Hi Gerrit,
Gerrit Voss wrote:
> On Mon, 2007-03-26 at 17:03 +0200, Carsten Neumann wrote:
>> the "features to port" page mentions <subject> and I'd like to work on
>> it (this is something new for me, which might explain some of the
>> following questions).
>> - First, is somebody already working on this ?
>
> kind of, more one level below ;-), I'm currently working on general
> stage handling things like stage data storage, execution control, and
> partition reordering. So I would like to finish this one first because
> it will change the way the Lightengines should work.
sure, I'll find something else to do until you are done :)
>> - It seems to do three passes, with the functions doLightPass,
>> doAmbientPass, doFinalPass. Can I have a one sentence description of
>> what these functions do, please? (something like: doLightPass computes
>> the depth image of the scene as seen from the light source -- it
>> probably does not since it seems to run last, but this is quite
>> confusing as doFinalPass seems to run first ?? ).
>
> -lightPass : render the depthmap
> -ambientPass : render the scene with the shadow color
> -finalPass : render the scene with the lights enabled.
>
> The 'run first' part is one thing that is going to change (become more
> flexible). Currently partitions are executed in the reverse order they
> are created during traversal. Which is ok if a stage creates a single
> partition but results in the strange setup order you find for the shadow
> engine where the partition to run last has to be created first. But this
> is something I already changed in my tree so you can group partition and
> create them in the logical correct way (lightPass, ambientPass,
> finalPass) instead of the reverse way.
Ah, ok. Thinking about it, the partition stack could have given me a
hint about the order being reversed ;)
Are these changes accessible already (if via git I'd appreciate a hint
about how to do a pull of the relevant parts) ?
Thanks,
Carsten
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