Incorrect stroke when AntiAliasing is OFF

[ryuukk]

Happens on all backends

• on the button: notice the left part of the stroke is not drawn
• on the window: notice the 1px stroke on the left, and 2px stroke on the top

Someone kept merging PRs without testing AA setting, no bueno

[RobLoach]

I've seen this too, and I'm not entirely sure where it popped up.

[RobLoach]

Confirmed...

diff --git a/demo/glfw_opengl3/main.c b/demo/glfw_opengl3/main.c
index 0b6431a..9e30679 100644
--- a/demo/glfw_opengl3/main.c
+++ b/demo/glfw_opengl3/main.c
@@ -192,7 +192,7 @@ int main(void)
          * defaults everything back into a default state.
          * Make sure to either a.) save and restore or b.) reset your own state after
          * rendering the UI. */
-        nk_glfw3_render(&glfw, NK_ANTI_ALIASING_ON, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
+        nk_glfw3_render(&glfw, NK_ANTI_ALIASING_OFF, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
         glfwSwapBuffers(win);
     }
     nk_glfw3_shutdown(&glfw);

[RobLoach]

I've gone all the back to April, 2020 at b939d43 , and still can't find when this was actually working 🤔

[ryuukk]

I figured it out for the button, it's the scissor rect doesn't take into account the border

If i add -10 to the x value of the scissor's rect, then it shows properly

As for the window, i have no clue, but it perhaps is the same issue?

This whole border thing is fishy to me, why doesn't it affect the layout of widgets currently?