1 files changed, 10 insertions, 6 deletions
diff --git a/source/blender/gpu/shaders/gpu_shader_text_vert.glsl b/source/blender/gpu/shaders/gpu_shader_text_vert.glsl
index d8e4b2bc986..28437208e91 100644
--- a/source/blender/gpu/shaders/gpu_shader_text_vert.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_text_vert.glsl
@@ -5,13 +5,17 @@ in vec4 pos; /* rect */
 in vec4 tex; /* rect */
 in vec4 col;
 
-out vec4 pos_rect;
-out vec4 tex_rect;
-out vec4 color;
+flat out vec4 color_flat;
+noperspective out vec2 texCoord_interp;
 
 void main()
 {
-  pos_rect = pos;
-  tex_rect = tex;
-  color = col;
+  /* Quad expension using instanced rendering. */
+  float x = float(gl_VertexID % 2);
+  float y = float(gl_VertexID / 2);
+  vec2 quad = vec2(x, y);
+
+  gl_Position = ModelViewProjectionMatrix * vec4(mix(pos.xy, pos.zw, quad), 0.0, 1.0);
+  texCoord_interp = mix(abs(tex.xy), abs(tex.zw), quad) * sign(tex.xw);
+  color_flat = col;
 }