[Radiance-general] Re: rholo?

[Randolph Fritz]

On Wednesday, May 14, 2003, at 10:05  PM, Greg Ward wrote:

>> From: Randolph Fritz <randolph@panix.com>
>>
>> On Tuesday, May 13, 2003, at 03:02  PM, Rob Guglielmetti wrote:
>>
>>>
>>>> If I do this at all, I will do as much pre-rendering as I can on 
>>>> the fastest system I can fine (which isn't my Mac.)  Is there a 
>>>> sample .hdk file I can download for testing display?
>>>
>>> Have a look in ray/obj/cabin, there are a couple of samples using 
>>> the cabin model.  There are makefiles for a day and night scene, 
>>> running 'make nholo' at the command line will start an interactive 
>>> process of the nighttime scene for example.
>>
>> I tried it; performance is quite respectable on the fast Pentium 4 in 
>> the Baker Lighting Lab.  Navigation, however, is difficult enough 
>> that I think I won't be using it for this project; I don't want to 
>> try to teach people how to use it under fire.  (I don't think I want 
>> to learn how for this project, either!)  Maybe next time...
>
> It takes a bit of getting used to, no question.  If you have a fast 
> OpenGL implementation, you'll suffer from a bug in the official 3.5 
> version that causes rotation to spin wildly, which is fixed on top of 
> trunk.  (I thought it was fixed in the 3.5 release, but I missed a 
> zero on the delay time I added between refreshes.)  Once you're used 
> to it, though, you'll find rview painful by comparison.

Thanks--I'll give it another try, then, but I'm not going to hand the 
mouse to a reviewer; they'd just go bonkers.  To my frustration, this 
whole issue of presentation of computer models turns out to be terribly 
difficult.  I think rholo is a good part of the answer; a 
constraint-based navigator built around some computer game controls--to 
keep one from flying through walls and getting lost in space--would 
probably satisfy the need.

>
>>
>> By the way, what is the difference between the glx and ogl drivers?
>
> The glx1 driver is an older version of the ogl driver, [...]

oh, I see.  Thanks.

Randolph