Project as is

res/shaders/frag.fs

@@ -0,0 +1,11 @@
+#version 330
+
+uniform sampler2D sampler;
+
+in vec2 tex;
+
+layout (location = 0) out vec4 color;
+
+void main() {
+	color = texture(sampler, tex);
+}

res/shaders/vert.vs

@@ -0,0 +1,14 @@
+# version 330
+
+uniform mat4 pr_matrix;
+uniform mat4 vw_matrix;
+
+in vec3 verts;
+in vec2 texts;
+
+out vec2 tex;
+
+void main() {
+	tex = texts;
+	gl_Position = pr_matrix * vw_matrix * vec4(verts, 1.0);
+}