egutierrez
88fca7b128
feat(shaders_lab): visual node editor (imgui-node-editor) + multi-source
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- cpp/vendor/imgui-node-editor: vendorized thedmd/imgui-node-editor v0.9.4
- cpp/functions/gfx/dag_node_editor: new visual pipeline editor replacing dag_panel
- DagStep: source_ids[4] + editor_pos + editor_uid (multi-input support)
- DagNodeDef: num_inputs explicit; circle reclassified as Op
- dag_compile: N inputs per node, topological ordering preserved
- main: use node editor; destroy on shutdown
- patch imgui_extra_math.inl: guard operator*(float, ImVec2) for imgui >= 18955
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com >
2026-04-24 21:56:48 +02:00
egutierrez
2bb49e31c0
feat(shaders_lab): drag-and-drop to reorder DAG steps
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ImGui native BeginDragDropSource/Target over each CollapsingHeader.
Drag source adjusted if ahead of target to keep final position correct.
Move Up/Down buttons kept for keyboard/touchpad fallback.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com >
2026-04-24 21:21:58 +02:00
egutierrez
5d83c11169
feat(shaders_lab): DAG pipeline mode with node catalog
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- cpp/functions/gfx/dag_types: DagStep, DagNodeDef, DagControl (header-only)
- cpp/functions/gfx/dag_catalog: 10 hardcoded nodes (4 gen, 3 op, 3 blend) ported from shader-dag-blends.jsx
- cpp/functions/gfx/dag_compile: pipeline → GLSL 330 core with fan-in via source_id
- cpp/functions/gfx/dag_uniforms: upload u_params[16] via glUniform4fv
- cpp/functions/gfx/dag_panel: ImGui pipeline editor (add/remove/reorder/controls)
- main.cpp: Code/DAG mode toggle, per-mode compile path and uniforms
- gl_loader: +glUniform4fv
- rebuild Windows .exe
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com >
2026-04-24 21:15:21 +02:00
egutierrez
c7821c4c99
feat(shaders_lab): uniform annotations → auto-generated ImGui controls
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- cpp/functions/gfx/uniform_parser: regex-based parser of @slider/@color/@toggle/@xy annotations (+ inline tests)
- cpp/functions/gfx/uniform_panel: ImGui widgets + value store + glUniform* apply
- shader_canvas: optional uniforms callback invoked per-frame
- gl_loader: +glUniform1i/3f/4f
- seed plasma: demo uniforms u_speed + u_color
- rebuild Windows .exe
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com >
2026-04-24 21:02:35 +02:00
egutierrez
4a95407d0e
feat(shaders_lab): add gl_loader + Windows cross-compile
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- cpp/functions/gfx/gl_loader.{h,cpp,md}: mini loader para OpenGL 2.0+
(Linux no-op via GL_GLEXT_PROTOTYPES, Windows wglGetProcAddress)
- Portar gl_shader/gl_framebuffer/fullscreen_quad/shader_canvas al loader
- CMakeLists: WIN32_EXECUTABLE para lanzar sin consola en Windows
- apps/shaders_lab/shaders_lab.exe: binario PE32+ precompilado
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com >
2026-04-24 20:52:37 +02:00
egutierrez
042bb43b37
feat(shaders_lab): scaffold C++ app with GLSL live-reload canvas
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- cpp/functions/gfx: gl_shader, gl_framebuffer, fullscreen_quad, shader_canvas
- cpp/apps/shaders_lab: main + 3 seed shaders (plasma, circle, checker)
- ImGui docking layout: Code | Canvas | Controls
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com >
2026-04-24 20:33:36 +02:00
egutierrez