected it vendored at third_party/imgui-node-editor/NodeEditor"
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)
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if(ImguiNodeEditor_FOUND AND ImguiNodeEditor_SOURCES_MISSING)
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message(FATAL_ERROR "imgui-node-editor sources missing under ${IMGUI_NODE_EDITOR_DIR}/Source")
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endif()
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if(ImguiNodeEditor_FOUND AND NOT TARGET ImguiNodeEditor::ImguiNodeEditor)
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add_library(imgui_node_editor_impl STATIC ${ImguiNodeEditor_SOURCES})
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target_include_directories(imgui_node_editor_impl
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PUBLIC "${ImguiNodeEditor_INCLUDE_DIR}"
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"${IMGUI_NODE_EDITOR_BLUEPRINT_UTILITIES_DIR}/Include"
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PRIVATE "${IMGUI_NODE_EDITOR_DIR}/Source"
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"${IMGUI_NODE_EDITOR_BLUEPRINT_UTILITIES_DIR}/Source"
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)
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# Must be defined before the first #include <imgui.h> in every translation
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# unit (imgui_internal.h hard-errors otherwise) — a command-line define
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# guarantees that ordering regardless of vendored include order.
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target_compile_definitions(imgui_node_editor_impl PRIVATE IMGUI_DEFINE_MATH_OPERATORS)
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# Must share this project's own ImGui build (same headers/defines) rather
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# than pulling in a second ImGui — imgui-node-editor only needs the public
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# API plus ImRect/ImFloor from imgui_internal.h.
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target_link_libraries(imgui_node_editor_impl PUBLIC Imgui::Imgui)
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add_library(ImguiNodeEditor::ImguiNodeEditor ALIAS imgui_node_editor_impl)
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message(STATUS "imgui-node-editor found: ${ImguiNodeEditor_INCLUDE_DIR}")
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endif()
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mark_as_advanced(ImguiNodeEditor_INCLUDE_DIR)
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