Jump to content
  • Advertisement
Sign in to follow this  
MohammadAhmed

high dynamic range rendering

This topic is 2077 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

hello , I am design game using XNA , I work on apply HDR rendering for my images , but the problem is I don't understand well the 

The LogLuv Encoding for Full Gamut  !! I take alot of math courses , but still bit confused ! so any prerequisite books for this title so that I can understand HDR for games !! 

I took digital image processing course :)

Share this post


Link to post
Share on other sites
Advertisement

LogLuv encoding was popular many years ago, when support for floating-point textures on GPUs was rare and/or slow.

 

These days, it's better to not bother with fancy encodings like that, and instead just use a floating-point texture format, such as HalfVector4 (a.k.a. D3DFMT_A16B16G16R16F).

Share this post


Link to post
Share on other sites

[quote name='jeffkingdev' timestamp='1358523771' post='5022914']
Do most video cards these days support the floating point textures? Do the onboard cards do this now too?[/quote]

Even those god-awful Intel integrated chipsets have had floating point textures for a couple of generations now.

Share this post


Link to post
Share on other sites

As you're working with XNA, it's advisable to use the HdrBlendable surface format. It's a floating point format specifically made for HDR use, which uses 4 Half Vectors for GPUs on the PC. Just keep in mind its limitations, like not being able to use a linear texture filter for it.

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!