Upload files to "src"

src/OrbitManipulator.cpp

@@ -0,0 +1,35 @@
+#include "OrbitManipulator.h"
+#include <osgGA/GUIEventAdapter>
+
+OrbitManipulator::OrbitManipulator() {
+    setAllowThrow(false);
+    setMinimumDistance(0.05);
+}
+
+void OrbitManipulator::setDefaultHumanoidView() {
+    // PMX models are Y-up and face -Z (into the screen in their local space).
+    // Place the camera along -Z looking toward +Z, so we see the model's face.
+    //
+    //   eye    = (0, 1.5, -3)  -- 3 units in front of the model (-Z side)
+    //   centre = (0, 1.0,  0)  -- orbit target at chest height
+    //   up     = (0, 1.0,  0)  -- Y-up, no roll
+    setHomePosition(
+        osg::Vec3d(0.0,  1.5, -3.0),
+        osg::Vec3d(0.0,  1.0,  0.0),
+        osg::Vec3d(0.0,  1.0,  0.0)
+    );
+    home(0.0);
+}
+
+bool OrbitManipulator::handleKeyDown(const osgGA::GUIEventAdapter& ea,
+                                      osgGA::GUIActionAdapter&      aa) {
+    switch (ea.getKey()) {
+        case 'r':
+        case 'R':
+            setDefaultHumanoidView();
+            return true;
+        default:
+            break;
+    }
+    return osgGA::OrbitManipulator::handleKeyDown(ea, aa);
+}

src/SceneBuilder.cpp

@@ -0,0 +1,119 @@
+#include "SceneBuilder.h"
+
+#include <osg/Geometry>
+#include <osg/LineWidth>
+#include <osg/Material>
+#include <osg/Light>
+#include <osg/StateSet>
+
+// ─────────────────────────────────────────────────────────────────────────────
+
+osg::ref_ptr<osg::Geode> SceneBuilder::createGrid(float halfSize, int divisions) {
+    auto geode = new osg::Geode;
+    auto geom  = new osg::Geometry;
+
+    auto verts = new osg::Vec3Array;
+    auto cols  = new osg::Vec4Array;
+
+    const float step = (halfSize * 2.f) / static_cast<float>(divisions);
+
+    // Grid lines parallel to X axis
+    for (int i = 0; i <= divisions; ++i) {
+        float z = -halfSize + i * step;
+        verts->push_back({ -halfSize, 0.f, z });
+        verts->push_back({  halfSize, 0.f, z });
+    }
+    // Grid lines parallel to Z axis
+    for (int i = 0; i <= divisions; ++i) {
+        float x = -halfSize + i * step;
+        verts->push_back({ x, 0.f, -halfSize });
+        verts->push_back({ x, 0.f,  halfSize });
+    }
+
+    // Uniform grey colour
+    cols->push_back({ 0.45f, 0.45f, 0.45f, 1.f });
+
+    geom->setVertexArray(verts);
+    geom->setColorArray(cols, osg::Array::BIND_OVERALL);
+    geom->addPrimitiveSet(
+        new osg::DrawArrays(osg::PrimitiveSet::LINES, 0,
+                            static_cast<int>(verts->size())));
+
+    // Thin lines, no lighting
+    osg::StateSet* ss = geom->getOrCreateStateSet();
+    ss->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
+    ss->setAttribute(new osg::LineWidth(1.f));
+
+    geode->addDrawable(geom);
+    geode->setName("Grid");
+    return geode;
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+
+osg::ref_ptr<osg::Geode> SceneBuilder::createAxes(float length) {
+    auto geode = new osg::Geode;
+    auto geom  = new osg::Geometry;
+
+    auto verts = new osg::Vec3Array;
+    auto cols  = new osg::Vec4Array;
+
+    // X – red
+    verts->push_back({ 0.f,    0.f,    0.f    }); cols->push_back({1,0,0,1});
+    verts->push_back({ length, 0.f,    0.f    }); cols->push_back({1,0,0,1});
+    // Y – green
+    verts->push_back({ 0.f,    0.f,    0.f    }); cols->push_back({0,1,0,1});
+    verts->push_back({ 0.f,    length, 0.f    }); cols->push_back({0,1,0,1});
+    // Z – blue
+    verts->push_back({ 0.f,    0.f,    0.f    }); cols->push_back({0,0,1,1});
+    verts->push_back({ 0.f,    0.f,    length }); cols->push_back({0,0,1,1});
+
+    geom->setVertexArray(verts);
+    geom->setColorArray(cols, osg::Array::BIND_PER_VERTEX);
+    geom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::LINES, 0, 6));
+
+    osg::StateSet* ss = geom->getOrCreateStateSet();
+    ss->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
+    ss->setAttribute(new osg::LineWidth(2.f));
+
+    geode->addDrawable(geom);
+    geode->setName("Axes");
+    return geode;
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+
+osg::ref_ptr<osg::LightSource> SceneBuilder::createSunLight(int lightNum) {
+    auto light = new osg::Light;
+    light->setLightNum(lightNum);
+
+    // Warm directional light from upper-right front
+    light->setPosition({ 5.f, 10.f, 5.f, 0.f });   // w=0 → directional
+    light->setDiffuse({ 1.0f, 0.95f, 0.85f, 1.f });
+    light->setSpecular({ 1.0f, 1.0f,  0.9f, 1.f });
+    light->setAmbient({ 0.0f, 0.0f,  0.0f, 1.f });
+
+    auto src = new osg::LightSource;
+    src->setLight(light);
+    src->setLocalStateSetModes(osg::StateAttribute::ON);
+    src->setName("SunLight");
+    return src;
+}
+
+// ─────────────────────────────────────────────────────────────────────────────
+
+osg::ref_ptr<osg::LightSource> SceneBuilder::createAmbientLight(int lightNum) {
+    auto light = new osg::Light;
+    light->setLightNum(lightNum);
+
+    light->setPosition({ 0.f, 0.f, 0.f, 1.f });    // positional (ignored for ambient)
+    light->setDiffuse({ 0.0f, 0.0f, 0.0f, 1.f });
+    light->setSpecular({ 0.0f, 0.0f, 0.0f, 1.f });
+    light->setAmbient({ 0.25f, 0.25f, 0.3f, 1.f }); // cool blue ambient fill
+
+    auto src = new osg::LightSource;
+    src->setLight(light);
+    src->setLocalStateSetModes(osg::StateAttribute::ON);
+    src->setName("AmbientLight");
+    return src;
+}