diff options
Diffstat (limited to 'engines/sludge/scale.frag')
-rw-r--r-- | engines/sludge/scale.frag | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/engines/sludge/scale.frag b/engines/sludge/scale.frag deleted file mode 100644 index 13558714ee..0000000000 --- a/engines/sludge/scale.frag +++ /dev/null @@ -1,60 +0,0 @@ -/* - Inspired by a shader by guest(r) - guest.r@gmail.com - that was found at - http://www.razyboard.com/system/morethread-smart-texture-mag-filter-for-ogl2-and-dosbox-pete_bernert-266904-5689051-0.html -*/ - -uniform sampler2D Texture; -uniform sampler2D lightTexture; -uniform bool antialias; -uniform bool useLightTexture; -uniform float scale; - -varying vec2 varCoord0; -varying vec2 varCoord1; - -varying vec4 color; -varying vec4 secondaryColor; - -void main() -{ - vec4 c11 = texture2D(Texture, varCoord0.xy); - - if (antialias) { - vec2 fw = fwidth(varCoord0.xy)*scale; - - vec2 sd1 = vec2( fw.x,fw.y); - vec2 sd2 = vec2(-fw.x,fw.y); - - vec4 s00 = texture2D(Texture, varCoord0.xy-sd1); - vec4 s20 = texture2D(Texture, varCoord0.xy-sd2); - vec4 s22 = texture2D(Texture, varCoord0.xy+sd1); - vec4 s02 = texture2D(Texture, varCoord0.xy+sd2); - - vec4 dt = vec4(1.0,1.0,1.0,1.0); - - float m1=dot(abs(s00-s22),dt)+0.0001; - float m2=dot(abs(s02-s20),dt)+0.0001; - - vec4 temp1 = m2*(s00 + s22) + m1*(s02 + s20); - - // gl_FragColor = (temp1/(m1+m2)) * 0.5; - c11 = c11*0.333333 + (temp1/(m1+m2)) * 0.333333; - } - /* - else { - gl_FragColor = c11; - }*/ - - //if (gl_FragColor.a<0.001) discard; - - vec3 col; - if (useLightTexture) { - vec4 texture1 = texture2D (lightTexture, varCoord1.xy); - col = texture1.rgb * c11.rgb; - } else { - col = color.rgb * c11.rgb; - } - col += vec3(secondaryColor); - gl_FragColor = vec4 (col, color.a * c11.a); -} - |