<Luigi>
unregistried
|  Created on 08.11.2004 - 11:51 |      |
I have ported the "Emboss Shader" from ShadX (page 1 of this thread) to ARBvp/ARBfp (this time without errors, I hope ) whit a little modification for color glitch reduction. Tested on NV 6800:
!!ARBvp1.0
OPTION ARB_position_invariant;
# program.env[1].x/y will give the plugin's "effect level" offset
PARAM filterOffset = program.env[1];
ATTRIB sample = vertex.texcoord[ 0 ];
# gl_TexCoord[0] = gl_MultiTexCoord0; //center
# gl_TexCoord[1] = gl_TexCoord[0] - offsetx ; //left
# gl_TexCoord[2] = gl_TexCoord[0] - offsetx - offsety; //top-left
# gl_TexCoord[3] = gl_TexCoord[0] - offsety ; //top
# gl_TexCoord[4] = gl_TexCoord[0] + offsetx ; //right
# gl_TexCoord[5] = gl_TexCoord[0] + offsetx + offsety; //bottom-right
# gl_TexCoord[6] = gl_TexCoord[0] + offsety ; //bottom
MOV result.texcoord[ 0 ].x, sample.x;
MOV result.texcoord[ 0 ].y, sample.y;
ADD result.texcoord[ 1 ].x, sample.x, -filterOffset.x;
MOV result.texcoord[ 1 ].y, sample.y;
ADD result.texcoord[ 2 ].x, sample.x, -filterOffset.x;
ADD result.texcoord[ 2 ].y, sample.y, -filterOffset.y;
MOV result.texcoord[ 3 ].x, sample.x;
ADD result.texcoord[ 3 ].y, sample.y, -filterOffset.y;
ADD result.texcoord[ 4 ].x, sample.x, filterOffset.x;
MOV result.texcoord[ 4 ].y, sample.y;
ADD result.texcoord[ 5 ].x, sample.x, filterOffset.x;
ADD result.texcoord[ 5 ].y, sample.y, filterOffset.y;
MOV result.texcoord[ 6 ].x, sample.x;
ADD result.texcoord[ 6 ].y, sample.y, filterOffset.y;
END
!!ARBfp1.0
TEMP color0, color1, color2, color3, color4, color5, color6;
PARAM toGray = { 0.3, 0.59, 0.11, 0.0 };
PARAM divtwo = { 0.5, 0.5, 0.5, 0.0 };
# c = texture2DProj(OGL2Texture, gl_TexCoord[0]); //center
# l = texture2DProj(OGL2Texture, gl_TexCoord[1]); //left
# tl = texture2DProj(OGL2Texture, gl_TexCoord[2]); //top-left
# t = texture2DProj(OGL2Texture, gl_TexCoord[3]); //top
# r = texture2DProj(OGL2Texture, gl_TexCoord[4]); //right
# br = texture2DProj(OGL2Texture, gl_TexCoord[5]); //bottom-right
# b = texture2DProj(OGL2Texture, gl_TexCoord[6]); //bottom
TEX color0, fragment.texcoord[ 0 ], texture[ 0 ], 2D;
TEX color1, fragment.texcoord[ 1 ], texture[ 0 ], 2D;
TEX color2, fragment.texcoord[ 2 ], texture[ 0 ], 2D;
TEX color3, fragment.texcoord[ 3 ], texture[ 0 ], 2D;
TEX color4, fragment.texcoord[ 4 ], texture[ 0 ], 2D;
TEX color5, fragment.texcoord[ 5 ], texture[ 0 ], 2D;
TEX color6, fragment.texcoord[ 6 ], texture[ 0 ], 2D;
# calculate emboss
# 0.5 * (r + b) + -0.5 * (l + t) + (br - tl);
ADD color4, color4, color6;
ADD color1, color1, color3;
ADD color5, color5,-color2;
MUL color4, color4, divtwo;
MUL color1, color1, divtwo;
ADD color1,-color1, color4;
ADD color1, color1, color5;
DP3 color1, color1, toGray;
# add emboss to color0
ADD result.color, color0, color1;
END
Pete, if ShadX want, you can put it on your site.
Please test it, if you can... I am a little careless 
Ciao.
|
<ShadX>
unregistried
| | Created on 09.11.2004 - 18:30 | |
An example of 2x Hi-Res texture GLSL:
Vartex program
// Super Simplified hq2x (SShq2x) GLslang shader - ported ShadX. Comments by Pete Bernert (copied from Scale2x)
//
// see the .slf file for algorithm/license informations
//
// How to use the shaders: copy both files into the emu's "shaders" subdirectory,
// and rename them to "gpuPeteOGL2.slv" and "gpuPeteOGL2.slf".
// Configure the plugin: set "shader effects" to mode "5 - GLslang files".
//
// Important: to get a real SShq2x effect, your configured window/fullscreen size has
// to be at least twice as the internal resolution. That means:
// if your internal resolution is "0 - low", than the window/fullscreen size has to be at
// least 640x480 with most games. If you are using an internal resolution of "1 - high",
// your window/fullscreen size has to be at least 1280x960... it will not crash or
// something, if you are using smaller window/fullscreen sizes, but the algorithm will
// not work properly on all pixels. Also, the above values may vary, depending on the
// psx game's display size. The complete formula to set your window/fullscreen size is:
//
// "psx game resolution" * "plugin internal resolution mode + 1" * 2
//
// So, for a psx game which is using 320x240, and the "1 - high" mode, you would need
// 320x240 * (1 + 1) * 2 = 640x480 * 2 = 1280x960... mmmkay?
//
// Ah, and final note: SShq2X works best on games using clear 2D gfx
uniform vec4 OGL2Param;
uniform vec4 OGL2Size;
void main()
{
vec4 offsetx;
vec4 offsety;
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
offsetx.x = 1.0/OGL2Size.x; // setup one x/y texel offset
offsetx.y = 0.0;
offsetx.w = 0.0;
offsetx.z = 0.0;
offsety.y = 1.0/OGL2Size.y;
offsety.x = 0.0;
offsety.w = 0.0;
offsety.z = 0.0;
gl_TexCoord[0] = gl_MultiTexCoord0;
gl_TexCoord[1] = gl_TexCoord[0] + offsetx;
gl_TexCoord[2] = gl_TexCoord[0] + offsetx + offsety;
gl_TexCoord[3] = gl_TexCoord[0] + offsety;
}
Fragment program
// Super Simplified hq2x (SShq2x) GLslang shader - ported by ShadX
//
// hq2x Homepage: http://www.hiend3d.com/hq2x.html
// Original license informations:
// "Copyright (C) 2003 MaxSt ( maxst@hiend3d.com )
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later
// version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA."
//
// OGL2Size.x = texture x size (for example "2048" in "high internal resolution" setting)
// OGL2Size.y = texture y size (for example "1024" in "high internal resolution" setting)
// OGL2Size.z = tex rect width used for current rendering (psx display width)
// OGL2Size.w = tex rect height used for current rendering (psx display height)
//
// B = black C = any color
//
// [B][B]matrix 1
// [B][C]
//
// [B][B]matrix 2
// [C][B]
//
// [C][B]matrix 3
// [B][B]
//
// [B][C]matrix 4
// [B][B]
//
// [B][C]matrix 5
// [B][C]
//
// [B][B]matrix 6
// [C][C]
//
// [C][B]matrix 7
// [C][B]
//
// [C][C]matrix 8
// [B][B]
//
// [B][C]matrix 9
// [C][C]
//
// [C][B]matrix 10
// [C][C]
//
// [C][C]matrix 11
// [B][C]
//
// [C][C]matrix 12
// [C][B]
//
// [C][C]matrix 13
// [C][C]
uniform vec4 OGL2Param;
uniform vec4 OGL2Size;
uniform sampler2D OGL2Texture;
void main()
{
vec4 colA,colB,colC,colD,col;
vec3 black;
black.x = 0.0;
black.y = 0.0;
black.z = 0.0;
colA = texture2DProj(OGL2Texture, gl_TexCoord[0]); // (top-left)
colB = texture2DProj(OGL2Texture, gl_TexCoord[1]); // (top-right)
colC = texture2DProj(OGL2Texture, gl_TexCoord[2]); // (bottom-left)
colD = texture2DProj(OGL2Texture, gl_TexCoord[3]); // (bottom-right)
if(colA == colB && colB == colC && colC != colD && colC.xyz == black) // do the SShq2x rule 1
col=colA;
else
if(colA == colB && colB == colD && colD != colC && colD.xyz == black ) // do the SShq2x rule 2
col=colA;
else
if(colB == colC && colC == colD && colD != colA && colD.xyz == black ) // do the SShq2x rule 3
col=colB;
else
if(colA == colC && colC == colD && colD != colA && colD.xyz == black ) // do the SShq2x rule 4
col=colA;
else
if(colA == colC && colC != colB && colC != colD && colC.xyz == black ) // do the SShq2x rule 5
col=colC;
else
if(colA == colB && colB != colC && colB != colD && colB.xyz == black ) // do the SShq2x rule 6
col=colB;
else
if(colB == colD && colD != colC && colD != colA && colD.xyz == black ) // do the SShq2x rule 7
col=(colA+colC)/2.0;
else
if(colC == colD && colD != colA && colD != colC && colD.xyz == black ) // do the SShq2x rule 8
col=(colA+colB)/2.0;
else
if(colA != colB && colA != colC && colA != colD && colA.xyz == black ) // do the SShq2x rule 9
col=colA;
else
if(colB != colA && colB != colC && colB != colD && colB.xyz == black ) // do the SShq2x rule 10
col=(colA+colC+colD)/3.0;
else
if(colC != colA && colC != colB && colC != colD && colC.xyz == black ) // do the SShq2x rule 11
col=(colA+colB+colD)/3.0;
else
if(colD != colA && colD != colB && colD != colC && colB.xyz == black ) // do the SShq2x rule 12
col=(colA+colB+colC)/3.0;
else
if(colA.xyz != black && colB.xyz != black && colC.xyz != black && colD.xyz != black ) // do the SShq2x rule 13
col=(colA+colB+colC+colD)/4.0;
gl_FragColor = col;
}
Pete, Guest, anyone... optimizations or suggestions are welcome...
Bye
|
