added simple demoreel and ps2 skeleton coded by claude fable 5

tools/demoreel/demoreel.h

@@ -0,0 +1,39 @@
+#ifndef DEMOREEL_H
+#define DEMOREEL_H
+
+#include <rw.h>
+#include <skeleton.h>
+
+// A demo scene. Plain function pointers and static data only;
+// scene code is meant to stay compilable for PS2 (old gcc, no STL).
+struct DemoScene
+{
+	const char *name;
+	void (*init)(void);
+	void (*term)(void);
+	void (*update)(float dt);
+	void (*render)(void);
+};
+
+struct SceneGlobals
+{
+	rw::World *world;
+	rw::Camera *camera;
+};
+extern SceneGlobals Scene;
+extern float DemoTime;	// seconds since scene start
+
+// main.cpp
+void LookAt(rw::Frame *frame, rw::V3d pos, rw::V3d target);
+rw::RGBA HSV(float h, float s, float v, rw::uint8 alpha);
+
+// proctex.cpp
+rw::Texture *MakeGlowTexture(void);
+rw::Texture *MakeGridTexture(void);
+rw::Texture *MakeEnvTexture(void);
+
+extern DemoScene TunnelScene;
+extern DemoScene ParticleScene;
+extern DemoScene KnotScene;
+
+#endif