Problems with Texture Blending

[Pan Kessel]

Hi all,

i have programmed a little terrain engine. I tried to improve the look of the terrain by selecting the height values as diffuse colors of the vertices(i am using CustomVertex.PositionColoredTextured).
Now i want to do sth like this:

device.TextureState[0].ColorOperation = TextureOperation.AddSinged;
device.TextureState[0].ColorArgument0 = TextureArgument.TextureColor;
device.TextureState[0].ColorArgument1 = TextureArgument.Diffuse;
device.TextureState[0].AlphaOperation = TextureOperation.Disable;

But the result is a surface containing just grey colors. Even if i select TextureOperation.SelectArg1 i just get these colors.
Please help!
Pan

 

[Kavan]

This might sound dumb, but are you setting the texture? Some code would probably clear things a bit.

 

[Pan Kessel]

First i created a mesh, then i fill it with the vertices. Here is the call setting the diffuse color:

//map is my hightmap
int color = map.Data[x,y]*5;

if(color > 255) color = 255;
vertices[index].Color = Color.FromArgb(255,color,color,color).ToArgb();


After setting the indices and opimizing it, i draw it:

int numSubSets = _mesh.AttributeTable.Length;

device.SetTexture(0, _surface);

//Start
device.TextureState[0].ColorOperation = TextureOperation.AddSinged;
device.TextureState[0].ColorArgument0 = TextureArgument.TextureColor;
device.TextureState[0].ColorArgument1 = TextureArgument.Diffuse;
device.TextureState[0].AlphaOperation = TextureOperation.Disable;
//End

for(int i=0;i<numSubSets;i++)
{
_mesh.DrawSubset(i);
}

If i comment the lines between start and end my programm works fine. If not everything is grey, as i descriped above. Even if i select SelectArg1 as Operation i get a grey result.