1 files changed, 34 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/shaders/image_frag.glsl b/source/blender/draw/engines/overlay/shaders/image_frag.glsl
new file mode 100644
index 00000000000..0da7067851d
--- /dev/null
+++ b/source/blender/draw/engines/overlay/shaders/image_frag.glsl
@@ -0,0 +1,34 @@
+
+uniform sampler2D imgTexture;
+uniform bool imgPremultiplied;
+uniform bool imgAlphaBlend;
+uniform bool imgLinear;
+uniform vec4 color;
+
+in vec2 uvs;
+
+out vec4 fragColor;
+
+void main()
+{
+  vec2 uvs_clamped = clamp(uvs, 0.0, 1.0);
+  vec4 tex_color;
+  if (imgLinear) {
+    tex_color = texture_read_as_linearrgb(imgTexture, imgPremultiplied, uvs_clamped);
+  }
+  else {
+    tex_color = texture_read_as_srgb(imgTexture, imgPremultiplied, uvs_clamped);
+  }
+  fragColor = tex_color * color;
+
+  if (!imgAlphaBlend) {
+    /* Arbitrary discard anything below 5% opacity.
+     * Note that this could be exposed to the User. */
+    if (tex_color.a < 0.05) {
+      discard;
+    }
+    else {
+      fragColor.a = 1.0;
+    }
+  }
+}