OpenGL: simple 2D shader with flat color

Flat color means each primitive will use color from the provoking
vertex.

1 files changed, 18 insertions, 0 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_2D_flat_color_vert.glsl b/source/blender/gpu/shaders/gpu_shader_2D_flat_color_vert.glsl
new file mode 100644
index 00000000000..aa1eba470ab
--- /dev/null
+++ b/source/blender/gpu/shaders/gpu_shader_2D_flat_color_vert.glsl
@@ -0,0 +1,18 @@
+
+#if __VERSION__ == 120
+  attribute vec2 pos;
+  attribute vec4 color;
+
+  flat varying vec4 finalColor;
+#else
+  in vec2 pos;
+  in vec4 color;
+
+  flat out vec4 finalColor;
+#endif
+
+void main()
+{
+	gl_Position = gl_ModelViewProjectionMatrix * vec4(pos, 0.0, 1.0);
+	finalColor = color;
+}