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library / src / main / res / raw @ 20af7b69

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main_fragment_shader.glsl 5.16 KB
main_vertex_shader.glsl 20.4 KB

Latest revisions

# Date Author Comment
20af7b69 08/24/2016 09:31 PM Leszek Koltunski

Correct an important bug in the vertex shader.

b = 1/a if a!=0, 1 otherwise was incorrectly computed as b = 1.0 / (a+1.0-sign(a)). This, when 0<a<2^-24, suffers from 'round-off error': then a+1.0 = 1.0 (sic!) thus b = 1/0 !.

Correct way: b = 1.0 / ( a - (sign(a)-1.0) )
77fcb24d 08/11/2016 10:41 PM Leszek Koltunski

Fix for Bug #17: Regions of Fragment Effects migrate.

Fix is: don't send vertex position and the Fragment Effect region to the fragment shader already multiplied by the ModelView matrix (that introduces the imprecise interpolation because of the projection effect) but simply send both of them in local coords.
42e08626 08/09/2016 02:22 PM Leszek Koltunski

Remove the MACROBLOCK Effect altogether.
ff8ad0a7 07/20/2016 11:11 PM Leszek Koltunski

Fix for Bug #16: When rotated at an angle, surfaces get increasingly transparent.

This also fixes the saturation, chroma, alpha + contrast effects, while completely breaking macroblocks :)
30925500 07/17/2016 09:27 PM Leszek Koltunski

Fix for Bug #18: DISTORT effect: disappearing triangles
9420f2fe 07/16/2016 11:14 PM Leszek Koltunski

Fix for Bug 19: SWIRL effect: mess if Center out of Region.
ffbf279e 06/30/2016 01:06 PM Leszek Koltunski

revert latest changes to the fragment shader.
small things in DistortedObjects.
2e75bd79 06/29/2016 11:53 PM Leszek Koltunski

some improvements for the way we test DistortedObjects.
4018b3b7 06/29/2016 08:57 PM Leszek Koltunski

fix fragment effects :)
2dacdeb2 06/29/2016 04:15 PM Leszek Koltunski

remove the 'Color' vertex attribute.

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