diff options
Diffstat (limited to 'system/shaders/convolution-6x6.glsl')
| -rw-r--r-- | system/shaders/convolution-6x6.glsl | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/system/shaders/convolution-6x6.glsl b/system/shaders/convolution-6x6.glsl index b440974f70..f791004490 100644 --- a/system/shaders/convolution-6x6.glsl +++ b/system/shaders/convolution-6x6.glsl @@ -1,4 +1,5 @@ uniform sampler2D img; +uniform sampler1D kernelTex; uniform float stepx; uniform float stepy; uniform float m_stretch; @@ -12,19 +13,14 @@ uniform float m_stretch; #endif #if (HAS_FLOAT_TEXTURE) -uniform sampler1D kernelTex; - half3 weight(float pos) { return texture1D(kernelTex, pos).rgb; } #else -uniform sampler2D kernelTex; - half3 weight(float pos) { - //row 0 contains the high byte, row 1 contains the low byte - return ((texture2D(kernelTex, vec2(pos, 0.0)) * 256.0 + texture2D(kernelTex, vec2(pos, 1.0)))).rgb / 128.5 - 1.0; + return texture1D(kernelTex, pos).rgb * 2.0 - 1.0; } #endif |