Fry3DX 0.4: an easy 3D modeller

Shapes with live settings, shape editing, knife and hole tools, drawing
shapes onto other objects, combining objects (add / subtract / overlap),
copies, thickness, painting with stickers and layers, a Layout tab, a
Print tab with checks, packed .fry files with autosave, export to GLB,
glTF, FBX, OBJ, 3MF, STL and PLY, folders in Layers, its own crash
screen, and a website for GitHub Pages in docs/.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NMSrd5oe1GpUD7E6d825KP

engine/rhi/gl/gl_loader.cpp

@@ -0,0 +1,21 @@
+#include "rhi/gl/gl_loader.h"
+#include "core/log.h"
+
+#include <SDL3/SDL_video.h>
+
+#include <string>
+
+namespace keel::gl {
+
+bool load() {
+    std::string missing;
+#define KEEL_GL_LOAD(ret, name, params)                                                       \
+    name = reinterpret_cast<name##_t>(SDL_GL_GetProcAddress("gl" #name));                     \
+    if (!name) missing += " gl" #name;
+    KEEL_GL_FUNCTIONS(KEEL_GL_LOAD)
+#undef KEEL_GL_LOAD
+    if (!missing.empty()) log::warn("OpenGL: missing functions:{}", missing);
+    return missing.empty();
+}
+
+} // namespace keel::gl