Pipeline(Layout) & render pass creation

examples/shaders/test.frag

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

examples/shaders/triangle.frag

@@ -0,0 +1,9 @@
+#version 450
+
+layout(location = 0) in vec3 v_color;
+
+layout(location = 0) out vec4 f_color;
+
+void main() {
+    f_color = vec4(v_color, 1.0);
+}

examples/shaders/triangle.vert

@@ -0,0 +1,20 @@
+#version 450
+
+const vec2 positions[3] = vec2[](
+    vec2(0.0, -0.5),
+    vec2(0.5, 0.5),
+    vec2(-0.5, 0.5)
+);
+
+const 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 v_color;
+
+void main() {
+    gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
+    v_color = colors[gl_VertexIndex];
+}