Texture not mapped correctly

Graphics and GPU Programming Programming

Started by VISQI May 30, 2011 02:45 PM

5 comments, last by VISQI 12 years, 10 months ago

VISQI

113

Author

May 30, 2011 02:45 PM

Hey people,
I am rendering a room mesh but the textures are getting mapped so incorrectly.

Any suggestions??

Aqua Costa

3,705

May 30, 2011 06:40 PM

What addressing mode are you using to sample the texture? Are you using WRAP mode?

Are you sure the importer works correctly?

VISQI

113

Author

May 30, 2011 07:20 PM

What addressing mode are you using to sample the texture? Are you using WRAP mode?

Are you sure the importer works correctly?

yes, i am using WRAP.

The FX file just does a basic tex2D() call with no changes to the texture coordinates.

here is how i use it:





sampler sTex = sampler_state

{

	texture = <gTex>;

	MinFilter = LINEAR;

	MagFilter = LINEAR;

	MipFilter = LINEAR;

	AddressU  = WRAP;

	AddressV  = WRAP;

};

....

....

....

....



float3 TexColor = tex2D(sTex, TexC).rgb;



float3 Color = (Diff + Amb)*TexColor + Spec;

VISQI

113

Author

May 31, 2011 11:36 AM

bump.

21st Century Moose

13,459

May 31, 2011 12:02 PM

Well what's wrong? What should it look like?

Direct3D has need of instancing, but we do not. We have plenty of glVertexAttrib calls.

TomKQT

1,708

May 31, 2011 12:25 PM

It's clearly problem with texture coordinates, you've got them wrong. Question is how and why.

- Where did you get the room mesh from? Did you model it in some 3D SW like Blender or 3ds max and exported it to .x file?
- How is it supposed to look like, what does the texture represent? Is it a texture atlas with parts for separate walls?
- Is there supposed to be only one texture or will there be multi-texturing (like a diffuse map plus a lighting map or something in this meaning)?

- If there are multiple texture coordinates in the mesh (depends on the previous points), are you using the right one? How's TexC defined? Is it
float2 TexC : TEXCOORD0
or
float2 TexC : TEXCOORD1
Try to change between those two.