ilikecats/stk-code_catmod
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57 Commits

Author SHA1 Message Date
vlj
e5a5c78045 Use a big triangle instead of 2 to cover full screen. 
This allows to rasterize a single primitive instead of two, and avoid
trashing the cache between the 2 triangles drawing.
 2014-06-03 19:56:59 +02:00
vlj
e571afc43b Speed up SSAO again 
Use log2(xy) = log2(x) + log2(y), and approximate log2(alpha) =
log2(previous alpha) + .5.
Log2 is indeed a costly instruction.
 2014-06-03 03:41:05 +02:00
vlj
164ffa2b4f Spped up SSAO 
Avoid using cos/sin too much, use sum of cos/sin formula instead.
 2014-06-03 03:14:39 +02:00
Stephen Just
f4992b80fc Fix errors when compiling shaders with UBOs disabled 2014-05-19 09:57:31 -06:00
vlj
883b39591f Width and height are passed by UBO 2014-05-17 02:39:55 +02:00
vlj
229b461a6c SSAO: Less abrupt transition 2014-05-14 03:26:43 +02:00
vlj
1d4bcd5ade SSAO: Increase beta constant to avoid error 2014-05-14 02:27:17 +02:00
vlj
86c8b9f83d Some tweaking to make ssao more apparent 2014-05-14 02:12:18 +02:00
Vincent Lejeune
59484ea09a DS buffer is not linear and cant be mipmapped 
Use the method provided by SAO paper (ie convert to linear and then
mipmap)
 2014-05-13 19:40:30 +02:00
vlj
26d48cdad0 SSAO: Stronger blur + tweak param 
Use another algorithm to have gaussian blur that lets us customise
radius more easily.
 2014-05-12 23:59:17 +02:00
vlj
8e17ae90b6 Resolution independent ssao 2014-05-12 20:13:12 +02:00
vlj
23ba597a1c SSAO: Use int rounding 2014-05-12 18:39:33 +02:00
vlj
229b72f84a Render SSAO at fullscreen resolution. 2014-05-12 01:06:33 +02:00
vlj
4fcec02123 Remove ssao depth guard. 2014-05-12 00:34:44 +02:00
vlj
7e1625da5e Tweak SSAO params. 2014-05-12 00:30:36 +02:00
vlj
f8544493b6 Improve SSAO perf 2014-05-12 00:14:50 +02:00
vlj
11b7d20ad8 Use the mipmap trick to speed up ssao. 2014-05-12 00:03:42 +02:00
Vincent Lejeune
567974aeed Use dFdX/dFdY to compute normals in SSAO. 2014-05-11 18:09:48 +02:00
Vincent Lejeune
e5410e23a2 Use Alchemy SSAO 2014-05-11 18:00:30 +02:00
vlj
2a1623d8ca Use a more efficient screen to view conversion 
Also use the opportunity to use UBO where possible.
 2014-05-02 18:11:34 +02:00
Vincent Lejeune
da15aebcda SSAO: Clamp to 0. 2014-04-22 18:22:39 +02:00
vlj
878a639a84 Another ssao tweak. 2014-04-20 02:56:07 +02:00
Vincent Lejeune
123a192963 Use half res FBO for SSAO 
SSAO is a medium frequency effect, using half res fbo is fine and
improve performance and look by doing an additionnal bilinear filtering.
Also tune up some values.
 2014-04-14 01:01:36 +02:00
Vincent Lejeune
01b88fde9d Factorize DecodeNormal from misc shaders. 2014-03-21 18:17:21 +01:00
Vincent Lejeune
da4896c3d8 SSAO: tweak fade distance. 2014-03-01 22:50:22 +01:00
Vincent Lejeune
af862cb6c5 #version autoadded to shaders and turn some v120 2014-02-28 17:29:05 +01:00
Vincent Lejeune
0243546e4d Use an openGL 3.3 compatibility context when available. 2014-02-12 22:16:10 +01:00
Vincent Lejeune
f50e6f817d Use another normal encoding method from a crytek slide. 2014-01-27 23:29:46 +01:00
Vincent Lejeune
0b531b20f7 SSAO: Use depth buffer. 2014-01-27 20:24:57 +01:00
Vincent Lejeune
ac8a729bcd SSAO: Actually simplifying code was a mistake. 2014-01-27 00:56:58 +01:00
Vincent Lejeune
684d265924 SSAO: Disable alpha test and simplify code 2014-01-27 00:53:52 +01:00
Vincent Lejeune
993d1e26dc Revert "SSAO: Remove the strenght parameter" 
This reverts commit b92f0b6ecc.
 2014-01-27 00:52:20 +01:00
Vincent Lejeune
63882318a7 SSAO: Fix typo and use 16 samples 2014-01-27 00:47:35 +01:00
Vincent Lejeune
b92f0b6ecc SSAO: Remove the strenght parameter 2014-01-27 00:41:41 +01:00
Vincent Lejeune
31991ecd7e SSAO: Improve randomness using NEAREST filtering 2014-01-27 00:09:36 +01:00
Marianne Gagnon
30011be115 My tweaks to SSAO, to improve randomness and final blending 2014-01-25 22:03:47 -05:00
Vincent Lejeune
ceb1fdc88a SSAO: Use a single texture fetch for random. 2014-01-20 20:43:03 +01:00
Vincent Lejeune
32836cf93d Use 8 samples instead of 16 2014-01-19 20:57:58 +01:00
Vincent Lejeune
859be83074 Explicitly define fragment exported values. 2014-01-19 19:31:00 +01:00
Vincent Lejeune
fb6649eaad texture2D is deprecated, use texture instead 2014-01-19 18:53:35 +01:00
Vincent Lejeune
d6d8301f17 SSAO: Use a noise texture rather than a function 2014-01-19 18:20:57 +01:00
Vincent Lejeune
787866909d SSAO: Do not use trilinear filtering 
Normals RTT is not mipmapped and thus bad things happened above a
certain value in the depth buffer because of trilinear filtering.
 2014-01-17 23:59:08 +01:00
vincentlj
f338fbacb1 SSAO: Use a proper rand() function to generate fragment local coordinate system. 
This new level of randomness get rid of most banding effect, SSAO now looks quite good.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@15072 178a84e3-b1eb-0310-8ba1-8eac791a3b58
 2014-01-14 14:22:01 +00:00
vincentlj
c88d89a4f0 SSAO: Some tweaks. 
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@15059 178a84e3-b1eb-0310-8ba1-8eac791a3b58
 2014-01-13 18:59:59 +00:00
vincentlj
2ba340b6cb OGL32CTX: Add vertex shader where default one was assumed. 
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14973 178a84e3-b1eb-0310-8ba1-8eac791a3b58
 2014-01-08 23:11:10 +00:00
vincentlj
fa068d7810 OGL32CTX: Ask #version 130 for all our shaders 
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14919 178a84e3-b1eb-0310-8ba1-8eac791a3b58
 2014-01-05 00:08:00 +00:00
samuncle
067564c7cf A little change to make the SSAO better (IMHO) other opinions are welcome) 
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14795 178a84e3-b1eb-0310-8ba1-8eac791a3b58
 2013-12-26 02:55:10 +00:00
vincentlj
bd52770ceb SSAO: Avoid sampling outside of RTT_NORMAL_AND_DEPTH textures. 
It should remove artifact at the edge of the screen.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14767 178a84e3-b1eb-0310-8ba1-8eac791a3b58
 2013-12-24 00:37:58 +00:00
vincentlj
f17f8b62cb SSAO: Use the correct distance for range checking 
It should remove halo around kart heads.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14763 178a84e3-b1eb-0310-8ba1-8eac791a3b58
 2013-12-23 23:25:14 +00:00
vincentlj
3fc63a9f27 SSAO:Ensure sampled point are inside the unit sphere. 
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14760 178a84e3-b1eb-0310-8ba1-8eac791a3b58
 2013-12-23 20:25:58 +00:00