1 files changed, 0 insertions, 70 deletions
diff --git a/source/blender/gpu/shaders/compositor/compositor_despeckle.glsl b/source/blender/gpu/shaders/compositor/compositor_despeckle.glsl
deleted file mode 100644
index e4743d69d17..00000000000
--- a/source/blender/gpu/shaders/compositor/compositor_despeckle.glsl
+++ /dev/null
@@ -1,70 +0,0 @@
-#pragma BLENDER_REQUIRE(gpu_shader_compositor_texture_utilities.glsl)
-
-/* Returns true if the given color is close enough to the given reference color within the
- * threshold supplied by the user, and returns false otherwise. */
-bool is_close(vec4 reference_color, vec4 color)
-{
-  return all(lessThan(abs(reference_color - color).rgb, vec3(threshold)));
-}
-
-void main()
-{
-  ivec2 texel = ivec2(gl_GlobalInvocationID.xy);
-
-  /* A 3x3 weights kernel whose weights are the inverse of the distance to the center of the
-   * kernel. So the center weight is zero, the corners weights are (1 / sqrt(2)), and the rest
-   * of the weights are 1. The total sum of weights is 4 plus quadruple the corner weight. */
-  float corner_weight = 1.0 / sqrt(2.0);
-  float sum_of_weights = 4.0 + corner_weight * 4.0;
-  mat3 weights = mat3(vec3(corner_weight, 1.0, corner_weight),
-                      vec3(1.0, 0.0, 1.0),
-                      vec3(corner_weight, 1.0, corner_weight));
-
-  vec4 center_color = texture_load(input_tx, texel);
-
-  /* Go over the pixels in the 3x3 window around the center pixel and compute the total sum of
-   * their colors multiplied by their weights. Additionally, for pixels whose colors are not close
-   * enough to the color of the center pixel, accumulate their color as well as their weights. */
-  vec4 sum_of_colors = vec4(0);
-  float accumulated_weight = 0.0;
-  vec4 accumulated_color = vec4(0);
-  for (int j = 0; j < 3; j++) {
-    for (int i = 0; i < 3; i++) {
-      float weight = weights[j][i];
-      vec4 color = texture_load(input_tx, texel + ivec2(i - 1, j - 1)) * weight;
-      sum_of_colors += color;
-      if (!is_close(center_color, color)) {
-        accumulated_color += color;
-        accumulated_weight += weight;
-      }
-    }
-  }
-
-  /* If the accumulated weight is zero, that means all pixels in the 3x3 window are similar and no
-   * need to despeckle anything, so write the original center color and return. */
-  if (accumulated_weight == 0.0) {
-    imageStore(output_img, texel, center_color);
-    return;
-  }
-
-  /* If the ratio between the accumulated weights and the total sum of weights is not larger than
-   * the user specified neighbor threshold, then the number of pixels in the neighborhood that are
-   * not close enough to the center pixel is low, and no need to despeckle anything, so write the
-   * original center color and return. */
-  if (accumulated_weight / sum_of_weights < neighbor_threshold) {
-    imageStore(output_img, texel, center_color);
-    return;
-  }
-
-  /* If the weighted average color of the neighborhood is close enough to the center pixel, then no
-   * need to despeckle anything, so write the original center color and return. */
-  if (is_close(center_color, sum_of_colors / sum_of_weights)) {
-    imageStore(output_img, texel, center_color);
-    return;
-  }
-
-  /* We need to despeckle, so write the mean accumulated color. */
-  float factor = texture_load(factor_tx, texel).x;
-  vec4 mean_color = accumulated_color / accumulated_weight;
-  imageStore(output_img, texel, mix(center_color, mean_color, factor));
-}