Re: [CsMain] Advice for a GSoC idea

On 28.03.2011 11:36, Antony Martin wrote:
> How do I run the demo using another test scene? I only found it in the "startme" 
> executable so far. Is it possible to switch to forward rendering inside the demo?

IIRC you could specify different paths to world on deferreddemo's
command line; check it's command line help.

> I must say that parsing is not my strengh. I wonder that a basic setup of GLSL 
> shaders and VP/FP unification would only require some XML parser calls to 
> recognize some GLSL-specific tags/whatever?

Roughly, yes.

For some general information on how CS shaders are made up:
http://www.crystalspace3d.org/docs/YoFrankieTutorials/crystal_space_development/shaders_intro/shaders_intro.html
- that also includes some sample XML.
And by seeing the “old” syntax you may already be able to guess how a
syntax for the “unified” system would look.

The actual XML parsing is already abstracted - i.e. you access XML nodes
with statements such as ‘GetNode ("vp")’.

> Also, do you support tess/geom shaders in Cg? If I add them in GLSL then maybe I 
> should add them in Cg too to be consistent.

No, those shaders aren't supported in Cg.
However, I would consider support in Cg to be very low priority.

-f.r.

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