1 files changed, 0 insertions, 74 deletions
diff --git a/source/blender/draw/engines/gpencil/shaders/fx/gpencil_fx_swirl_frag.glsl b/source/blender/draw/engines/gpencil/shaders/fx/gpencil_fx_swirl_frag.glsl
deleted file mode 100644
index 01d4fe40195..00000000000
--- a/source/blender/draw/engines/gpencil/shaders/fx/gpencil_fx_swirl_frag.glsl
+++ /dev/null
@@ -1,74 +0,0 @@
-uniform mat4 ProjectionMatrix;
-uniform mat4 ViewMatrix;
-
-uniform sampler2D strokeColor;
-uniform sampler2D strokeDepth;
-
-uniform vec2 Viewport;
-uniform vec3 loc;
-uniform int radius;
-uniform float angle;
-uniform int transparent;
-
-uniform float pixsize; /* rv3d->pixsize */
-uniform float pixfactor;
-
-out vec4 FragColor;
-
-float defaultpixsize = pixsize * (1000.0 / pixfactor);
-
-/* project 3d point to 2d on screen space */
-vec2 toScreenSpace(vec4 vertex)
-{
-  /* need to calculate ndc because this is not done by vertex shader */
-  vec3 ndc = vec3(vertex).xyz / vertex.w;
-
-  vec2 sc;
-  sc.x = ((ndc.x + 1.0) / 2.0) * Viewport.x;
-  sc.y = ((ndc.y + 1.0) / 2.0) * Viewport.y;
-
-  return sc;
-}
-
-/* This swirl shader is a modified version of original Geeks3d.com code */
-void main()
-{
-  vec2 uv = vec2(gl_FragCoord.xy);
-  float stroke_depth;
-  vec4 outcolor;
-
-  vec4 center3d = ProjectionMatrix * ViewMatrix * vec4(loc.xyz, 1.0);
-  vec2 center = toScreenSpace(center3d);
-  vec2 tc = uv - center;
-
-  float dist = length(tc);
-  float locpixsize = abs((loc.z * defaultpixsize));
-  if (locpixsize == 0) {
-    locpixsize = 1;
-  }
-  float pxradius = (ProjectionMatrix[3][3] == 0.0) ? (radius / locpixsize) :
-                                                     (radius / defaultpixsize);
-  pxradius = max(pxradius, 1);
-
-  if (dist <= pxradius) {
-    float percent = (pxradius - dist) / pxradius;
-    float theta = percent * percent * angle * 8.0;
-    float s = sin(theta);
-    float c = cos(theta);
-    tc = vec2(dot(tc, vec2(c, -s)), dot(tc, vec2(s, c)));
-    tc += center;
-
-    stroke_depth = texelFetch(strokeDepth, ivec2(tc), 0).r;
-    outcolor = texelFetch(strokeColor, ivec2(tc), 0);
-  }
-  else {
-    if (transparent == 1) {
-      discard;
-    }
-    stroke_depth = texelFetch(strokeDepth, ivec2(uv), 0).r;
-    outcolor = texelFetch(strokeColor, ivec2(uv), 0);
-  }
-
-  gl_FragDepth = stroke_depth;
-  FragColor = outcolor;
-}