Sketchy skybox

assets/shaders/skybox.vert

@@ -0,0 +1,22 @@
+#version 460
+#extension GL_EXT_scalar_block_layout : require
+
+layout(location = 0) in vec3 directionWS;
+
+out Varyings {
+    layout(location = 0) vec3 texCoord;
+} var;
+
+layout(set = 0, binding = 0, scalar) uniform GlobalUniforms {
+    mat4 matrixWStoVS;
+    mat4 matrixVStoCS;
+    vec3 ambientLight;
+} _Global;
+
+void main() {
+    vec3 directionVS = (_Global.matrixWStoVS * vec4(directionWS, 0.0)).xyz;
+    vec4 directionCS = _Global.matrixVStoCS * vec4(directionVS, 0.0);
+
+    gl_Position = vec4(directionCS.xy, 0.0, directionCS.w);
+    var.texCoord = -directionWS;
+}