Editing Multimedia Formats and Tools

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**https://games.slashdot.org/story/04/07/30/1837253/sony-endorsing-open-graphics-format-for-ps3
**https://games.slashdot.org/story/04/07/30/1837253/sony-endorsing-open-graphics-format-for-ps3


==FPO and VPO==
==FPO==
*FPO ('''F'''ragment '''P'''rogram '''O'''bjects)
*VPO ('''V'''ertex '''P'''rogram '''O'''bjects)
*Used inside:
**[[Qt Resource Container (QRC)|QRC containers]]
**[[PS2 Emulation|ps2_netemu.self]]


This files are [https://en.wikipedia.org/wiki/Cg_(programming_language) Cg shaders] created by the Cg compiler ('''sce-cgc.exe'''), and are compatible with the Cg disassembler ('''sce-cgcdisasm.exe''') from [[SCEI PS3 SDK]]
==VPO==
 
See: [http://games.soc.napier.ac.uk/resources/ps3/ps3_tutorial_004.pdf Introduction to GCM and PS3 graphics] (pages 4 and 5), and [https://arxiv.org/ftp/cs/papers/0302/0302013.pdf Cg in Two Pages]
 
*The compiler acepts 2 arguments:
**'''-p''': For the PS3 RSX is needed to use the profiles: '''sce_fp_rsx''' (to compile a fragment shader and create a FPO file), or '''sce_vp_rsx''' (to compile a vertex shader and create a VPO file)
**'''-o''': the output filename
 
{{keyboard|content=<syntaxhighlight lang="bash">C:\usr\local\cell\host-win32\Cg\bin\sce-cgc.exe -p sce_fp_rsx -o OUTPUT.FPO input_fshader.cg</syntaxhighlight>}}
{{Boxcode|title=input_fshader.cg|float=left|width=auto|code=<syntaxhighlight lang="c">
void main
(
float4 color_in : COLOR,
out float4 color_out : COLOR
)
{
color_out = color_in;
}
</syntaxhighlight>}}
 
{{keyboard|content=<syntaxhighlight lang="bash">C:\usr\local\cell\host-win32\Cg\bin\sce-cgc.exe -p sce_vp_rsx -o OUTPUT.VPO input_vshader.cg</syntaxhighlight>}}
{{Boxcode|title=input_vshader.cg|float=left|width=auto|code=<syntaxhighlight lang="c">
void main
(
float4 position : POSITION,
float4 color : COLOR,
 
uniform float4x4 modelViewProj,
 
out float4 oPosition : POSITION,
out float4 oColor : COLOR
)
{
oPosition = position;
oColor = color;
}
</syntaxhighlight>}}
{{clear}}
 
*Notes/speculation
**The PS3 RSX Cg profiles ('''sce_fp_rsx''' & '''sce_vp_rsx''') probably are custom, but based in the [https://developer.nvidia.com/cg-profiles standard profiles]
**[http://www.psx-place.com/threads/my-vertex-shader-document.20794/ Open Source code related with PS3 Cg shaders]


==MNU==
==MNU==
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