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Calculate sun diameter even when not using shadows

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This commit is contained in:
clayjohn 2020-05-01 22:22:35 -07:00
parent d2887ea78b
commit 34ee273e20
1 changed files with 13 additions and 9 deletions
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22
servers/rendering/rasterizer_rd/rasterizer_scene_high_end_rd.cpp
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@ -1720,6 +1720,16 @@ void RasterizerSceneHighEndRD::_setup_lights(RID *p_light_cull_result, int p_lig
light_data.shadow_enabled = p_using_shadows && storage->light_has_shadow(base);
float angular_diameter = storage->light_get_param(base, RS::LIGHT_PARAM_SIZE);
if (angular_diameter > 0.0) {
// I know tan(0) is 0, but let's not risk it with numerical precision.
// technically this will keep expanding until reaching the sun, but all we care
// is expand until we reach the radius of the near plane (there can't be more occluders than that)
angular_diameter = Math::tan(Math::deg2rad(angular_diameter));
} else {
angular_diameter = 0.0;
}
if (light_data.shadow_enabled) {
RS::LightDirectionalShadowMode smode = storage->light_directional_get_shadow_mode(base);
@ -1775,15 +1785,9 @@ void RasterizerSceneHighEndRD::_setup_lights(RID *p_light_cull_result, int p_lig
light_data.fade_to = -light_data.shadow_split_offsets[3];
light_data.soft_shadow_scale = storage->light_get_param(base, RS::LIGHT_PARAM_SHADOW_BLUR);
light_data.softshadow_angle = angular_diameter;
float softshadow_angle = storage->light_get_param(base, RS::LIGHT_PARAM_SIZE);
if (softshadow_angle > 0.0) {
// I know tan(0) is 0, but let's not risk it with numerical precision.
// technically this will keep expanding until reaching the sun, but all we care
// is expand until we reach the radius of the near plane (there can't be more occluders than that)
light_data.softshadow_angle = Math::tan(Math::deg2rad(softshadow_angle));
} else {
light_data.softshadow_angle = 0;
if (angular_diameter <= 0.0) {
light_data.soft_shadow_scale *= directional_shadow_quality_radius_get(); // Only use quality radius for PCF
}
}
@ -1806,7 +1810,7 @@ void RasterizerSceneHighEndRD::_setup_lights(RID *p_light_cull_result, int p_lig
sky_light_data.color[2] = light_data.color[2];
sky_light_data.enabled = true;
sky_light_data.size = light_data.softshadow_angle;
sky_light_data.size = angular_diameter;
sky_scene_state.directional_light_count++;
}