meshes as in the dxviewer

[kopi_b]

hi!

i've a problem with my meshes
in dxviewer it looks nearly how it should be:
http://www.toomaniac.com/kopi/mesh/dxviewer.gif

but in my program the shading isn't like in the dxviewer (e.g. the lots are missing):
http://www.toomaniac.com/kopi/mesh/program.gif

here are my parameters and my renderstates:

parameters.Windowed = true;
parameters.SwapEffect = SwapEffect.Discard;
parameters.EnableAutoDepthStencil = true;
parameters.AutoDepthStencilFormat = DepthFormat.D16;

dev = new Device(0, DeviceType.Hardware, this, CreateFlags.SoftwareVertexProcessing, parameters);
dev.RenderState.ZBufferEnable = true;
dev.RenderState.Lighting = true;
dev.RenderState.CullMode = Cull.None;
dev.RenderState.Ambient = System.Drawing.Color.White;
dev.RenderState.SourceBlend = Blend.SourceAlpha;
dev.RenderState.DestinationBlend = Blend.InvSourceAlpha;
dev.RenderState.ZBufferWriteEnable = true;
dev.RenderState.AlphaBlendEnable = false;
dev.Lights[0].Type = LightType.Directional;
dev.Lights[0].Diffuse = System.Drawing.Color.White;
dev.Lights[0].Direction = new Vector3(-2.0f, -2.0f, -2.0f);
dev.Lights[0].Enabled = true;
dev.Lights[1].Type = LightType.Directional;
dev.Lights[1].Diffuse = System.Drawing.Color.White;
dev.Lights[1].Direction = new Vector3(2.0f, 2.0f, 2.0f);
dev.Lights[1].Enabled = true;
dev.RenderState.Ambient = System.Drawing.Color.FromArgb(0x202020);


loading of the mesh:
mesh = Mesh.FromFile(filename, MeshFlags.SystemMemory, dev, out materials);
meshMaterials = new Material[materials.Length];
for (int i = 0; i < materials.Length; i++)
{
meshMaterials[i] = materials[i].Material3D;
meshMaterials[i].Ambient = meshMaterials[i].Diffuse;
}


what do i have to do to view my mesh as in the dxviewer?

kopi_b

[geon]

Light seems to come from the wrong direction, at exactly 45 degrees against the thing in the front. That would make the shading dissapear. Move the light around a bit.

[kopi_b]

thx!!!
changing the direction of the light makes it much better
it still looks better in the dxviewer but that's not so important

kopi_b