[SOLVED] Dynamic diffuse texture; unwanted fade out

[angus.wood]

I am working on in-game screens, where I take an image from a WidgetSpriteViewport and use imageTextureImage() to set the diffuse texture of an ObjectMeshDynamic. When the object is close to the screen it works as expected. However when the camera moves a short distance from the object the texture fades out and is replaced with a static texture. 

 

I would like to not fade out.

 

I have tried .setMaxFadeDistance(9999.0f,0) and .setMaxVisibleDistance(9999.0f, 0) but they do not seem to have any effect.

 

 

The code that sets the texture in update() is 

 

  image = new Image();
  wsv.renderImage(image);

  mat = omd.getMaterialInherit(0);
  index = mat.findTexture("diffuse");
  mat.setImageTextureImage(index, image, 1);

 

Edit: it appears that the texture size is a key factor. Larger textures fade to static more quickly than smaller textures do.

Edited December 11, 2014 by angus.wood

[silent]

Hi Angus,

 

Could you please provide a simple test scene? 

 

Thanks!

[angus.wood]

Ok. A test scene is attached. 

 

 

 

mup2p.zip

[unclebob]

Thanks, Angus!

 

I'll have a look and report back. Also, try to use .setMaxFadeDistance(INFINITY,0) instead of .setMaxFadeDistance(9999.0f,0) and the same for setMaxVisibleDistance.

[unclebob]

Hey Angus,

 

Looks like "meshes/Plane-mesh.mesh" is missing in your archive. Could you please add it to your test scene and upload it again?

[angus.wood]

Hey Angus,

 

Looks like "meshes/Plane-mesh.mesh" is missing in your archive. Could you please add it to your test scene and upload it again?

 

 

Sorry about that. An updated .ZIP is attached.

mup2p.zip

[angus.wood]

Solved!

 

The issue is related to mipmaps. The "fade out" that I was seeing is (we think) a lower resolution mipmap taking the place of the dynamically created texture. So by adding the line 

 

image.createMipmaps(IMAGE_FILTER_BOX, 1.0f);

to the code means that the texture is now all correct.

 

 

[unclebob]

Glad you solved it!