!!ATIfs1.0

StartOutputPass;
	SampleMap r0, t0.str; # Dirt
	SampleMap r1, t1.str; # Grass
	SampleMap r2, t2.str; # Rock
	SampleMap r3, t3.str; # Snow
	SampleMap r4, t4.str; # Blend Map

	MUL r0, r4.r, r0;
	MAD r0, r4.g, r1, r0;
	MAD r0, r4.b, r2, r0;
	MAD r0, r4.a, r3, r0;
EndPass;
 

// Vertex programvoid main(void){   gl_TexCoord[0] = glMultiTexCoord0;  // dirt   gl_TexCoord[1] = glMultiTexCoord1;  // grass   gl_TexCoord[2] = glMultiTexCoord2;  // rock   gl_TexCoord[3] = glMultiTexCoord3;  // snow   gl_TexCoord[4] = glMultiTexCoord4;  // blendmap   gl_Position = fTransform();}// fragment programuniform sampler2D dirttexture;uniform sampler2D grasstexture;uniform sampler2D rocktexture;uniform sampler2D snowtexture;uniform sampler2D blendmap;void main(void){   vec4 bmap = texture2D(blendmap, gl_TexCoord[4]);   vec4 dirt = texture2D(dirttexture, gl_TexCoord[0])*bmap.r;   dirt += texture2D(grasstexture, gl_TexCoord[1])*bmap.g;   dirt += texture2D(rocktexture, gl_TexCoord[2])*bmap.b;   dirt += texture2D(snowtexture, gl_TexCoord[3])*bmap.a;   glFragColor = dirt;}

quote:Original post by _the_phantom_
hmmm do you mean GLSL or ARB_fragment_program ?

Either way, i''ll bite coz i''m bored

// Vertex programvoid main(void){   gl_TexCoord[0] = glMultiTexCoord0;  // dirt   gl_TexCoord[1] = glMultiTexCoord1;  // grass   gl_TexCoord[2] = glMultiTexCoord2;  // rock   gl_TexCoord[3] = glMultiTexCoord3;  // snow   gl_TexCoord[4] = glMultiTexCoord4;  // blendmap   gl_Position = fTransform();}// fragment programuniform sampler2D dirttexture;uniform sampler2D grasstexture;uniform sampler2D rocktexture;uniform sampler2D snowtexture;uniform sampler2D blendmap;void main(void){   vec4 bmap = texture3D(blendmap, gl_TexCoord[4].stp);   vec4 dirt = texture3D(dirttexture, gl_TexCoord[0].stp)*bmap.r;   dirt += texture3D(grasstexture, gl_TexCoord[1].stp)*bmap.g;   dirt += texture3D(rocktexture, gl_TexCoord[2].stp)*bmap.b;   dirt += texture3D(snowtexture, gl_TexCoord[3].stp)*bmap.a;   glFragColor = dirt;}

In THEORY thats how it can be done in GLSL, note the use of Texture3D, thats simply because you appear to be using 3D textures (lookup against str in the code above) however that could just be me not understanding the code, in which case replace texture3D with texture2D and drop the ''p'' from the texcoord part (p being GLSL''s r).

Let me know if it works or not, its my first bit of code, hehe



[Phantom Web | OpenGL Window Framework ]
"i wonder why i do that... type words which are nuffin like the word i wanted every now and badger"

!!ARBfp1.0OUTPUT fragColor = result.color;TEMP blendmap, temp, col;#fetch the blendmap;TXP blendmap, fragment.texcoord[4], texture[4], 2D;TXP temp, fragment.texcoord[0], texture[0], 2D;MUL col, blendmap.r, temp;TXP temp, fragment.texcoord[1], texture[1], 2D;MAD col, blendmap.g, temp, col;TXP temp, fragment.texcoord[2], texture[2], 2D;MAD col, blendmap.b, temp, col;TXP temp, fragment.texcoord[3], texture[3], 2D;MAD fragColor, blendmap.a, temp, col;

!!ARBfp1.0PARAM const = {.25, .25, .25, .25};TEMP blendmap, temp, col;TXP blendmap, fragment.texcoord[4], texture[4], 2D;MUL blendmap, blendmap, const;TXP temp, fragment.texcoord[0], texture[0], 2D;MUL col, blendmap.r, temp;TXP temp, fragment.texcoord[1], texture[1], 2D;MAD col, blendmap.g, temp, col;TXP temp, fragment.texcoord[2], texture[2], 2D;MAD col, blendmap.b, temp, col;TXP temp, fragment.texcoord[3], texture[3], 2D;MAD result.color, blendmap.a, temp, col;END 

quote:Original post by MARS_999
Is my blendmap wrong? Something about all rgba = 4? Not sure how 4 is suppose to work when I am using 8bit values of 0-255 in a .tga format?