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Tweak shadow bias defaults for DirectionalLight3D and OmniLight3D

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- Increase DirectionalLight3D normal bias to 2.0 to reduce shadow acne
  at grazing angles.
- Decrease OmniLight3D bias to 0.1 to reduce shadow peter-panning.
This commit is contained in:
Hugo Locurcio
2022-12-05 21:44:23 +01:00
parent f3e6750a7e
commit e560971bf2
5 changed files with 13 additions and 9 deletions
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14
scene/3d/light_3d.cpp
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@@ -461,7 +461,7 @@ Light3D::Light3D(RenderingServer::LightType p_type) {
set_param(PARAM_SHADOW_PANCAKE_SIZE, 20.0);
set_param(PARAM_SHADOW_OPACITY, 1.0);
set_param(PARAM_SHADOW_BLUR, 1.0);
set_param(PARAM_SHADOW_BIAS, 0.03);
set_param(PARAM_SHADOW_BIAS, 0.1);
set_param(PARAM_SHADOW_NORMAL_BIAS, 1.0);
set_param(PARAM_TRANSMITTANCE_BIAS, 0.05);
set_param(PARAM_SHADOW_FADE_START, 1);
@@ -571,8 +571,8 @@ DirectionalLight3D::DirectionalLight3D() :
Light3D(RenderingServer::LIGHT_DIRECTIONAL) {
set_param(PARAM_SHADOW_MAX_DISTANCE, 100);
set_param(PARAM_SHADOW_FADE_START, 0.8);
// Increase the default shadow bias to better suit most scenes.
set_param(PARAM_SHADOW_BIAS, 0.1);
// Increase the default shadow normal bias to better suit most scenes.
set_param(PARAM_SHADOW_NORMAL_BIAS, 2.0);
set_param(PARAM_INTENSITY, 100000.0); // Specified in Lux, approximate mid-day sun.
set_shadow_mode(SHADOW_PARALLEL_4_SPLITS);
blend_splits = false;
@@ -614,8 +614,6 @@ void OmniLight3D::_bind_methods() {
OmniLight3D::OmniLight3D() :
Light3D(RenderingServer::LIGHT_OMNI) {
set_shadow_mode(SHADOW_CUBE);
// Increase the default shadow biases to better suit most scenes.
set_param(PARAM_SHADOW_BIAS, 0.2);
}
PackedStringArray SpotLight3D::get_configuration_warnings() const {
@@ -639,3 +637,9 @@ void SpotLight3D::_bind_methods() {
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "spot_angle", PROPERTY_HINT_RANGE, "0,180,0.01,degrees"), "set_param", "get_param", PARAM_SPOT_ANGLE);
ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "spot_angle_attenuation", PROPERTY_HINT_EXP_EASING, "attenuation"), "set_param", "get_param", PARAM_SPOT_ATTENUATION);
}
SpotLight3D::SpotLight3D() :
Light3D(RenderingServer::LIGHT_SPOT) {
// Decrease the default shadow bias to better suit most scenes.
set_param(PARAM_SHADOW_BIAS, 0.03);
}