Horde3D

Next-Generation Graphics Engine
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swiftcoder
 Post subject: Re: New LOD system
PostPosted: 19.02.2009, 03:18 
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Joined: 22.11.2007, 17:05
Posts: 707
Location: Boston, MA
DarkAngel wrote:
swiftcoder wrote:
I don't really see any technical barrier, but this is well outside the scope of Horde - perhaps better left to a dedicated solution, such as Giles (which supports radiosity, etc.)
Giles looks a lot more advanced than what I was thinking about. I was really only asking about uploading texture data between the application and Horde (which is already supported), but for depth-textures.
Does that really have an application, beyond light/shadow-mapping?

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Tristam MacDonald - [swiftcoding]
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DarkAngel
 Post subject: Re: New LOD system
PostPosted: 19.02.2009, 05:31 
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Joined: 08.11.2006, 03:10
Posts: 384
Location: Australia
swiftcoder wrote:
DarkAngel wrote:
swiftcoder wrote:
I don't really see any technical barrier, but this is well outside the scope of Horde - perhaps better left to a dedicated solution, such as Giles (which supports radiosity, etc.)
Giles looks a lot more advanced than what I was thinking about. I was really only asking about uploading texture data between the application and Horde (which is already supported), but for depth-textures.
Does that really have an application, beyond light/shadow-mapping?
Yes depth textures have applications beyond shadow-mapping... but I don't think that's what you're trying to get at, is it?
What objections do you have against allowing non-RGBA data to be uploaded?

If I used a 3rd-party tool to precompute some shadow-maps for a scene like you suggested, wouldn't I still need Horde to support a depth-texture upload?
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swiftcoder
 Post subject: Re: New LOD system
PostPosted: 19.02.2009, 13:47 
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Joined: 22.11.2007, 17:05
Posts: 707
Location: Boston, MA
DarkAngel wrote:
swiftcoder wrote:
Does that really have an application, beyond light/shadow-mapping?
Yes depth textures have applications beyond shadow-mapping... but I don't think that's what you're trying to get at, is it?
What objections do you have against allowing non-RGBA data to be uploaded?
Upload, no problem, but don't you need download as well for your idea? Texture download is a sticky problem altogether, even with FBO/PBO, and adding it to the API is going to encourage people (particularly beginners) to use it.

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DarkAngel
 Post subject: Re: New LOD system
PostPosted: 20.02.2009, 02:45 
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Joined: 08.11.2006, 03:10
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swiftcoder wrote:
Upload, no problem, but don't you need download as well for your idea? Texture download is a sticky problem altogether, even with FBO/PBO, and adding it to the API is going to encourage people (particularly beginners) to use it.
Yeah texture downloads shouldn't often be used inside the main game-loop, but I would love to be able to use Horde in my tool-chain as well as in my real-time-renderer.

I haven't used the Horde function getPipelineRenderTargetData, but it might already give my tools the ability to download the data I want from Horde...
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