KillingFrenzy

I'm having trouble with both the alphaglue and rota shaders. Just installed the 1.63beta on XP and still have the same issues. I'm using a mobility 9800 on a Dell Inspiron 9100. There are some alternate versions of the shaders in question that have been posted. So, before I try and troubleshoot further, could someone please mail me any alternate/fix versions of the shaders at the following mail (minus the ?) 

Once I get the two shaders working, I'll be trying to roll my own version combining the two, so any insight into the peculiarities that would make the rota shader or the alphaglue shader finicky on this system or others would be good to know.

I'm having trouble with both the alphaglue and rota shaders. Just installed the 1.63beta on XP and still have the same issues.  I'm using a mobility 9800 on a Dell Inspiron 9100. There are some alternate versions of the shaders in question that have been posted.  So, before I try and troubleshoot further, could someone please mail me any alternate/fix versions of the shaders at the following mail (minus the ?)  
shader@?killingfrenzy.?com

Once I get the two shaders working, I'll be trying to roll my own version combining the two, so any insight into the peculiarities that would make the rota shader or the alphaglue shader finicky on this system or others would be good to know.


rota-and-alphaglue-shaders

What version of Jitter do you use? There have been a couple versions of 

the rota shader since we first started including it. The big hangup 

with this shader is the "boundmode" logic. If you don't need all the 

different boundmodes, the shader is actually pretty lightweight. You 

might search the forum archives, as there are a couple of alternate 

On the alphaglue shader, I think there may be a problem with the array 

notation that I use to select the alpha channel on some cards. If you 

don't need to switch which plane is used as alpha, the shader would look 

vec4 in1 = texture2DRect(tex0, texcoord0);

vec4 in2 = texture2DRect(tex1, texcoord1);

Note that all the luminance calculation and the smoothstep() function is 

unnecessary unless you need to apply a threshold to the alpha channel 

What version of Jitter do you use?  There have been a couple versions of 
the rota shader since we first started including it.  The big hangup 
with this shader is the "boundmode" logic.  If you don't need all the 
different boundmodes, the shader is actually pretty lightweight. You 
might search the forum archives, as there are a couple of alternate 
versions posted.

On the alphaglue shader, I think there may be a problem with the array 
notation that I use to select the alpha channel on some cards.  If you 
don't need to switch which plane is used as alpha, the shader would look 
something like this:

vec4 in1 = texture2DRect(tex0, texcoord0);
vec4 in2 = texture2DRect(tex1, texcoord1);

Note that all the luminance calculation and the smoothstep() function is 
unnecessary unless you need to apply a threshold to the alpha channel 
and/or use the lum2alpha capability.


Thanks for the advice on the alphaglue, I think I can run with that.

I'm now using Jitter 1.63b and the included rota.jxs

I've also tried the attachement on the forums that is listed as rota4.jxs

I think most of the forum postings don't retain proper formatting, so that's why I was hoping for an email of some of the previous rota variations, since I don't trust forum cut and paste at this point.

I'll try and search through and see if there is a posted rota2 or rota3 that maintain formatting.

I'm now using Jitter 1.63b and the included rota.jxs
I've also tried the attachement on the forums that is listed as rota4.jxs

I'll try and search through and see if there is a posted rota2 or rota3 that maintain formatting.


Well, in a fit of frustration I decided to ditch the "safe" recommended drivers supplied by Dell, which are about 2 years old, and apply the Omega drivers, which are a modified version of the ATI supplied Catalyst drivers which actually work on my Mobility Radeon 9800.

So, I wouldn't normally recommend non-standard drivers... but, if the standard drivers are going to be so pathetically out of date, I suppose this is a case where it becomes necessary.

Applying latest "Omega" drivers will enable proper shader behavior on a Mobility Radeon 9800 under Win/XP on a Dell Inspiron 9100 Laptop.

Well, in a fit of frustration I decided to ditch the "safe" recommended drivers supplied by Dell, which are about 2 years old, and apply the Omega drivers, which are a modified version of the ATI supplied Catalyst drivers which actually work on my Mobility Radeon 9800.
Now all the various shaders work.
So, I wouldn't normally recommend non-standard drivers... but, if the standard drivers are going to be so pathetically out of date, I suppose this is a case where it becomes necessary.

Summation
Applying latest "Omega" drivers will enable proper shader behavior on a Mobility Radeon 9800 under Win/XP on a Dell Inspiron 9100 Laptop.


On Jan 11, 2007, at 2:51 AM, Leo Mayberry wrote:

> Well, in a fit of frustration I decided to ditch the "safe" 

> recommended drivers supplied by Dell, which are about 2 years old, 

> and apply the Omega drivers, which are a modified version of the 

> ATI supplied Catalyst drivers which actually work on my Mobility 

> So, I wouldn't normally recommend non-standard drivers... but, if 

> the standard drivers are going to be so pathetically out of date, I 

> suppose this is a case where it becomes necessary.

Yes, laptop manufacturer supplied drivers are unfortunately often 

outdated or problematic with no hope of the vendor updating them. 

It's actually pretty embarrassing for the HW vendors that things like 

Omega drivers are often required for people to effectively use the 

hardware they paid for, with the current software drivers they are 

not allowed access to. Now, some of the Graphics card manufacturers 

are becoming more liberal about providing driver updates for laptop 

graphics cards, but it's mostly for the newer machines, and even then 

I hate recommending these unoffical drivers too, but I suppose I hate 

the restrictive driver policies of these vendors even more.

>
> Well, in a fit of frustration I decided to ditch the "safe"  
> recommended drivers supplied by Dell, which are about 2 years old,  
> and apply the Omega drivers, which are a modified version of the  
> ATI supplied Catalyst drivers which actually work on my Mobility  
> Radeon 9800.
> Now all the various shaders work.
> So, I wouldn't normally recommend non-standard drivers... but, if  
> the standard drivers are going to be so pathetically out of date, I  
> suppose this is a case where it becomes necessary.

Yes, laptop manufacturer supplied drivers are unfortunately often  
outdated or problematic with no hope of the vendor updating them.  
It's actually pretty embarrassing for the HW vendors that things like  
Omega drivers are often required for people to effectively use the  
hardware they paid for, with the current software drivers they are  
not allowed access to. Now, some of the Graphics card manufacturers  
are becoming more liberal about providing driver updates for laptop  
graphics cards, but it's mostly for the newer machines, and even then  
not for all vendors.

I hate recommending these unoffical drivers too, but I suppose I hate  
the restrictive driver policies of these vendors even more.

rota and alphaglue shaders