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	DX9 Real-Time High-Dynamic Range Image-Based Lighting
				Version 1.0

	2003.03
	Masa (Masaki Kawase)
	E-Mail: masa@daionet.gr.jp
	URL   : http://www.daionet.gr.jp/~masa

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- Contents

  - What is rthdribl
  - System Requirements
  - References
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- What is rthdribl

  Rthdribl is a "High Dynamic Range Image-Based Lighting" demo.
  Technical features of the demo are:
   - True HDR (High-Dynamic Range) Rendering
   - IBL (Image-Based Lighting)
   - Glare Generation (Afterimage/Bloom/Ghost/Star)
   - Automatic Exposure Adjustment
   - Iris shaped Depth of Field blur
   - Realistic Motion Blur
   - FSAA (Full-Scene Anti-Alias)
   - Fresnel Effect (Specular Reflectance)
  etc.

  Glare, Motion Blur, Fresnel Reflection and Depth of Field effects
  work properly by rendering with HDR.


- System Requirements

  - Intel(R) 80x86-compatible CPU
  - Microsoft(R) Windows(R) 98, ME, 2000, or XP
  - DirectX(R) 9.0 or later
  - A video card that supports Vertex Shader 2.0 and Pixel Shader 2.0

  Additionary, D3DFMT_A16B16G16R16F and D3DFMT_A16B16G16R16 texture
  formats that can be rendered are highly recommended. 

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- References

  Debevec, Paul E. "Rendering with Natural Light", In SIGGRAPH 98
  Electronic Theater, 1998. http://www.debevec.org/RNL/ 

  Debevec, Paul E. "Fiat Lux", In SIGGRAPH 99 Electronic Theater, 1999.
  http://www.debevec.org/FiatLux/ 

  Light Probe Images courtesy of Paul Debevec,
  http://www.debevec.org/Probes, used with permission., 1997. 

  Mitchell, Jason L. "High Level Shading with DirectX9 on ATI's RADEON
  9700 Series", In NetSeminar, December 11, 2002. 
  http://www.netseminar.com/index.cgi?sem_num=793 

  "The RADIANCE Picture File Format",
  http://radsite.lbl.gov/radiance/refer/Notes/picture_format.html 
