|Summary:||NPOT textures don't work|
|Product:||[JogAmp] Jogl||Reporter:||paolofuse <paolo>|
|Component:||macosx||Assignee:||Sven Gothel <sgothel>|
gluegen test results
Description paolofuse 2015-09-15 10:12:22 CEST
Created attachment 733 [details] test image I cannot display simple NPOT texture. You can repeat the issue with this demo: https://github.com/sgothel/jogl-demos/blob/master/src/demos/texture/TestTexture.java I attach an image to test it. My configuration is: Mac Book Pro Video card AMD Radeon HD 6490M OSX 10.10.5 Java version 220.127.116.11 JOGL version 27/03/2015
Comment 1 Sven Gothel 2015-09-17 02:04:08 CEST
no problem here on GNU/Linux w/ 'modern GPU/GL'. Also note that most of our test textures have NPOT dimensions. You have to query whether your GL context supports NPOT, see: https://jogamp.org/deployment/jogamp-next/javadoc/jogl/javadoc/com/jogamp/opengl/GLContext.html#isNPOTTextureAvailable%28%29
Comment 2 paolofuse 2015-09-17 10:37:31 CEST
I query my GL with isNPOTTextureAvailable() and it returns TRUE. And still my NPOT textures are not display. I attach 2 screenshot, with NPOT and POT texture, made with https://github.com/sgothel/jogl-demos/blob/master/src/demos/texture/TestTexture.java
Comment 5 Julien Gouesse 2015-09-18 23:53:06 CEST
Please can you run all tests and post the logs? I wonder whether there is a problem with your driver.
Comment 6 paolofuse 2015-10-01 15:33:37 CEST
Sorry for late replay. I post all jogl and gluegen test results. I run the tests on other machine (my old Mac was busy), where the problem with NPOT textures still remains. This is my new configuration: Mac Book Pro Video Card AMD Radeon R9 M370X OSX 10.10.5 Java Version 18.104.22.168 JOGL version 27/03/2015
Comment 7 paolofuse 2015-10-01 15:36:53 CEST
Created attachment 752 [details] gluegen test results All gluegen test results.
Comment 8 paolofuse 2015-10-01 15:50:49 CEST
Well I've tried on others Mac with another video cards. On GeForce video card and on Iris Pro the NPOT texture is displayed well. So I think the problem is with ATI video cards, because both of my video cards are ATI: AMD Radeon HD 6490M AMD Radeon R9 M370X Is this a bug? Is it possible to fix it? I'm also unable to play movie with GLMediaPlayer and FFMPEG, because the method TextureFrame.getTexture() gives me a not displayable NPOT texture. Thanks.
Comment 9 paolofuse 2015-10-01 16:28:41 CEST
More information: loading my NPOT texture with TextureIO.newTexture I get GL_TEXTURE_RECTANGLE as texture's target. And this is coherent with the docs: "Further more, GL_ARB_texture_rectangle (RECT) will be attempted on OSX w/ ATI drivers" But the texture is not display well, there's a colored rectangle instead.
Comment 10 paolofuse 2015-10-01 16:59:28 CEST
I figured out the problem. My texture has a GL_TEXTURE_RECTANGLE target and the range of texture coordinates corresponding to the entire texture image is [0.0, width] x [0.0, height], on the contrary the range of texture coordinates for GL_TEXTURE_2D is [0.0, 1.0] x [0.0, 1.0]. The bug is on texture.getImageTexCoords(). It gives [h: 0.0 - 1.0, v: 0.0 - 1.0] also with GL_TEXTURE_RECTANGLE, for this the texture is not displayed correctly. If you update tex coords by manually calling for example setMustFlipVertically() the returned coords are correct.
Comment 11 Sven Gothel 2015-10-02 14:48:49 CEST
(In reply to paolofuse from comment #10) > I figured out the problem. > My texture has a GL_TEXTURE_RECTANGLE target and the range of texture > coordinates corresponding to the entire texture image is [0.0, width] x > [0.0, height], on the contrary the range of texture coordinates for > GL_TEXTURE_2D is [0.0, 1.0] x [0.0, 1.0]. > > The bug is on texture.getImageTexCoords(). It gives [h: 0.0 - 1.0, v: 0.0 - > 1.0] also with GL_TEXTURE_RECTANGLE, for this the texture is not displayed > correctly. > > If you update tex coords by manually calling for example > setMustFlipVertically() the returned coords are correct. Thank you, confirmed and created Bug 1241 for this issue!