Transparent texture overlay problem

[JoyrexJ9]

Hi,

I'm having problems with applying a transparent texture over  the top of another, the effect I want is as follows:

Base Texture  +   Texture Overlay (with alpha)  =   Desired result

I've tried what seems like every combination of TextureAttributes and various modes but no luck, surely this can be done? Here's the code I'm using

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TextureUnitState tu0 = new TextureUnitState((Texture2D) TextureLoader.tf.getMinMapTexture("floor.jpg"), null, null); TextureUnitState tu1 = new TextureUnitState((Texture2D) TextureLoader.tf.getMinMapTexture("test.png"), null, null); TextureAttributes ta0 = new TextureAttributes(); ta0.setTextureMode(TextureAttributes.MODULATE);            // Mode needs changing??? tu0.setTextureAttributes(ta0); TextureAttributes ta1 = new TextureAttributes();      // Mode needs changing??? ta1.setTextureMode(TextureAttributes.BLEND); tu1.setTextureAttributes(ta1); // ???? // Some combination of setCombineAlphaMode and setCombineRgbMode here ???? // The modes are not clearly documented which const values of TextureAttributes apply to each method? // ????   // is order in the array important? appearance.setTextureUnitState(new TextureUnitState [] {tu0, tu1});

Can anybody help? or at least explain the setCombineAlphaMode and setCombineRgbMode methods

Thanks....

[Yuri Vl. Gushchin]

Hi,

I suggest to check

http://oss.sgi.com/projects/ogl-sample/registry/EXT/texture_env_combine.txt

as starting point.

OK, this one is too low level maybe... but this is original source - the rest is just interpretations of this one.

Yuri

[hawkwind]

Look at my tutourial on xith.org site

http://xith.org/tutes/GettingStarted/html/more_fun_with_textures.html