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Fix several issues with directional shadows

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- Internally disable blend splits in orthogonal directional shadow mode
- Fix soft shadows ignoring fade and blend_splits
- Fix soft shadow edge stability
This commit is contained in:
Brian Semrau
2021-10-12 19:16:23 -04:00
parent 004b44e915
commit 4fefd7cddd
5 changed files with 27 additions and 39 deletions
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2
servers/rendering/renderer_scene_cull.cpp
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@@ -2076,7 +2076,7 @@ void RendererSceneCull::_light_instance_setup_directional_shadow(int p_shadow_in
// This trick here is what stabilizes the shadow (make potential jaggies to not move)
// at the cost of some wasted resolution. Still, the quality increase is very well worth it.
const real_t unit = radius * 2.0 / texture_size;
const real_t unit = (radius + soft_shadow_expand) * 2.0 / texture_size;
x_max_cam = Math::snapped(x_vec.dot(center) + radius + soft_shadow_expand, unit);
x_min_cam = Math::snapped(x_vec.dot(center) - radius - soft_shadow_expand, unit);
y_max_cam = Math::snapped(y_vec.dot(center) + radius + soft_shadow_expand, unit);