initial

shaders/fragment.frag

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

shaders/vertex.vert

@@ -0,0 +1,24 @@
+#version 450
+
+// x -> -1 (left) 1(right)
+// y -> -1 (top)  1(bottom)
+
+vec2 positions[3] = vec2[](
+    vec2(0.0, -0.5),
+    vec2(0.5, 0.5),
+    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 in_color;
+
+void main()
+{
+    gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
+    in_color = colors[gl_VertexIndex];
+}