Triangle posting

https://vulkan-tutorial.com/Vertex_buffers/Staging_buffer

Reached the above part of the tutorial. Adding IMGUI now before
continuing.

Shaders/compile.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+glslc ./shader.vert -o vert.spv
+glslc ./shader.frag -o frag.spv

Shaders/shader.vert

@@ -1,20 +1,12 @@
 #version 450
 
+layout(location = 0) in vec2 inPosition;
+layout(location = 1) in vec3 inColor;
+
 layout(location = 0) out vec3 fragColor;
 
-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)
-);
-
 void main() {
-    gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
-    fragColor = colors[gl_VertexIndex];
-}
+  gl_Position = vec4(inPosition, 0.0, 1.0);
+  fragColor = inColor;
+}
+