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Decrease the default soft shadow quality to improve performance

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Soft shadows are relatively expensive to filter. However, with the
default blur factors, it's not needed to use too many samples
(unless PCSS-like shadows are used with a large size). Textures
and screen-space antialiasing can also be used to mask the noise
pattern effectively.

On a GeForce GTX 1080, going from Medium to Low for both shadow types
saves 0.2-0.4 ms of GPU time per frame in 2560×1440 resolution.
This can translate to significantly higher savings on lower-end GPUs.

Given how the shader works, this improves rendering performance
even if lights with shadows are never used.
This commit is contained in:
Hugo Locurcio
2021-10-23 16:32:38 +02:00
parent 0aa6f27061
commit 970bed62ab
2 changed files with 4 additions and 4 deletions
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4
servers/rendering_server.cpp
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@@ -2794,12 +2794,12 @@ RenderingServer::RenderingServer() {
GLOBAL_DEF("rendering/shadows/directional_shadow/size", 4096);
GLOBAL_DEF("rendering/shadows/directional_shadow/size.mobile", 2048);
ProjectSettings::get_singleton()->set_custom_property_info("rendering/shadows/directional_shadow/size", PropertyInfo(Variant::INT, "rendering/shadows/directional_shadow/size", PROPERTY_HINT_RANGE, "256,16384"));
GLOBAL_DEF("rendering/shadows/directional_shadow/soft_shadow_quality", 3);
GLOBAL_DEF("rendering/shadows/directional_shadow/soft_shadow_quality", 2);
GLOBAL_DEF("rendering/shadows/directional_shadow/soft_shadow_quality.mobile", 0);
ProjectSettings::get_singleton()->set_custom_property_info("rendering/shadows/directional_shadow/soft_shadow_quality", PropertyInfo(Variant::INT, "rendering/shadows/directional_shadow/soft_shadow_quality", PROPERTY_HINT_ENUM, "Hard (Fastest),Soft Very Low (Faster),Soft Low (Fast),Soft Medium (Average),Soft High (Slow),Soft Ultra (Slowest)"));
GLOBAL_DEF("rendering/shadows/directional_shadow/16_bits", true);
GLOBAL_DEF("rendering/shadows/shadows/soft_shadow_quality", 3);
GLOBAL_DEF("rendering/shadows/shadows/soft_shadow_quality", 2);
GLOBAL_DEF("rendering/shadows/shadows/soft_shadow_quality.mobile", 0);
ProjectSettings::get_singleton()->set_custom_property_info("rendering/shadows/shadows/soft_shadow_quality", PropertyInfo(Variant::INT, "rendering/shadows/shadows/soft_shadow_quality", PROPERTY_HINT_ENUM, "Hard (Fastest),Soft Very Low (Faster),Soft Low (Fast),Soft Medium (Average),Soft High (Slow),Soft Ultra (Slowest)"));