triangle and line

shaders/triangle.frag

@@ -0,0 +1,7 @@
+#version 450
+
+layout(location = 0) out vec4 f_color;
+
+void main() {
+    f_color = vec4(1.0, 0.0, 0.0, 1.0);
+}

shaders/triangle.vert

@@ -0,0 +1,7 @@
+#version 450
+
+layout(location = 0) in vec2 position;
+
+void main() {
+    gl_Position = vec4(position, 0.0, 1.0);
+}