724 2013-04-24 14:56:45 +0200 Loading transparent PNG without alpha channel into Texture 2013-07-03 11:50:01 +0200 1 1 3 JogAmp Jogl util 2 All all RESOLVED FIXED --- major --- 1 alan.zgb sgothel alan.zgb --- 35fcf49d1cb49e3844e7cee44f34d827d8a102ce 51427b92a2d9cd3fc619854e26536c9c6adad947 f0c8d6cf5d7f8f64cea79b3d0d27e4db6ccef41e --- oldest_to_newest 2513 0 456 alan.zgb 2013-04-24 14:56:45 +0200 Created attachment 456 Original PNG. Contains transparent background. Created in Adobe Photoshop. Loading the texture via following command doesn't work properly: TextureIO.newTexture(getClass().getClassLoader().getResource("original.png"), false, "png"); Result can be seen here: http://forum.jogamp.org/file/n4029016/bar-left-rendered.png (don't mind the blue line and rotation, it's from another png). It turns out yellow instead of gray. If I use the following command it works fine: BufferedImage img = ImageIO.read(getClass().getClassLoader().getResource("original.png")); TextureIO.newTexture(AWTTextureIO.newTextureData(GLProfile.getDefault(), img, false)); The problem is I can't use AWTTextureIO on Android, which is one of our target platforms. The original image is in attachment. It's a default png image created in Adobe Photoshop - with transparent background and no alpha channel - used for web and Jogl1 with no problems. 2749 1 sgothel 2013-07-03 11:50:01 +0200 1 Add manual unit test, incr. PNGImage verbosity. 2 PNGJ: Bump to git sha1 a0b1101ba2d37de39428ed55c8189502e24a3125 of https://code.google.com/p/pngj/ 3 Testing PNG Transparency / Fixing GLSL Shader of test case: Mix texture alpha properly (pre-multiply), due to lack of ALPHA_BLENDING. 'Works for me' .. i.e. w/ fixed GLSL shader respecting texture alpha, the GL readBuffer produced the right data. I don't think [2] has anything todo w/ it - but I don't like to test again. Thank you for the test case (image), it is incl. in our unit tests now [1 and 3]. You might want to tune your shader code, or enable ALPHA blending ?! 456 2013-04-24 14:56:45 +0200 2013-04-24 14:56:45 +0200 Original PNG. Contains transparent background. 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