get rid of braid-rewind since slang doesn't support FrameDirection

motionblur/braid-rewind.slangp

@@ -1,5 +0,0 @@
-shaders = 1
-
-shader0 = shaders/braid-rewind.slang
-filter_linear0 = false
-scale_type_0 = source

motionblur/shaders/braid-rewind.slang

@@ -1,66 +0,0 @@
-#version 450
-/*
-    Braid Rewind
-    Authors: hunterk, cgwg
- 
-    This program is free software; you can redistribute it and/or modify it
-    under the terms of the GNU General Public License as published by the Free
-    Software Foundation; either version 2 of the License, or (at your option)
-    any later version.
-*/
-
-layout(std140, set = 0, binding = 0) uniform UBO
-{
-    mat4 MVP;
-    vec4 OutputSize;
-    vec4 OriginalSize;
-    vec4 SourceSize;
-    float FrameDirection
-} global;
-
-#pragma stage vertex
-layout(location = 0) in vec4 Position;
-layout(location = 1) in vec2 TexCoord;
-layout(location = 0) out vec2 vTexCoord;
-
-void main()
-{
-    gl_Position = global.MVP * Position;
-    vTexCoord   = TexCoord;
-}
-
-#pragma stage fragment
-layout(location = 0) in vec2 vTexCoord;
-layout(location = 0) out vec4 FragColor;
-layout(set = 0, binding = 2) uniform sampler2D Source;
-layout(set = 0, binding = 3) uniform sampler2D OriginalHistory1;
-layout(set = 0, binding = 4) uniform sampler2D OriginalHistory2;
-layout(set = 0, binding = 5) uniform sampler2D OriginalHistory3;
-layout(set = 0, binding = 6) uniform sampler2D OriginalHistory4;
-layout(set = 0, binding = 7) uniform sampler2D OriginalHistory5;
-layout(set = 0, binding = 8) uniform sampler2D OriginalHistory6;
-layout(set = 0, binding = 9) uniform sampler2D OriginalHistory7;
-
-void main()
-{
-    vec4 current = texture(Source, vTexCoord);
-
-    vec4 color = 
-        texture(OriginalHistory7, vTexCoord) +
-        texture(OriginalHistory6, vTexCoord) +
-        texture(OriginalHistory5, vTexCoord) +
-        texture(OriginalHistory4, vTexCoord) +
-        texture(OriginalHistory3, vTexCoord) +
-        texture(OriginalHistory2, vTexCoord) +
-        texture(OriginalHistory1, vTexCoord) +
-        current;
-
-    vec4 sepia = vec4(1.0, 0.8, 0.6, 1.0); 
-
-    if (global.FrameDirection < 0.0)
-    {
-        current = ((current + (color * 0.142857142857143)) * 0.5) * sepia;
-    }
-
-    FragColor = current;
-}