Hi. I red the terrain tutorial. So I know how to add 3 textures to map and it works preety good. But I wanna add for example 6 textures. I red that I have to edit Terrain.j3md file. So I added tex4,5 and 6. And I modified the Terrain.frag file. But it doesn’t work. My new colours are rocognizing as older 3 colours (RGB). Here is this 2 files, maybe I’m adding colours in wrong way:
Terrain.j3md
[java]MaterialDef Terrain {
MaterialParameters {
// use tri-planar mapping
Boolean useTriPlanarMapping
Texture2D Alpha
Texture2D Tex1
Texture2D Tex2
Texture2D Tex3
Texture2D Tex4
Texture2D Tex5
Texture2D Tex6
Float Tex1Scale
Float Tex2Scale
Float Tex3Scale
Float Tex4Scale
Float Tex5Scale
Float Tex6Scale
}
Technique {
VertexShader GLSL100: Common/MatDefs/Terrain/Terrain.vert
FragmentShader GLSL100: Common/MatDefs/Terrain/Terrain.frag
WorldParameters {
WorldViewProjectionMatrix
}
Defines {
TRI_PLANAR_MAPPING : useTriPlanarMapping
}
}
Technique {
}
}[/java]
Terrain.frag
[java]uniform sampler2D m_Alpha;
uniform sampler2D m_Tex1; //grass
uniform sampler2D m_Tex2; //snow
uniform sampler2D m_Tex3; //path
uniform sampler2D m_Tex4; //sand
uniform sampler2D m_Tex5; //rock
uniform sampler2D m_Tex6; //water?
uniform float m_Tex1Scale;
uniform float m_Tex2Scale;
uniform float m_Tex3Scale;
uniform float m_Tex4Scale;
uniform float m_Tex5Scale;
uniform float m_Tex6Scale;
varying vec2 texCoord;
#ifdef TRI_PLANAR_MAPPING
varying vec4 vVertex;
varying vec3 vNormal;
#endif
void main(void)
{
// get the alpha value at this 2D texture coord
vec4 alpha = texture2D( m_Alpha, texCoord.xy );
#ifdef TRI_PLANAR_MAPPING
// tri-planar texture bending factor for this fragment’s normal
vec3 blending = abs( vNormal );
blending = (blending -0.2) * 0.7;
blending = normalize(max(blending, 0.00001)); // Force weights to sum to 1.0 (very important!)
float b = (blending.x + blending.y + blending.z);
blending /= vec3(b, b, b);
// texture coords
vec4 coords = vVertex;
vec4 col1 = texture2D( m_Tex1, coords.yz * m_Tex1Scale );
vec4 col2 = texture2D( m_Tex1, coords.xz * m_Tex1Scale );
vec4 col3 = texture2D( m_Tex1, coords.xy * m_Tex1Scale );
// blend the results of the 3 planar projections.
vec4 tex1 = col1 * blending.x + col2 * blending.y + col3 * blending.z;
col1 = texture2D( m_Tex2, coords.yz * m_Tex2Scale );
col2 = texture2D( m_Tex2, coords.xz * m_Tex2Scale );
col3 = texture2D( m_Tex2, coords.xy * m_Tex2Scale );
// blend the results of the 3 planar projections.
vec4 tex2 = col1 * blending.x + col2 * blending.y + col3 * blending.z;
col1 = texture2D( m_Tex3, coords.yz * m_Tex3Scale );
col2 = texture2D( m_Tex3, coords.xz * m_Tex3Scale );
col3 = texture2D( m_Tex3, coords.xy * m_Tex3Scale );
// blend the results of the 3 planar projections.
vec4 tex3 = col1 * blending.x + col2 * blending.y + col3 * blending.z;
col1 = texture2D( m_Tex4, coords.yz * m_Tex4Scale );
col2 = texture2D( m_Tex4, coords.xz * m_Tex4Scale );
col3 = texture2D( m_Tex4, coords.xy * m_Tex4cale );
// blend the results of the 3 planar projections.
vec4 tex4 = col1 * blending.x + col2 * blending.y + col3 * blending.z;
col1 = texture2D( m_Tex5, coords.yz * m_Tex5Scale );
col2 = texture2D( m_Tex5, coords.xz * m_Tex5Scale );
col3 = texture2D( m_Tex5, coords.xy * m_Tex5Scale );
// blend the results of the 3 planar projections.
vec4 tex5 = col1 * blending.x + col2 * blending.y + col3 * blending.z;
col1 = texture2D( m_Tex6, coords.yz * m_Tex6Scale );
col2 = texture2D( m_Tex6, coords.xz * m_Tex6Scale );
col3 = texture2D( m_Tex6, coords.xy * m_Tex6Scale );
// blend the results of the 3 planar projections.
vec4 tex6 = col1 * blending.x + col2 * blending.y + col3 * blending.z;
#else
vec4 tex1 = texture2D( m_Tex1, texCoord.xy * m_Tex1Scale ); // Tile
vec4 tex2 = texture2D( m_Tex2, texCoord.xy * m_Tex2Scale ); // Tile
vec4 tex3 = texture2D( m_Tex3, texCoord.xy * m_Tex3Scale ); // Tile
vec4 tex1 = texture2D( m_Tex4, texCoord.xy * m_Tex4Scale ); // Tile
vec4 tex2 = texture2D( m_Tex5, texCoord.xy * m_Tex5Scale ); // Tile
vec4 tex3 = texture2D( m_Tex6, texCoord.xy * m_Tex6Scale ); // Tile
#endif
vec4 outColor = tex1 * alpha.r; // Red channel
outColor += tex2 * alpha.g; // Green channel
outColor += tex3 * alpha.b; // Blue channel
outColor += tex4 * ((alpha.r + alpha.g)/2); // Red Green channel
outColor += tex5 * ((alpha.r + alpha.b)/2); // Red Blue channel
outColor += tex6 * ((alpha.g + alpha.b)/2); // Green Blue channel
gl_FragColor = outColor;
}
[/java]
And here is my alphamap:
http://imageshack.us/a/img189/8573/alphamap2.png
OK, I found solution, I have wrong paths in my first file 
EOT
TerrainLighting.j3md supports 12 textures, and does lighting.