1 files changed, 37 insertions, 0 deletions
diff --git a/source/blender/gpu/shaders/gpu_shader_icon_vert.glsl b/source/blender/gpu/shaders/gpu_shader_icon_vert.glsl
new file mode 100644
index 00000000000..25f64bfe0b6
--- /dev/null
+++ b/source/blender/gpu/shaders/gpu_shader_icon_vert.glsl
@@ -0,0 +1,37 @@
+/**
+ * Simple shader that just draw one icon at the specified location
+ * does not need any vertex input (producing less call to immBegin/End)
+ */
+
+void main()
+{
+  vec2 uv;
+  vec2 co;
+
+  if (gl_VertexID == 0) {
+    co = rect_geom.xw;
+    uv = rect_icon.xw;
+    mask_coord_interp = vec2(0, 1);
+  }
+  else if (gl_VertexID == 1) {
+    co = rect_geom.xy;
+    uv = rect_icon.xy;
+    mask_coord_interp = vec2(0, 0);
+  }
+  else if (gl_VertexID == 2) {
+    co = rect_geom.zw;
+    uv = rect_icon.zw;
+    mask_coord_interp = vec2(1, 1);
+  }
+  else {
+    co = rect_geom.zy;
+    uv = rect_icon.zy;
+    mask_coord_interp = vec2(1, 0);
+  }
+
+  /* Put origin in lower right corner. */
+  mask_coord_interp.x -= 1;
+
+  gl_Position = ModelViewProjectionMatrix * vec4(co, 0.0f, 1.0f);
+  texCoord_interp = uv;
+}