Differenes between pixel shaders (mainly PS 1.0 - PS 1.4)

[Kaotik]

Is there a site or something, which would show the differences between different pixel shader versions?

Like specs, restrictions and possibly even some sample screenshots which would show differences or something like that?

 

[Ostsol]

MSDN is always good.

Pixel Shaders

 

[cthellis42]

Re: Differenes between pixel shaders (mainly PS 1.0 - PS 1.4

Differenes between pixel shaders (mainly PS 1.0 - PS 1.4)

And the answer is... PS 0.4!

 

[horvendile]

Re: Differenes between pixel shaders (mainly PS 1.0 - PS 1.4

Differenes between pixel shaders (mainly PS 1.0 - PS 1.4)

And the answer is... PS 0.4!

Shouldn't that be -0.4?

Seriously though, regarding PS 1.X I think that the main difference is the number of instructions you can have in a pass.

 

[horvendile]

Err...
found this:
http://www.beyond3d.com/misc/random/dx9shaderversions/index.php

Maybe not exactly what you were looking for, but a good start.

 

[RussSchultz]

Re: Differenes between pixel shaders (mainly PS 1.0 - PS 1.4

Differenes between pixel shaders (mainly PS 1.0 - PS 1.4)

And the answer is... PS 0.4!

Shouldn't that be -0.4?

Seriously though, regarding PS 1.X I think that the main difference is the number of instructions you can have in a pass.

I believe PS1.0 is lacking some fundamental features that 1.1 and up have.

 

[jpaana]

Re: Differenes between pixel shaders (mainly PS 1.0 - PS 1.4

Seriously though, regarding PS 1.X I think that the main difference is the number of instructions you can have in a pass.

Higher numeric range (-8 - +8), number of textures (6) plus much more general dependent texture lookups in 1.4.

1.1-1.3 are pretty similar, 1.3 adds possibility to assign depth, other than that it's a few rather useless instructions and register read port counts.

 

[ET]

The minimum shader version that any hardware supports is 1.1. 1.0 was in the DX8 docs, but it's gone from DX9.

 

[embargiel]

Wait, has anybody heard anything about programs, games, or whatever that use Pixel Shader 1.2?

 

[ZoinKs!]

It seems most have settled on using either ps 1.1 or jumping up to 1.4, 1.2 and 1.3 are pretty much skipped over.

 

[RussSchultz]

The minimum shader version that any hardware supports is 1.1. 1.0 was in the DX8 docs, but it's gone from DX9.

Alas, poor rampage. Never got to show your "stuff".

 

[ET]

Wait, has anybody heard anything about programs, games, or whatever that use Pixel Shader 1.2?

There's no PS 1.2 hardware that I know of. Games probably use 1.3, although most of these shaders could probably run on 1.2, too.

 

[Xmas]

There's no PS 1.2 hardware that I know of.

3Dlabs P9/P10 (PS1.3 is PS1.2 + texm3x2depth, which they don't support)