Initial commit: ROW Client source code

Game client codebase including:
- CharacterActionControl: Character and creature management
- GlobalScript: Network, items, skills, quests, utilities
- RYLClient: Main client application with GUI and event handlers
- Engine: 3D rendering engine (RYLGL)
- MemoryManager: Custom memory allocation
- Library: Third-party dependencies (DirectX, boost, etc.)
- Tools: Development utilities

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Library/dxx8/samples/Multimedia/Direct3D/StencilBuffer/ShadowVolume/readme.txt

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+//-----------------------------------------------------------------------------
+// Name: ShadowVolume Direct3D Sample
+// 
+// Copyright (c) 1998-2001 Microsoft Corporation. All rights reserved.
+//-----------------------------------------------------------------------------
+
+
+Description
+===========
+   The ShadowVolume sample uses stencil buffers to implement real-time shadows.
+   In the sample, a complex object is rendered and used as a shadow-caster, to
+   cast real-time shadows on itself and on the terrain below.
+
+   Stencil buffers are a depth buffer technique that can be updated as
+   geometry is rendered, and used again as a mask for drawing more geometry.
+   Common effects include mirrors, shadows (an advanced technique), dissolves,
+   etc..
+
+   Note that not all cards support all features for all the various stencil
+   buffer techniques (some hardware has no, or limited, stencil buffer
+   support). For more information on stencil buffers, refer to the DirectX SDK
+   documentation. 
+
+
+Path
+====
+   Source:     DXSDK\Samples\Multimedia\D3D\StencilBuffer\ShadowVolume
+   Executable: DXSDK\Samples\Multimedia\D3D\Bin
+
+
+User's Guide
+============
+   The following keys are implemented. The dropdown menus can be used for the
+   same controls.
+      <Enter>     Starts and stops the scene
+      <Space>     Advances the scene by a small increment
+      <F1>        Shows help or available commands.
+      <F2>        Prompts user to select a new rendering device or display mode
+      <Alt+Enter> Toggles between fullscreen and windowed modes
+      <Esc>       Exits the app.
+
+
+Programming Notes
+=================
+   Real-time shadows is a fairly advanced technique. Each frame, or as the
+   geometry or lights in the scene are moves, an object called a shadow volume
+   is computed. A shadow volume is an actual 3D object which is the siholuette
+   of the shadowcasting object, as pretruded away from the light source.
+
+   In this sample, the 3D object which casts shadows is a bi-plane. Each frame,
+   the sihlouette of the plane is computed (using an edge detection algorithm,
+   in which sihlouette edges are found because the normals of adjacent polygons
+   will have opposing normals with respect to the light vector). The resulting
+   edge list (the sihlouette) is pretuded into a 3D object away from the light
+   source. This 3D object is known as the shadow volume, as everypoint inside
+   the volume is inside a shadow.
+
+   Next, the shadow volume is rendering into the stencil buffer twice. First,
+   only forward-facing polygons are rendering, and the stencil buffer values 
+   are incremented each time. Then the back-facing polygons of the shadow
+   volume are drawm, decrementing values in the stencil buffer. Normally, all
+   incremented and decremented values would cancel each other out. However,
+   because the scene was already rendered with normal geometry (the plane and
+   the terrain, in this case), some pixels will fail the zbuffer test as the 
+   shadowvolume is rendered. Any values left in the stencil buffer correspond
+   to pixels that are in the shadow.
+
+   Finally, these remaining stencil buffer contents are used as a mask, as a
+   large all-encompassing black quad is alpha-blended into the scene. With the
+   stencil buffer as a mask, only pixels in shadow are darkened
+
+   This sample makes use of common DirectX code (consisting of helper functions,
+   etc.) that is shared with other samples on the DirectX SDK. All common
+   headers and source code can be found in the following directory:
+      DXSDK\Samples\Multimedia\Common