diff options
Diffstat (limited to 'client/shaders/object_shader/opengl_fragment.glsl')
| -rw-r--r-- | client/shaders/object_shader/opengl_fragment.glsl | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/client/shaders/object_shader/opengl_fragment.glsl b/client/shaders/object_shader/opengl_fragment.glsl index 0b9dbc996..674b6a739 100644 --- a/client/shaders/object_shader/opengl_fragment.glsl +++ b/client/shaders/object_shader/opengl_fragment.glsl @@ -507,8 +507,12 @@ void main(void) // Power ratio was measured on torches in MTG (brightness = 14). float adjusted_night_ratio = pow(nightRatio, 0.6); - if (f_normal_length != 0 && cosLight < 0.035) { - shadow_int = max(shadow_int, 1 - clamp(cosLight, 0.0, 0.035)/0.035); + // cosine of the normal-to-light angle when + // we start to apply self-shadowing + const float self_shadow_cutoff_cosine = 0.14; + if (f_normal_length != 0 && cosLight < self_shadow_cutoff_cosine) { + shadow_int = max(shadow_int, 1 - clamp(cosLight, 0.0, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); + shadow_color = mix(vec3(0.0), shadow_color, min(cosLight, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); } shadow_int *= f_adj_shadow_strength; |