Weird texture problem !

A little bit more information might be useful. Your description doesn't have much in the way of details [smile]

If you're rendering 2D geometry/images then its likely to be draw-order dependent (not sure if ID3DXLine supports Z/depth values, even if thats what you're using...)

You say you're changing your textures... does that mean you're creating/loading a new IDirect3DTexture9 or are you Release()'ing and re-using the same one?

A bit more of an explanation - some pseudo code for example - might help us give you a better answer...

Cheers,
Jack

Your lines are actually having UV coordinates ?

If not, is your texture having alpha channel and you have alpha blending/testing enabled. This might lead to a situation where the texture alpha keeps the lines from being rendered.

Ok I was in a hurry...

//I wanted to change wMan4.jpg for another jpg.//When I changed the filename, the line then dissapeared.if (c1->initialise(d3dDevice, "wMan4.jpg") != D3D_OK){	return debug::erreur(rslt, __LINE__, __FILE__, "CreateVeffailed.");}

A little bit of initialise function...

	rslt = pDevice->CreateVertexBuffer ( NB_VERTICES * sizeof(BASEVERTEX),			D3DUSAGE_WRITEONLY, D3DFVF_BASEVERTEX, D3DPOOL_DEFAULT, &vertexBuffer, NULL);	if (imageFile){		rslt=D3DXCreateTextureFromFileEx(pDevice, imageFile, D3DX_DEFAULT, D3DX_DEFAULT,								  D3DX_DEFAULT, 0, D3DFMT_UNKNOWN, D3DPOOL_MANAGED,								  D3DX_DEFAULT, D3DX_DEFAULT, /*0*/0xFFFFFFFF, ∈, NULL, &texture);			if (FAILED(rslt)){			return D3DObject::erreur(rslt, __LINE__, __FILE__, "CreateTexture() failed.");		}		}	pDevice->SetRenderState(D3DRS_ALPHAFUNC, D3DCMP_GREATER );	pDevice->SetRenderState(D3DRS_ALPHATESTENABLE, TRUE);

My FVF for the lines is D3DFVF_BASEVERTEXLINE (D3DFVF_XYZ | D3DFVF_DIFFUSE)

FOr the textures it's D3DFVF_BASEVERTEX (D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_TEX1)

No my lines don't have UV coordinates.

Of course the lines are for debugging/visual helping purpose only, but right now I need to see them !

And no I don't create another IDirect3DTexture9 nor realising it.

All I do is changing the filename used to create the texture
So basically in my scene there is one textured quad and a bunch of lines.

I ran the program once with let's say a boat image on the quad.
Lines were showing up properly.

I changed the filename (ex : from boat.jpg to cat.jpg) in my code, compiled and ran it again.
But all I saw was a cat, and no lines :(


That's it.