impl: 3D Rendering

shaders/vert.glsl.vert

@@ -1,10 +1,26 @@
 #version 450
-vec2 positions[3] = vec2[](
-        vec2(0.0, -0.5),
-        vec2(0.5, 0.5),
-        vec2(-0.5, 0.5)
-    );
+
+// Matches Vertex struct attribute descriptions
+layout(location = 0) in vec3 inPosition;
+layout(location = 1) in vec3 inColor;
+// layout(location = 2) in vec2 inTexCoord; // If you add texture coords
+
+// Matches UniformBufferObject struct and descriptor set layout binding
+layout(binding = 0) uniform UniformBufferObject {
+    mat4 model;
+    mat4 view;
+    mat4 proj;
+} ubo;
+
+// Output to fragment shader
+layout(location = 0) out vec3 fragColor;
+// layout(location = 1) out vec2 fragTexCoord; // If you add texture coords
 
 void main() {
-    gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
+    // Transform position: Model -> World -> View -> Clip space
+    gl_Position = ubo.proj * ubo.view * ubo.model * vec4(inPosition, 1.0);
+
+    // Pass color (and other attributes) through
+    fragColor = inColor;
+    // fragTexCoord = inTexCoord;
 }