OpenGL: edge shader discards fragments of unused edges

Discarded edges should not update depth buffer or blend with color buffer.

Geometry shader version will make this obsolete.

1 files changed, 16 insertions, 0 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_flat_color_alpha_test_0_frag.glsl b/source/blender/gpu/shaders/gpu_shader_flat_color_alpha_test_0_frag.glsl
new file mode 100644
index 00000000000..10b4c2ac39d
--- /dev/null
+++ b/source/blender/gpu/shaders/gpu_shader_flat_color_alpha_test_0_frag.glsl
@@ -0,0 +1,16 @@
+
+#if __VERSION__ == 120
+  flat varying vec4 finalColor;
+  #define fragColor gl_FragColor
+#else
+  flat in vec4 finalColor;
+  out vec4 fragColor;
+#endif
+
+void main()
+{
+	if (finalColor.a > 0.0)
+		fragColor = finalColor;
+	else
+		discard;
+}