working generating camera rays from view and proj matrices

src/shaders/shader.frag

@@ -7,6 +7,13 @@ layout(location=0) out vec4 out_color;
 layout(set=0, binding=0) uniform texture2D tex;
 layout(set=0, binding=1) uniform sampler tex_smp;
 
+layout(set=1, binding=0) uniform Uniforms 
+{
+    mat4 view_matrix;
+    mat4 proj_matrix_inv;
+    vec3 cam_pos;
+};
+
 // Defines
 #define PI 3.141592
 #define EPSILON 0.01
@@ -19,10 +26,10 @@ layout(set=0, binding=1) uniform sampler tex_smp;
 
 void main() 
 {
-    // Calculate ray
-    vec3 ro = vec3(0.0, 2, -6.0); // Ray origin
-    vec3 rd = normalize(vec3(vert_uv - vec2(0.5, 0.5), 1.001)); // Ray direction
-    
+    vec3 view_dir = (proj_matrix_inv * vec4(vert_uv, 0, 1)).xyz;
+    vec3 ray_dir = normalize(view_matrix * vec4(view_dir,0)).xyz;
+
+
     // Render
-    out_color = vec4(raymarch(ro, rd), 1);
+    out_color = vec4(raymarch(cam_pos, ray_dir), 1);
 }