Custom MaterialData UV & Parameter Bugs [SOLVED]

Helper

On 11/11/2014 at 10:45, xxxxxxxx wrote:

this is a normal behavior!! , I tested it with standard material and it does the same!!!!

edit: this is a CONFIRMED bug, when I render, it renders correctly "OpenGL got a problem here" , it renders correct because it uses UVs , not spherical projection "like OpenGL"

Helper

On 16/11/2014 at 10:44, xxxxxxxx wrote:

@Sebastian.
There seems to be a problem in your example.
When you choose to use a shader. And you load an image into the shader. The preview icon is white.
This only happens with the sphere preview option.

I just ran into this same problem when writing my own R13 material plugin.
And I discovered that if I Shift+LMB on the sphere in preview window and rotate it 180 degrees in X. The image shows up properly.
So I guess we need a way to either show both sides of the sphere. Or some way to see the other side of the sphere in the material's preview window?

-ScottA

Helper

On 21/11/2014 at 11:38, xxxxxxxx wrote:

Any progress in fixing the sphere preview yet?

-ScottA

Helper

On 24/11/2014 at 10:57, xxxxxxxx wrote:

Hello,

I have not found a solution for this particular issue yet.

best wishes,
Sebastian

Helper

On 24/11/2014 at 11:43, xxxxxxxx wrote:

OK. Thanks for the update.
At least I know now that it's not something I'm doing wrong.

-ScottA

Helper

On 28/11/2014 at 02:18, xxxxxxxx wrote:

Hello,

in the standards preview scene the Texture Tag tiles the U coordinate. This way coordinates bigger than 1 are created. So a material must handle such coordinates. To make sure a shader will handle this properly the texture flags in the ChannelData[URL-REMOVED] object have to be set. This can be done using CALC_TEXINFO[URL-REMOVED]:

  
             ChannelData channelData(vd);  
             channelData.texflag = CALC_TEXINFO(((TexData* )vd->tex)->texflag, CHANNEL_ANY);  
  
             resultColor = _renderParamShader->Sample(&channelData);

For further questions on materials please open a new thread. Thanks.

Best wishes,
Sebastian

[URL-REMOVED] @maxon: This section contained a non-resolving link which has been removed.

Helper

On 28/11/2014 at 07:43, xxxxxxxx wrote:

Excellent. That fixes it.
Thanks Sebastian.

-ScottA