1 files changed, 0 insertions, 98 deletions
diff --git a/source/blender/gpu/shaders/gpu_shader_2D_edituvs_stretch_vert.glsl b/source/blender/gpu/shaders/gpu_shader_2D_edituvs_stretch_vert.glsl
deleted file mode 100644
index 3254a7e1508..00000000000
--- a/source/blender/gpu/shaders/gpu_shader_2D_edituvs_stretch_vert.glsl
+++ /dev/null
@@ -1,98 +0,0 @@
-
-uniform mat4 ModelViewProjectionMatrix;
-uniform vec2 aspect;
-
-in vec2 pos;
-
-#ifdef STRETCH_ANGLE
-in vec2 uv_angles;
-in float angle;
-
-#else
-in float ratio;
-uniform float totalAreaRatio;
-uniform float totalAreaRatioInv;
-
-#endif
-
-noperspective out vec4 finalColor;
-
-vec3 weight_to_rgb(float weight)
-{
-  vec3 r_rgb;
-  float blend = ((weight / 2.0) + 0.5);
-
-  if (weight <= 0.25) { /* blue->cyan */
-    r_rgb[0] = 0.0;
-    r_rgb[1] = blend * weight * 4.0;
-    r_rgb[2] = blend;
-  }
-  else if (weight <= 0.50) { /* cyan->green */
-    r_rgb[0] = 0.0;
-    r_rgb[1] = blend;
-    r_rgb[2] = blend * (1.0 - ((weight - 0.25) * 4.0));
-  }
-  else if (weight <= 0.75) { /* green->yellow */
-    r_rgb[0] = blend * ((weight - 0.50) * 4.0);
-    r_rgb[1] = blend;
-    r_rgb[2] = 0.0;
-  }
-  else if (weight <= 1.0) { /* yellow->red */
-    r_rgb[0] = blend;
-    r_rgb[1] = blend * (1.0 - ((weight - 0.75) * 4.0));
-    r_rgb[2] = 0.0;
-  }
-  else {
-    /* exceptional value, unclamped or nan,
-     * avoid uninitialized memory use */
-    r_rgb[0] = 1.0;
-    r_rgb[1] = 0.0;
-    r_rgb[2] = 1.0;
-  }
-
-  return r_rgb;
-}
-
-#define M_PI 3.1415926535897932
-
-vec2 angle_to_v2(float angle)
-{
-  return vec2(cos(angle), sin(angle));
-}
-
-/* Adapted from BLI_math_vector.h */
-float angle_normalized_v2v2(vec2 v1, vec2 v2)
-{
-  v1 = normalize(v1 * aspect);
-  v2 = normalize(v2 * aspect);
-  /* this is the same as acos(dot_v3v3(v1, v2)), but more accurate */
-  bool q = (dot(v1, v2) >= 0.0);
-  vec2 v = (q) ? (v1 - v2) : (v1 + v2);
-  float a = 2.0 * asin(length(v) / 2.0);
-  return (q) ? a : M_PI - a;
-}
-
-float area_ratio_to_stretch(float ratio, float tot_ratio, float inv_tot_ratio)
-{
-  ratio *= (ratio > 0.0f) ? tot_ratio : -inv_tot_ratio;
-  return (ratio > 1.0f) ? (1.0f / ratio) : ratio;
-}
-
-void main()
-{
-  gl_Position = ModelViewProjectionMatrix * vec4(pos, 0.0, 1.0);
-
-#ifdef STRETCH_ANGLE
-  vec2 v1 = angle_to_v2(uv_angles.x * M_PI);
-  vec2 v2 = angle_to_v2(uv_angles.y * M_PI);
-  float uv_angle = angle_normalized_v2v2(v1, v2) / M_PI;
-  float stretch = 1.0 - abs(uv_angle - angle);
-  stretch = stretch;
-  stretch = 1.0 - stretch * stretch;
-#else
-  float stretch = 1.0 - area_ratio_to_stretch(ratio, totalAreaRatio, totalAreaRatioInv);
-
-#endif
-
-  finalColor = vec4(weight_to_rgb(stretch), 1.0);
-}