From 0691826e0775ae1023d1652972c1c71145a42769 Mon Sep 17 00:00:00 2001
From: Kyle McLamb <kjmclamb@gmail.com>
Date: Sat, 30 Apr 2016 09:37:28 -0400
Subject: [PATCH] Store shaders as lua strings

---
 lib/body.lua                                           |  4 ++--
 lib/init.lua                                           |  8 ++++----
 lib/postshader.lua                                     |  7 ++++---
 lib/shaders/{glow.glsl => glow.lua}                    |  2 ++
 lib/shaders/{image_mask.glsl => image_mask.lua}        |  2 ++
 lib/shaders/{material.glsl => material.lua}            |  4 +++-
 .../{black_and_white.glsl => black_and_white.lua}      |  6 ++++--
 lib/shaders/postshaders/{blurh.glsl => blurh.lua}      |  2 ++
 lib/shaders/postshaders/{blurv.glsl => blurv.lua}      |  2 ++
 ...omatic_aberration.glsl => chromatic_aberration.lua} |  2 ++
 .../postshaders/{contrast.glsl => contrast.lua}        |  2 ++
 .../postshaders/{curvature.glsl => curvature.lua}      |  2 ++
 lib/shaders/postshaders/{edges.glsl => edges.lua}      |  8 ++++----
 .../postshaders/{four_colors.glsl => four_colors.lua}  |  4 +++-
 lib/shaders/postshaders/{hdr_tv.glsl => hdr_tv.lua}    |  4 +++-
 .../postshaders/{monochrome.glsl => monochrome.lua}    |  6 ++++--
 .../postshaders/{phosphor.glsl => phosphor.lua}        |  4 +++-
 .../postshaders/{phosphorish.glsl => phosphorish.lua}  |  3 ++-
 lib/shaders/postshaders/{pip.glsl => pip.lua}          |  7 ++++---
 .../postshaders/{pixellate.glsl => pixellate.lua}      |  2 ++
 .../postshaders/{radialblur.glsl => radialblur.lua}    |  2 ++
 .../postshaders/{scanlines.glsl => scanlines.lua}      |  2 ++
 .../postshaders/{tilt_shift.glsl => tilt_shift.lua}    |  2 ++
 .../postshaders/{waterpaint.glsl => waterpaint.lua}    | 10 ++++++----
 lib/shaders/{reflection.glsl => reflection.lua}        |  2 ++
 lib/shaders/{refraction.glsl => refraction.lua}        |  2 ++
 lib/shaders/{shadow.glsl => shadow.lua}                |  3 ++-
 27 files changed, 74 insertions(+), 30 deletions(-)
 rename lib/shaders/{glow.glsl => glow.lua} (97%)
 rename lib/shaders/{image_mask.glsl => image_mask.lua} (93%)
 rename lib/shaders/{material.glsl => material.lua} (93%)
 rename lib/shaders/postshaders/{black_and_white.glsl => black_and_white.lua} (94%)
 rename lib/shaders/postshaders/{blurh.glsl => blurh.lua} (97%)
 rename lib/shaders/postshaders/{blurv.glsl => blurv.lua} (97%)
 rename lib/shaders/postshaders/{chromatic_aberration.glsl => chromatic_aberration.lua} (97%)
 rename lib/shaders/postshaders/{contrast.glsl => contrast.lua} (92%)
 rename lib/shaders/postshaders/{curvature.glsl => curvature.lua} (97%)
 rename lib/shaders/postshaders/{edges.glsl => edges.lua} (98%)
 rename lib/shaders/postshaders/{four_colors.glsl => four_colors.lua} (94%)
 rename lib/shaders/postshaders/{hdr_tv.glsl => hdr_tv.lua} (89%)
 rename lib/shaders/postshaders/{monochrome.glsl => monochrome.lua} (84%)
 rename lib/shaders/postshaders/{phosphor.glsl => phosphor.lua} (99%)
 rename lib/shaders/postshaders/{phosphorish.glsl => phosphorish.lua} (98%)
 rename lib/shaders/postshaders/{pip.glsl => pip.lua} (94%)
 rename lib/shaders/postshaders/{pixellate.glsl => pixellate.lua} (95%)
 rename lib/shaders/postshaders/{radialblur.glsl => radialblur.lua} (96%)
 rename lib/shaders/postshaders/{scanlines.glsl => scanlines.lua} (98%)
 rename lib/shaders/postshaders/{tilt_shift.glsl => tilt_shift.lua} (96%)
 rename lib/shaders/postshaders/{waterpaint.glsl => waterpaint.lua} (96%)
 rename lib/shaders/{reflection.glsl => reflection.lua} (98%)
 rename lib/shaders/{refraction.glsl => refraction.lua} (98%)
 rename lib/shaders/{shadow.glsl => shadow.lua} (99%)

diff --git a/lib/body.lua b/lib/body.lua
index 52a12c8..b0592ba 100644
--- a/lib/body.lua
+++ b/lib/body.lua
@@ -7,8 +7,8 @@ local vector      = require(_PACKAGE..'/vector')
 local body        = {}
 body.__index = body
 
-body.glowShader     = love.graphics.newShader(_PACKAGE.."/shaders/glow.glsl")
-body.materialShader = love.graphics.newShader(_PACKAGE.."/shaders/material.glsl")
+body.glowShader     = love.graphics.newShader(require(_PACKAGE..".shaders.glow"))
+body.materialShader = love.graphics.newShader(require(_PACKAGE..".shaders.material"))
 
 local function new(id, type, ...)
 	local args = {...}
diff --git a/lib/init.lua b/lib/init.lua
index 130f1a1..8c60213 100644
--- a/lib/init.lua
+++ b/lib/init.lua
@@ -31,10 +31,10 @@ local PostShader = require(_PACKAGE..'postshader')
 local light_world = {}
 light_world.__index = light_world
 
-light_world.image_mask       = love.graphics.newShader(_PACKAGE.."/shaders/image_mask.glsl")
-light_world.shadowShader     = love.graphics.newShader(_PACKAGE.."/shaders/shadow.glsl")
-light_world.refractionShader = love.graphics.newShader(_PACKAGE.."shaders/refraction.glsl")
-light_world.reflectionShader = love.graphics.newShader(_PACKAGE.."shaders/reflection.glsl")
+light_world.image_mask       = love.graphics.newShader(require(_PACKAGE.."shaders.image_mask"))
+light_world.shadowShader     = love.graphics.newShader(require(_PACKAGE.."shaders.shadow"))
+light_world.refractionShader = love.graphics.newShader(require(_PACKAGE.."shaders.refraction"))
+light_world.reflectionShader = love.graphics.newShader(require(_PACKAGE.."shaders.reflection"))
 
 local function new(options)
   local obj = {}
diff --git a/lib/postshader.lua b/lib/postshader.lua
index efcc6d5..46368bf 100644
--- a/lib/postshader.lua
+++ b/lib/postshader.lua
@@ -31,15 +31,16 @@ local files = love.filesystem.getDirectoryItems(_PACKAGE.."/shaders/postshaders"
 local shaders = {}
 	
 for i,v in ipairs(files) do
-  local name = _PACKAGE.."/shaders/postshaders".."/"..v
+  local name = _PACKAGE.."/shaders/postshaders/"..v
+  local module = _PACKAGE..".shaders.postshaders."..v:gsub("%.lua","")
   if love.filesystem.isFile(name) then
     local str = love.filesystem.read(name)
-    local effect = love.graphics.newShader(name)
+    local effect = love.graphics.newShader(require(module))
     local defs = {}
     for vtype, extern in str:gmatch("extern (%w+) (%w+)") do
       defs[extern] = true
     end
-    local shaderName = name:match(".-([^\\|/]-[^%.]+)$"):gsub("%.glsl", "")
+    local shaderName = name:match(".-([^\\|/]-[^%.]+)$"):gsub("%.lua", "")
     shaders[shaderName] = {effect, defs}
   end
 end
diff --git a/lib/shaders/glow.glsl b/lib/shaders/glow.lua
similarity index 97%
rename from lib/shaders/glow.glsl
rename to lib/shaders/glow.lua
index 2e302ce..1b17fa4 100644
--- a/lib/shaders/glow.glsl
+++ b/lib/shaders/glow.lua
@@ -1,3 +1,4 @@
+return [[//
 extern Image glowImage;
 extern float glowTime;
 
@@ -17,3 +18,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
 	
 	return vec4(Texel(texture, texture_coords).rgb * glowInfo.r, 1.0);
 }
+]]
diff --git a/lib/shaders/image_mask.glsl b/lib/shaders/image_mask.lua
similarity index 93%
rename from lib/shaders/image_mask.glsl
rename to lib/shaders/image_mask.lua
index 196f00d..3567aed 100644
--- a/lib/shaders/image_mask.glsl
+++ b/lib/shaders/image_mask.lua
@@ -1,6 +1,8 @@
+return [[//
 //https://love2d.org/wiki/love.graphics.setStencil image mask
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 screen_coords) {
   if (Texel(texture, texture_coords).rgb == vec3(0.0))
     discard;
   return vec4(1.0);
 }
+]]
diff --git a/lib/shaders/material.glsl b/lib/shaders/material.lua
similarity index 93%
rename from lib/shaders/material.glsl
rename to lib/shaders/material.lua
index ea8f8c1..ed2814c 100644
--- a/lib/shaders/material.glsl
+++ b/lib/shaders/material.lua
@@ -1,3 +1,4 @@
+return [[//
 extern Image material;
 
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
@@ -7,4 +8,5 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
 	} else {
 		return vec4(0.0);
 	}
-}
\ No newline at end of file
+}
+]]
diff --git a/lib/shaders/postshaders/black_and_white.glsl b/lib/shaders/postshaders/black_and_white.lua
similarity index 94%
rename from lib/shaders/postshaders/black_and_white.glsl
rename to lib/shaders/postshaders/black_and_white.lua
index cf90ee8..3090d8b 100644
--- a/lib/shaders/postshaders/black_and_white.glsl
+++ b/lib/shaders/postshaders/black_and_white.lua
@@ -1,13 +1,15 @@
+return [[//
 extern float exposure = 0.7;
 extern float brightness = 1.0;
 extern vec3 lumacomponents = vec3(1.0, 1.0, 1.0);
 const vec3 lumcoeff = vec3(0.212671, 0.715160, 0.072169);
 
-vec4 effect(vec4 vcolor, Image texture, vec2 texcoord, vec2 pixel_coords) {	
+vec4 effect(vec4 vcolor, Image texture, vec2 texcoord, vec2 pixel_coords) {
 	vec4 input0 = Texel(texture, texcoord);
 	input0 *= (exp2(input0)*vec4(exposure));
 	vec4 lumacomponents = vec4(lumcoeff * lumacomponents, 0.0 );
 	float luminance = dot(input0,lumacomponents);
 	vec4 luma = vec4(luminance);
 	return vec4(luma.rgb * brightness, 1.0);
-} 
+}
+]]
diff --git a/lib/shaders/postshaders/blurh.glsl b/lib/shaders/postshaders/blurh.lua
similarity index 97%
rename from lib/shaders/postshaders/blurh.glsl
rename to lib/shaders/postshaders/blurh.lua
index ae58eff..2961190 100644
--- a/lib/shaders/postshaders/blurh.glsl
+++ b/lib/shaders/postshaders/blurh.lua
@@ -1,3 +1,4 @@
+return [[//
 extern float steps = 2.0;
 
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
@@ -10,3 +11,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
 	col = col / (steps * 2.0 + 1.0);
 	return vec4(col.r, col.g, col.b, 1.0);
 }
+]]
diff --git a/lib/shaders/postshaders/blurv.glsl b/lib/shaders/postshaders/blurv.lua
similarity index 97%
rename from lib/shaders/postshaders/blurv.glsl
rename to lib/shaders/postshaders/blurv.lua
index 00b929e..7033c94 100644
--- a/lib/shaders/postshaders/blurv.glsl
+++ b/lib/shaders/postshaders/blurv.lua
@@ -1,3 +1,4 @@
+return [[//
 extern float steps = 2.0;
 
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
@@ -10,3 +11,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
 	col = col / (steps * 2.0 + 1.0);
 	return vec4(col.r, col.g, col.b, 1.0);
 }
+]]
diff --git a/lib/shaders/postshaders/chromatic_aberration.glsl b/lib/shaders/postshaders/chromatic_aberration.lua
similarity index 97%
rename from lib/shaders/postshaders/chromatic_aberration.glsl
rename to lib/shaders/postshaders/chromatic_aberration.lua
index a86ade2..2f05102 100644
--- a/lib/shaders/postshaders/chromatic_aberration.glsl
+++ b/lib/shaders/postshaders/chromatic_aberration.lua
@@ -1,3 +1,4 @@
+return [[//
 extern vec2 redStrength = vec2(4.0, 3.0);
 extern vec2 greenStrength = vec2(-2.0, -1.0);
 extern vec2 blueStrength = vec2(1.0, -3.0);
@@ -10,3 +11,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
 
 	return vec4(colRed, colGreen, colBlue, 1.0);
 }
+]]
diff --git a/lib/shaders/postshaders/contrast.glsl b/lib/shaders/postshaders/contrast.lua
similarity index 92%
rename from lib/shaders/postshaders/contrast.glsl
rename to lib/shaders/postshaders/contrast.lua
index dea0d10..b9ae362 100644
--- a/lib/shaders/postshaders/contrast.glsl
+++ b/lib/shaders/postshaders/contrast.lua
@@ -1,5 +1,7 @@
+return [[//
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
 	vec3 col = Texel(texture, texture_coords).rgb * 2.0;
 	col *= col;
 	return vec4(col, 1.0);
 }
+]]
diff --git a/lib/shaders/postshaders/curvature.glsl b/lib/shaders/postshaders/curvature.lua
similarity index 97%
rename from lib/shaders/postshaders/curvature.glsl
rename to lib/shaders/postshaders/curvature.lua
index 79f0e30..fcfebd3 100644
--- a/lib/shaders/postshaders/curvature.glsl
+++ b/lib/shaders/postshaders/curvature.lua
@@ -1,3 +1,4 @@
+return [[//
 #define distortion 0.2
 vec2 radialDistortion(vec2 coord) {
   vec2 cc = coord - 0.5;
@@ -16,3 +17,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
   texcolor.a = 1.0;
   return texcolor;
 }
+]]
diff --git a/lib/shaders/postshaders/edges.glsl b/lib/shaders/postshaders/edges.lua
similarity index 98%
rename from lib/shaders/postshaders/edges.glsl
rename to lib/shaders/postshaders/edges.lua
index c8add09..051e3a2 100644
--- a/lib/shaders/postshaders/edges.glsl
+++ b/lib/shaders/postshaders/edges.lua
@@ -1,8 +1,9 @@
+return [[//
 /*
     Edge shader
     Author: Themaister
     License: Public domain.
-    
+
     modified by slime73 for use with love2d and mari0
 */
 
@@ -10,7 +11,7 @@ vec3 grayscale(vec3 color)
 {
 	return vec3(dot(color, vec3(0.3, 0.59, 0.11)));
 }
- 
+
 vec4 effect(vec4 vcolor, Image texture, vec2 tex, vec2 pixel_coords)
 {
 	vec4 texcolor = Texel(texture, tex);
@@ -35,5 +36,4 @@ vec4 effect(vec4 vcolor, Image texture, vec2 tex, vec2 pixel_coords)
 	vec4 final = vec4(5.0 * grayscale(abs(res - c11)), 1.0);
 	return clamp(final, 0.0, 1.0);
 }
-
-
+]]
diff --git a/lib/shaders/postshaders/four_colors.glsl b/lib/shaders/postshaders/four_colors.lua
similarity index 94%
rename from lib/shaders/postshaders/four_colors.glsl
rename to lib/shaders/postshaders/four_colors.lua
index c68b1cf..d6e58e8 100644
--- a/lib/shaders/postshaders/four_colors.glsl
+++ b/lib/shaders/postshaders/four_colors.lua
@@ -1,3 +1,4 @@
+return [[//
 extern vec3 palette[4];
 
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
@@ -5,4 +6,5 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
 	int index = int(min(0.9999, max(0.0001,(pixel.r + pixel.g + pixel.b) / 3.0)) * 4);
 
 	return vec4(palette[index], 1.0);
-}
\ No newline at end of file
+}
+]]
diff --git a/lib/shaders/postshaders/hdr_tv.glsl b/lib/shaders/postshaders/hdr_tv.lua
similarity index 89%
rename from lib/shaders/postshaders/hdr_tv.glsl
rename to lib/shaders/postshaders/hdr_tv.lua
index ba5e30b..fdb64a1 100644
--- a/lib/shaders/postshaders/hdr_tv.glsl
+++ b/lib/shaders/postshaders/hdr_tv.lua
@@ -1,8 +1,10 @@
+return [[//
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
 	vec4 rgb = Texel(texture, texture_coords);
 	vec4 intens = smoothstep(0.2,0.8,rgb) + normalize(vec4(rgb.xyz, 1.0));
 
 	if (fract(pixel_coords.y * 0.5) > 0.5) intens = rgb * 0.8;
 	intens.a = 1.0;
-    return intens;
+	return intens;
 }
+]]
diff --git a/lib/shaders/postshaders/monochrome.glsl b/lib/shaders/postshaders/monochrome.lua
similarity index 84%
rename from lib/shaders/postshaders/monochrome.glsl
rename to lib/shaders/postshaders/monochrome.lua
index d4bc55b..e08dd0d 100644
--- a/lib/shaders/postshaders/monochrome.glsl
+++ b/lib/shaders/postshaders/monochrome.lua
@@ -1,13 +1,15 @@
+return [[//
 extern float time = 0.0;
 extern vec3 tint = vec3(1.0, 1.0, 1.0);
 extern float fudge = 0.1;
 
 float rand(vec2 position, float seed) {
-   return fract(sin(dot(position.xy,vec2(12.9898, 78.233))) * seed);
+	return fract(sin(dot(position.xy,vec2(12.9898, 78.233))) * seed);
 }
 
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
 	vec4 pixel = Texel(texture, texture_coords);
 	float intensity = (pixel.r + pixel.g + pixel.b) / 3.0 + (rand(texture_coords, time) - 0.5) * fudge;
 	return vec4(intensity * tint.r, intensity * tint.g, intensity * tint.b, 1.0);
-}
\ No newline at end of file
+}
+]]
diff --git a/lib/shaders/postshaders/phosphor.glsl b/lib/shaders/postshaders/phosphor.lua
similarity index 99%
rename from lib/shaders/postshaders/phosphor.glsl
rename to lib/shaders/postshaders/phosphor.lua
index cf58451..f600e86 100644
--- a/lib/shaders/postshaders/phosphor.glsl
+++ b/lib/shaders/postshaders/phosphor.lua
@@ -1,3 +1,4 @@
+return [[//
 /*
 	caligari's scanlines
 
@@ -13,7 +14,7 @@
 
 		http://board.byuu.org/viewtopic.php?p=36219#p36219
 
-		"As I said to Hyllian by PM, I'm fine with the GPL (not really a bi
+		"As I said to Hyllian by PM, I'm fine with the GPL (not really a big
 		deal...)"
    )
 */
@@ -155,3 +156,4 @@ vec4 effect(vec4 vcolor, Image texture, vec2 texCoord, vec2 pixel_coords)
 
 	return clamp(GAMMA_OUT(color), 0.0, 1.0);
 }
+]]
diff --git a/lib/shaders/postshaders/phosphorish.glsl b/lib/shaders/postshaders/phosphorish.lua
similarity index 98%
rename from lib/shaders/postshaders/phosphorish.glsl
rename to lib/shaders/postshaders/phosphorish.lua
index 5449cbd..bde9e15 100644
--- a/lib/shaders/postshaders/phosphorish.glsl
+++ b/lib/shaders/postshaders/phosphorish.lua
@@ -1,3 +1,4 @@
+return [[//
 /*
    Plain (and obviously inaccurate) phosphor.
    Author: Themaister
@@ -42,4 +43,4 @@ vec4 effect(vec4 vcolor, Image texture, vec2 texture_coords, vec2 pixel_coords)
 
 	return vec4(intensity * result, 1.0);
 }
-
+]]
diff --git a/lib/shaders/postshaders/pip.glsl b/lib/shaders/postshaders/pip.lua
similarity index 94%
rename from lib/shaders/postshaders/pip.glsl
rename to lib/shaders/postshaders/pip.lua
index 56e9b7e..bfbc118 100644
--- a/lib/shaders/postshaders/pip.glsl
+++ b/lib/shaders/postshaders/pip.lua
@@ -1,3 +1,4 @@
+return [[//
 #define glarebasesize 0.896
 #define power 0.50
 extern float time;
@@ -12,7 +13,7 @@ float luminance(vec3 color)
 float scanline(float ypos)
 {
 
-	float c = mod(time * 3.0 + ypos * 5.0, 15.0);	
+	float c = mod(time * 3.0 + ypos * 5.0, 15.0);
 	return 1.0 - smoothstep(0.0, 1.0, c);
 }
 
@@ -35,7 +36,7 @@ vec4 effect(vec4 vcolor, Image texture, vec2 texcoord, vec2 pixel_coords)
 		for (j = -1; j < 1; j++)
 		{
 			sum += Texel(texture, texcoord + vec2(-i, j)*glaresize) * power;
-			bum += Texel(texture, texcoord + vec2(j, i)*glaresize) * power;            
+			bum += Texel(texture, texcoord + vec2(j, i)*glaresize) * power;
 		}
 	}
 	
@@ -59,4 +60,4 @@ vec4 effect(vec4 vcolor, Image texture, vec2 texcoord, vec2 pixel_coords)
 	
 	return finalcolor;
 }
-
+]]
diff --git a/lib/shaders/postshaders/pixellate.glsl b/lib/shaders/postshaders/pixellate.lua
similarity index 95%
rename from lib/shaders/postshaders/pixellate.glsl
rename to lib/shaders/postshaders/pixellate.lua
index 6a7935e..d5dc8ed 100644
--- a/lib/shaders/postshaders/pixellate.glsl
+++ b/lib/shaders/postshaders/pixellate.lua
@@ -1,3 +1,4 @@
+return [[//
 const float pixel_w = 2.0;
 const float pixel_h = 2.0;
 
@@ -8,3 +9,4 @@ vec4 effect(vec4 vcolor, Image texture, vec2 uv, vec2 pixel_coords)
 	vec2 coord = vec2(dx*floor(uv.x/dx), dy*floor(uv.y/dy));
 	return Texel(texture, coord);
 }
+]]
diff --git a/lib/shaders/postshaders/radialblur.glsl b/lib/shaders/postshaders/radialblur.lua
similarity index 96%
rename from lib/shaders/postshaders/radialblur.glsl
rename to lib/shaders/postshaders/radialblur.lua
index 5c2a032..1299932 100644
--- a/lib/shaders/postshaders/radialblur.glsl
+++ b/lib/shaders/postshaders/radialblur.lua
@@ -1,3 +1,4 @@
+return [[//
 #define nsamples 5
 extern number blurstart = 1.0; // 0 to 1
 extern number blurwidth = -0.02; // -1 to 1
@@ -18,3 +19,4 @@ vec4 effect(vec4 vcolor, Image texture, vec2 texture_coords, vec2 pixel_coords)
 	
 	return c;
 }
+]]
diff --git a/lib/shaders/postshaders/scanlines.glsl b/lib/shaders/postshaders/scanlines.lua
similarity index 98%
rename from lib/shaders/postshaders/scanlines.glsl
rename to lib/shaders/postshaders/scanlines.lua
index 1e460d4..d980cba 100644
--- a/lib/shaders/postshaders/scanlines.glsl
+++ b/lib/shaders/postshaders/scanlines.lua
@@ -1,3 +1,4 @@
+return [[//
 extern float strength = 2.0;
 extern float time = 0.0;
 
@@ -30,3 +31,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
 		return vec4(vec3(red * 0.75, green * 0.75, blue * 0.75) * brightness, 1.0);
 	}
 }
+]]
diff --git a/lib/shaders/postshaders/tilt_shift.glsl b/lib/shaders/postshaders/tilt_shift.lua
similarity index 96%
rename from lib/shaders/postshaders/tilt_shift.glsl
rename to lib/shaders/postshaders/tilt_shift.lua
index 911878c..788c1dd 100644
--- a/lib/shaders/postshaders/tilt_shift.glsl
+++ b/lib/shaders/postshaders/tilt_shift.lua
@@ -1,3 +1,4 @@
+return [[//
 extern Image imgBuffer;
 
 vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
@@ -10,3 +11,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
 		return vec4(pixel.rgb * (0.5 - texture_coords.y) * 2.0 + pixelBuffer.rgb * texture_coords.y * 2.0, 1.0);
 	}
 }
+]]
diff --git a/lib/shaders/postshaders/waterpaint.glsl b/lib/shaders/postshaders/waterpaint.lua
similarity index 96%
rename from lib/shaders/postshaders/waterpaint.glsl
rename to lib/shaders/postshaders/waterpaint.lua
index 8c44c92..acb7fe4 100644
--- a/lib/shaders/postshaders/waterpaint.glsl
+++ b/lib/shaders/postshaders/waterpaint.lua
@@ -1,22 +1,23 @@
+return [[//
 /*
      Themaister's Waterpaint shader
 
-     Placed in the public domain. 
+     Placed in the public domain.
 
      (From this thread: http://board.byuu.org/viewtopic.php?p=30483#p30483 
      PD declaration here: http://board.byuu.org/viewtopic.php?p=30542#p30542 )
-     
+
      modified by slime73 for use with love2d and mari0
 */
 
- 
+
 vec4 compress(vec4 in_color, float threshold, float ratio)
 {
 	vec4 diff = in_color - vec4(threshold);
 	diff = clamp(diff, 0.0, 100.0);
 	return in_color - (diff * (1.0 - 1.0/ratio));
 }
- 
+
 vec4 effect(vec4 vcolor, Image texture, vec2 tex, vec2 pixel_coords)
 {
 	float x = 0.5 * (1.0 / love_ScreenSize.x);
@@ -53,3 +54,4 @@ vec4 effect(vec4 vcolor, Image texture, vec2 tex, vec2 pixel_coords)
 	
 	return final;
 }
+]]
diff --git a/lib/shaders/reflection.glsl b/lib/shaders/reflection.lua
similarity index 98%
rename from lib/shaders/reflection.glsl
rename to lib/shaders/reflection.lua
index 16c14e9..2a19152 100644
--- a/lib/shaders/reflection.glsl
+++ b/lib/shaders/reflection.lua
@@ -1,3 +1,4 @@
+return [[//
 extern Image backBuffer;
 
 extern float reflectionStrength;
@@ -21,3 +22,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
 		return vec4(0.0);
 	}
 }
+]]
diff --git a/lib/shaders/refraction.glsl b/lib/shaders/refraction.lua
similarity index 98%
rename from lib/shaders/refraction.glsl
rename to lib/shaders/refraction.lua
index 8ded775..0a4beb9 100644
--- a/lib/shaders/refraction.glsl
+++ b/lib/shaders/refraction.lua
@@ -1,3 +1,4 @@
+return [[//
 extern Image backBuffer;
 
 extern float refractionStrength = 1.0;
@@ -16,3 +17,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
 		return vec4(0.0);
 	}
 }
+]]
diff --git a/lib/shaders/shadow.glsl b/lib/shaders/shadow.lua
similarity index 99%
rename from lib/shaders/shadow.glsl
rename to lib/shaders/shadow.lua
index 5bae828..29ecdde 100644
--- a/lib/shaders/shadow.glsl
+++ b/lib/shaders/shadow.lua
@@ -1,3 +1,4 @@
+return [[//
 /*
     Copyright (c) 2014 Tim Anema
     light shadow, shine and normal shader all in one
@@ -47,4 +48,4 @@ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
     return pixel;
   }
 }
-
+]]