1 files changed, 17 insertions, 0 deletions
diff --git a/source/blender/draw/engines/gpencil/shaders/gpencil_depth_merge_frag.glsl b/source/blender/draw/engines/gpencil/shaders/gpencil_depth_merge_frag.glsl
new file mode 100644
index 00000000000..71597197bd8
--- /dev/null
+++ b/source/blender/draw/engines/gpencil/shaders/gpencil_depth_merge_frag.glsl
@@ -0,0 +1,17 @@
+
+uniform sampler2D depthBuf;
+uniform float strokeDepth2d;
+uniform bool strokeOrder3d;
+
+noperspective in vec4 uvcoordsvar;
+
+void main()
+{
+  float depth = textureLod(depthBuf, uvcoordsvar.xy, 0).r;
+  if (strokeOrder3d) {
+    gl_FragDepth = depth;
+  }
+  else {
+    gl_FragDepth = (depth != 0.0) ? gl_FragCoord.z : 1.0;
+  }
+}