Alpha doesnt work

[.exe]

Using JOGL, and problem is - there is no alpha. I have a PNG file that shows transparency in photoshop.

Loading texture:

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public void LoadTextureFromResource(String res,String type) throws IOException    {               InputStream stream = getClass().getResourceAsStream(res);         TextureData data = TextureIO.newTextureData(GLProfile.getDefault(),stream,GL2.GL_RGBA,GL2.GL_RGBA, false, type);         this.texture = TextureIO.newTexture(data);         this.loaded = true;    }

OpenGL init:

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GLCapabilities capabilities = new GLCapabilities(GLProfile.getDefault());         capabilities.setHardwareAccelerated(true);         capabilities.setNumSamples(0);         capabilities.setAlphaBits(8);         capabilities.setSampleBuffers(true);         ......                 gl.glDisable(GL2.GL_LIGHTING);    gl.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);  // <--   gl.glEnable (GL2.GL_BLEND);         gl.glShadeModel(GLLightingFunc.GL_SMOOTH);         gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);         gl.glClearDepth(1.0f);         gl.glEnable(GL.GL_DEPTH_TEST);         gl.glDepthFunc(GL.GL_LEQUAL);         gl.glHint(GL2ES1.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST);

Tried changing blend func, some modes make everything transparent, this one renders fine but without alpha.
And ofcourse, im rendering object with that texture last.

Help??

[loom_weaver]

Don't know if this will help but here is what I needed to do to get alpha textures in lwjgl.

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glEnable(GL_BLEND)     glDisable(GL_DITHER)     glDisable(GL_FOG)     glDisable(GL_LIGHTING)     glEnable(GL_LINE_SMOOTH)     glDisable(GL_TEXTURE_1D)     glEnable(GL_TEXTURE_2D)     //glShadeModel(GL_FLAT)    glShadeModel(GL_SMOOTH)     //glPolygonMode(GL_FRONT, GL_LINE)    glPolygonMode(GL_FRONT, GL_FILL)     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)     glEnableClientState(GL_VERTEX_ARRAY)     glEnableClientState(GL_TEXTURE_COORD_ARRAY)     glEnableClientState(GL_COLOR_ARRAY)

[.exe]

Almost everything i have   

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[sproingie]

You have depth testing enabled, which will defeat blending.  You need to disable it.

[.exe]

still doesn't work, and i see poligons thru walls.

[.exe]

ok made a progress, removed default color from objects, only texture now.

now on areas where should be transparent, i have red color?

EDIT: its not the background, background is blue

[.exe]

ok, found a problem: gl.glTexEnvi (GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL2.GL_DECAL);

after removing* that transparency works, but everything is red... its red becouse of font rendering.

is there a way to reset opengl color after calling glColor?? and another way to use only texture color no lights?

[jonjava]

Seems like R and A are in the wrong place (GL2.GL_RGBA).

Is there an GL_ARGB version?

[.exe]

setting glColor to white, fixes the problem... but the scene is a little brighter.

The following code was causing alpha to fail:

1	gl.glTexEnvi (GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL2.GL_DECAL);