diff options
Diffstat (limited to 'src/main.rs')
| -rw-r--r-- | src/main.rs | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/src/main.rs b/src/main.rs index 79b9d1f..bbe131d 100644 --- a/src/main.rs +++ b/src/main.rs @@ -67,7 +67,11 @@ impl View { } fn try_main() -> Result<(), String> { - let my_sdf = sdf::Sdf::gen_thread_random_max_depth(7); + let my_sdf = if false { + sdf::Sdf::sphere(1.0) + } else { + sdf::Sdf::gen_thread_random_max_depth(7) + }; println!("{my_sdf:?}"); let mut window = win::Window::new("AutoSDF", 1280, 720, true) @@ -137,10 +141,18 @@ void main() { float threshold = 0.02; if (min_dist < threshold) { - float L = 0.3 + max(0., dot(normal(p), normalize(vec3(.8,1,.6)))); + vec3 N = normal(p); + vec3 light_direction = normalize(vec3(.8,1,.6)); + float L_diffuse = max(0., dot(N, light_direction)); + vec3 R = reflect(light_direction, N); + vec3 view_direction = u_rotation * vec3(0.0, 0.0, -1.0); + float L_specular = pow(max(0.0, dot(R, view_direction)), 8.0); float brightness = (1.0/threshold) * (threshold-min_dist); - brightness = pow(brightness, 8.0); - final_color += L * brightness * vec3(1.0, 0.0, 0.0); + brightness = pow(brightness, 16.0); + float L_ambient = 0.3; + vec3 color = vec3(1.0, 0.0, 0.0); + float specularity = 0.15; // strength of specular lighting + final_color += brightness * mix(mix(L_diffuse, 1.0, L_ambient) * color, vec3(L_specular), specularity); break; } |