1 files changed, 9 insertions, 0 deletions
diff --git a/shaders/shader.vert b/shaders/shader.vert
index c1bfd9f..186ba52 100644
--- a/shaders/shader.vert
+++ b/shaders/shader.vert
@@ -6,7 +6,16 @@ vec2 triangle[3] = vec2[](
   vec2(-0.5, 0.5)
 );
 
+vec3 colors[3] = vec3[](
+  vec3(1.0, 0.0, 0.0),
+  vec3(0.0, 1.0, 0.0),
+  vec3(0.0, 0.0, 1.0)
+);
+
+layout(location = 0) out vec3 vertexColor;
+
 void main() {
   gl_Position = vec4(triangle[gl_VertexIndex], 0.0, 1.0);
+  vertexColor = colors[gl_VertexIndex];
 }