rectangle render

shaders/triangle.vert

@@ -0,0 +1,13 @@
+#version 330 core
+
+layout(location = 0) in vec3 position; // Vertex position
+out vec3 color; // Output color to the fragment shader
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+
+void main() {
+    gl_Position = projection * view * model * vec4(position, 1.0); // Apply transformation matrices
+    color = position + vec3(0.5); // Set the color based on the vertex position
+}