[following up on myself...]
Hello Victor,
On 06/06/2014 10:41 AM, Carsten Neumann wrote:
>> Does it look right? The part I commented made the whole viewport black,
>> I don't know why..
>
> sorry about the mixup earlier regarding the use of ShadowStage vs.
> ShadowEngine.
> Viewports are supposed to allow the user to specify the size either in
> pixels or relative coordinates (values > 1 are considered pixels, values
> in [0,1] are relative) - that's the reason for the lines you commented,
> the code wants to use pixels.
> However, by the time the ShadowEngine is reached, the viewport
> coordinates should have been normalized, which oddly is not happening in
> your case on the render servers. I believe that is the real problem here
> and will see if I find where things go wrong. Thanks for tracking things
> down to viewport sizes being off!
so it turns out this is actually much simpler: The SimpleShadowMapEngine
used the viewport settings from the application ([1]) to select the
viewport for rendering the shadow map. Instead it should just render to
all of the shadow map - after all in general the application viewport
size and the shadow map size have no relationship and can be arbitrarily
sized. I've committed the fix that makes the SSME work with
testClusterClient/Server for me.
Cheers,
Carsten
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