artoo

I am working on some shaders that sample multiple textures, but i'm not sure of the correct syntax to extend sh.passthrudim.vp

I can see where in need to add lines etc. and i've updated number identifiers asbest i can but it stilldoesnt seem to work. Have i done it correctly?

texcoord0 = vec2(gl_TextureMatrix[0] * gl_MultiTexCoord0);

texcoord1 = vec2(gl_TextureMatrix[1] * gl_MultiTexCoord1);

texcoord2 = vec2(gl_TextureMatrix[2] * gl_MultiTexCoord2);

texcoord3 = vec2(gl_TextureMatrix[3] * gl_MultiTexCoord3);

texcoord4 = vec2(gl_TextureMatrix[4] * gl_MultiTexCoord4);

texcoord5 = vec2(gl_TextureMatrix[5] * gl_MultiTexCoord5);

// extract the x and y scalars from the texture matrix to determine dimensions

texdim0 = vec2 (abs(gl_TextureMatrix[0][0][0]),abs(gl_TextureMatrix[0][1][1]));

texdim1 = vec2 (abs(gl_TextureMatrix[1][0][0]),abs(gl_TextureMatrix[1][1][1]));

texdim2 = vec2 (abs(gl_TextureMatrix[2][0][0]),abs(gl_TextureMatrix[2][1][1]));

texdim3 = vec2 (abs(gl_TextureMatrix[3][0][0]),abs(gl_TextureMatrix[3][1][1]));

texdim4 = vec2 (abs(gl_TextureMatrix[4][0][0]),abs(gl_TextureMatrix[4][1][1]));

texdim5 = vec2 (abs(gl_TextureMatrix[5][0][0]),abs(gl_TextureMatrix[5][1][1]));

texorient0 = vec2 (gl_TextureMatrix[0][0][0]/texdim0.x,gl_TextureMatrix[0][1][1]/texdim0.y);

texorient1 = vec2 (gl_TextureMatrix[1][0][0]/texdim1.x,gl_TextureMatrix[1][1][1]/texdim1.y);

texorient2 = vec2 (gl_TextureMatrix[2][0][0]/texdim2.x,gl_TextureMatrix[2][1][1]/texdim2.y);

texorient3 = vec2 (gl_TextureMatrix[3][0][0]/texdim3.x,gl_TextureMatrix[3][1][1]/texdim3.y);

texorient4 = vec2 (gl_TextureMatrix[4][0][0]/texdim4.x,gl_TextureMatrix[4][1][1]/texdim4.y);

texorient5 = vec2 (gl_TextureMatrix[5][0][0]/texdim5.x,gl_TextureMatrix[5][1][1]/texdim5.y);

varying vec2 texcoord0;
varying vec2 texcoord1;
varying vec2 texcoord2;
varying vec2 texcoord3;
varying vec2 texcoord4;
varying vec2 texcoord5;
varying vec2 texdim0;
varying vec2 texdim1;
varying vec2 texdim3;
varying vec2 texdim3;
varying vec2 texdim4;
varying vec2 texdim5;
varying vec2 texorient0;
varying vec2 texorient1;
varying vec2 texorient2;
varying vec2 texorient3;
varying vec2 texorient4;
varying vec2 texorient5;

void main()
{
    // perform standard transform on vertex
    gl_Position = ftransform();

    // transform texcoords
    texcoord0 = vec2(gl_TextureMatrix[0] * gl_MultiTexCoord0);
    texcoord1 = vec2(gl_TextureMatrix[1] * gl_MultiTexCoord1);
    texcoord2 = vec2(gl_TextureMatrix[2] * gl_MultiTexCoord2);
    texcoord3 = vec2(gl_TextureMatrix[3] * gl_MultiTexCoord3);
    texcoord4 = vec2(gl_TextureMatrix[4] * gl_MultiTexCoord4);
    texcoord5 = vec2(gl_TextureMatrix[5] * gl_MultiTexCoord5);
    // extract the x and y scalars from the texture matrix to determine dimensions
    texdim0 = vec2 (abs(gl_TextureMatrix[0][0][0]),abs(gl_TextureMatrix[0][1][1]));
    texdim1 = vec2 (abs(gl_TextureMatrix[1][0][0]),abs(gl_TextureMatrix[1][1][1]));
    texdim2 = vec2 (abs(gl_TextureMatrix[2][0][0]),abs(gl_TextureMatrix[2][1][1]));
    texdim3 = vec2 (abs(gl_TextureMatrix[3][0][0]),abs(gl_TextureMatrix[3][1][1]));
    texdim4 = vec2 (abs(gl_TextureMatrix[4][0][0]),abs(gl_TextureMatrix[4][1][1]));
    texdim5 = vec2 (abs(gl_TextureMatrix[5][0][0]),abs(gl_TextureMatrix[5][1][1]));
    // extract the sign for orientation
    texorient0 = vec2 (gl_TextureMatrix[0][0][0]/texdim0.x,gl_TextureMatrix[0][1][1]/texdim0.y);
    texorient1 = vec2 (gl_TextureMatrix[1][0][0]/texdim1.x,gl_TextureMatrix[1][1][1]/texdim1.y);
    texorient2 = vec2 (gl_TextureMatrix[2][0][0]/texdim2.x,gl_TextureMatrix[2][1][1]/texdim2.y);
    texorient3 = vec2 (gl_TextureMatrix[3][0][0]/texdim3.x,gl_TextureMatrix[3][1][1]/texdim3.y);
    texorient4 = vec2 (gl_TextureMatrix[4][0][0]/texdim4.x,gl_TextureMatrix[4][1][1]/texdim4.y);
    texorient5 = vec2 (gl_TextureMatrix[5][0][0]/texdim5.x,gl_TextureMatrix[5][1][1]/texdim5.y);
}


extending-sh-passthrudim-vp

Bump! Can anyone confirm whether I have got this right?

looks right to me. what are you trying to do and what's not working? post a patch if you need help.

Extending sh.passthrudim.vp