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From 04/08/2018 to 05/07/2018

05/03/2018

04:19 PM Revision 27aefee6 (library): OIT: clear the postprocessing buffer with transparent white.
Leszek Koltunski
03:10 PM Revision 55e1b307 (examples): Properly recreate the Atomic and LinkedList buffers onPause.
We have to discard all alpha==0.0 pixels during OIT Pass1. Leszek Koltunski
03:10 PM Revision 78e89fb5 (library): Properly recreate the Atomic and LinkedList buffers onPause.
We have to discard all alpha==0.0 pixels during OIT Pass1. Leszek Koltunski

05/02/2018

12:19 AM Revision b36613d8 (library): small correction for blending OIT colors.
Leszek Koltunski

05/01/2018

11:21 PM Revision c92d84ec (library): minor.
Leszek Koltunski
11:19 PM Revision 375b3950 (library): OIT: something starts working ('Blur' and 'Multiblur' work, 'Triblur' and 'Transparency' do not)
Leszek Koltunski
09:07 PM Revision da57b7da (examples): Fix the 'OIT' artefacts.
Leszek Koltunski
09:07 PM Revision c731c612 (library): Fix the 'OIT' artefacts.
Leszek Koltunski

04/27/2018

04:53 PM Revision 341151fc (library): Fixes ported from the 'OIT' branch:
- remove counting of transparent pixels
- various fixes for the Mali GPU
Leszek Koltunski
04:40 PM Revision 57512fcb (examples): still debugging the OIT
Leszek Koltunski
04:40 PM Revision e029600f (library): still debugging the OIT
Leszek Koltunski

04/26/2018

12:03 PM Revision 76800a4d (examples): - remove counting of transparent pixels from main fragment shader
- remove debugs and tidy up
- some fixes for the Mali GPU
Leszek Koltunski
11:22 AM Revision 2f35828c (library): - remove counting of transparent pixels from main fragment shader
- remove debugs and tidy up
- some fixes for the Mali GPU
Leszek Koltunski

04/25/2018

03:26 PM Revision cee0369a (library): Order Independent Transparency: debugging
Leszek Koltunski
02:17 PM Revision 47511918 (library): Order Independent Transparency: some progress
Leszek Koltunski
02:17 PM Revision a635eef9 (examples): Order Independent Transparency: some progress
Leszek Koltunski

04/18/2018

02:37 PM Revision f89a986e (library): Order Independent Transparency: some progress
Leszek Koltunski

04/17/2018

09:21 PM Revision 8777ce17 (library): Order Independent Transparency. Does not work yet.
Leszek Koltunski
09:19 PM Revision 96f271e9 (library): Minor.
Leszek Koltunski
09:07 PM Revision be169c10 (examples): Minor.
Leszek Koltunski

04/13/2018

08:50 PM 2001-disc.pdf
concurrent linked list Distorted Admin

04/12/2018

11:06 PM Bug #30 (Closed): Blur with zero radius changes opacity
Leszek Koltunski
11:06 PM Bug #30: Blur with zero radius changes opacity
Commit commit:library|8dccc3c2 fixes this. Leszek Koltunski
10:02 PM Feature #15: Order Independent Transparency
Theory understood, app checking functionality written. 20%. Leszek Koltunski
10:01 PM Bug #27: Blur effect: incorrect at the borders
Significant progress made: switching off blending while doing post processing has reduced the effect a lot.
Still w...
Leszek Koltunski
09:46 PM Revision 1a3f8cc2 (examples): Some improvements for 'Moving Glow'
Leszek Koltunski
08:43 PM Revision 3025c903 (examples): 'Transparency' app icon.
Leszek Koltunski
08:42 PM Revision 8dccc3c2 (library): Disable blending during postprocessing.
Leszek Koltunski

04/11/2018

11:49 PM deferred-on-mobile.pdf
Deferred effects on mobile systems. Distorted Admin
11:48 PM Document: Deferred Shading
Scientific papers describing ways to implement deferred shading. Distorted Admin
11:48 PM 2014.guacamole.pdf
Guacamole rendering system. Distorted Admin
11:43 PM 0518.pdf
stencil routed k-buffer Distorted Admin
11:43 PM a-buffer.pdf
a-buffer Distorted Admin
11:42 PM i3d2007.pdf
k-buffer Distorted Admin
11:39 PM Schollmeyer_et_al-2015-Computer_Graphics_Forum.pdf
Deferred shading pipelines Distorted Admin
11:35 PM TUBudapest-Barta-Pal.pdf
Per-pixel linked lists Distorted Admin
11:24 PM Document: Order Independent Transparency
Various scientific papers describing ways to implement Order Independent Transparency - depth peeling, k-buffer, A-bu... Distorted Admin
11:24 PM tvcg-kbuffer.pdf
k-buffer Distorted Admin
11:17 PM OpenGL ES 3.1 needed
Proper support for Order Independent Transparency calls for implementing A-buffer. This needs an Shader Storage Buffe... Distorted Admin
11:14 PM es_spec_3.1.pdf
OpenGL ES 3.1 specification Distorted Admin
11:12 PM Document: OpenGL 3.1 specs
OpenGL ES 3.1 and GLSL ES 3.1 specifications. Distorted Admin
11:12 PM GLSL_ES_Specification_3.10.withchanges.pdf
GLSL ES 3.1 specification Distorted Admin
11:08 PM Feature #15: Order Independent Transparency
Algorithm outlined in 'Per-Pixel Lists for Single Pass A-buffer' (Sylvain Lefebvre, Samuel Hornus, Anass Lasram) - sp... Leszek Koltunski
11:03 PM Feature #15: Order Independent Transparency
Commit commit:examples|664a0e45 adds an application checking this feature. Leszek Koltunski
11:01 PM Bug #30 (Closed): Blur with zero radius changes opacity
As discovered by the 'Transparency' app, Blur with zero radius is not a no-op as it is supposed to be - at least not ... Leszek Koltunski
10:56 PM Revision 664a0e45 (examples): New app checking Order Independent Transparency.
Leszek Koltunski

04/09/2018

04:08 PM Bug #27: Blur effect: incorrect at the borders
It's beginning to look like this simply has to work like this... Leszek Koltunski
12:04 PM Bug #28 (Closed): Blur: looks of a blurred object depend on what's underneath
Fixed in commit:library|9455da17 Leszek Koltunski
12:03 PM Revision 9455da17 (library): Fix for bug #28: looks of the borders of a blurred object depend on if the object is the first in the postprocessing bucket.
Leszek Koltunski

04/08/2018

10:49 PM Bug #28: Blur: looks of a blurred object depend on what's underneath
Actually it turns out that the looks do NOT depend on what's underneath. They depend on if the object being blurred i... Distorted Admin
09:20 PM Bug #28 (Closed): Blur: looks of a blurred object depend on what's underneath
Fire up the 'Triblur' app, rotate so that the left (red) cube is partially obstructed by the middle one, and keep tog... Leszek Koltunski
10:01 PM Feature #11: New effect: wait
Probably not very useful. Lowering priority. Distorted Admin
09:24 PM Bug #29 (Closed): Postprocessed surface incorrectly merged
As easily demonstrated by the 'Triblur' app, when we have 2 postprocessed objects, and the one closer to us is drawn ... Leszek Koltunski
09:17 PM Bug #27 (Closed): Blur effect: incorrect at the borders
As demonstrated by the 'PostprocessTree' app, blurred objects get smaller and smaller when blur radius increases, ult... Leszek Koltunski
09:12 PM Feature #26 (Closed): Use SSBO for storing effect arrays
Currently, the arrays of floats that describe the individual effects in the main Vertex and Fragment shaders are stor... Leszek Koltunski
09:07 PM Revision ae2802b1 (library): Postprocessing buffers mBuffer[] are now shared among all postprocessing operations. This saves a lot of memory, but also means that when doing each particular postprocessing, the textures backing up the mBuffer might be too large. We need to fix two things here: when outputting to those too large textures, we need to adjust the Viewport, and when binding those too large textures as input - we need to adjust the TexCoords to compensate.
This commit does just that. Verified as working by the 'PostprocessTree' app. Leszek Koltunski
08:36 PM Revision d8f9a204 (examples): 'PostprocessTree' app: enable the point: double blur.
Leszek Koltunski
 

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