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- added map option to disable shadowmaps.

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Prompted by 'Hurt' which has > 4000 lights and runs into both performance issues and unpredictable light selection for the limited amount of shadowmap slots.
This commit is contained in:
Christoph Oelckers 2021-07-13 11:54:25 +02:00
parent cb8ae0b560
commit 0cffeef2c6
5 changed files with 15 additions and 7 deletions
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4
src/common/rendering/hwrenderer/data/hw_shadowmap.cpp
View file

@ -85,7 +85,7 @@ CUSTOM_CVAR(Int, gl_shadowmap_quality, 512, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
bool IShadowMap::ShadowTest(const DVector3 &lpos, const DVector3 &pos)
{
if (mAABBTree && gl_light_shadowmap)
if (mAABBTree)
return mAABBTree->RayTest(lpos, pos) >= 1.0f;
else
return true;
@ -98,7 +98,7 @@ bool IShadowMap::PerformUpdate()
LightsProcessed = 0;
LightsShadowmapped = 0;
if (gl_light_shadowmap && (screen->hwcaps & RFL_SHADER_STORAGE_BUFFER) && CollectLights != nullptr)
if (CollectLights != nullptr)
{
UpdateCycles.Clock();
UploadAABBTree();

2
src/gamedata/g_mapinfo.cpp
View file

@ -1658,6 +1658,8 @@ MapFlagHandlers[] =
{ "nocoloredspritelighting", MITYPE_SETFLAG3, LEVEL3_NOCOLOREDSPRITELIGHTING, 0 },
{ "forceworldpanning", MITYPE_SETFLAG3, LEVEL3_FORCEWORLDPANNING, 0 },
{ "propermonsterfallingdamage", MITYPE_SETFLAG3, LEVEL3_PROPERMONSTERFALLINGDAMAGE, 0 },
{ "disableshadowmap", MITYPE_SETFLAG3, LEVEL3_NOSHADOWMAP, 0 },
{ "enableshadowmap", MITYPE_CLRFLAG3, LEVEL3_NOSHADOWMAP, 0 },
{ "enableskyboxao", MITYPE_SETFLAG3, LEVEL3_SKYBOXAO, 0 },
{ "disableskyboxao", MITYPE_CLRFLAG3, LEVEL3_SKYBOXAO, 0 },
{ "nobotnodes", MITYPE_IGNORE, 0, 0 }, // Skulltag option: nobotnodes

1
src/gamedata/g_mapinfo.h
View file

@ -257,6 +257,7 @@ enum ELevelFlags : unsigned int
LEVEL3_E3M8SPECIAL = 0x00002000,
LEVEL3_E4M8SPECIAL = 0x00004000,
LEVEL3_E4M6SPECIAL = 0x00008000,
LEVEL3_NOSHADOWMAP = 0x00010000, // disables shadowmaps for a given level.
};

3
src/rendering/hwrenderer/hw_dynlightdata.cpp
View file

@ -107,10 +107,9 @@ void AddLightToList(FDynLightData &dld, int group, FDynamicLight * light, bool f
}
float shadowIndex;
if (gl_light_shadowmap)
if (gl_light_shadowmap) // note: with gl_light_shadowmap switched off, we cannot rely on properly set indices anymore.
{
shadowIndex = light->mShadowmapIndex + 1.0f;
}
else shadowIndex = 1025.f;
// Store attenuate flag in the sign bit of the float.

8
src/rendering/hwrenderer/hw_entrypoint.cpp
View file

@ -107,7 +107,7 @@ sector_t* RenderViewpoint(FRenderViewpoint& mainvp, AActor* camera, IntRect* bou
R_SetupFrame(mainvp, r_viewwindow, camera);
if (mainview && toscreen)
if (mainview && toscreen && !(camera->Level->flags3 & LEVEL3_NOSHADOWMAP) && gl_light_shadowmap && (screen->hwcaps & RFL_SHADER_STORAGE_BUFFER))
{
screen->SetAABBTree(camera->Level->aabbTree);
screen->mShadowMap.SetCollectLights([=] {
@ -115,6 +115,12 @@ sector_t* RenderViewpoint(FRenderViewpoint& mainvp, AActor* camera, IntRect* bou
});
screen->UpdateShadowMap();
}
else
{
// null all references to the level if we do not need a shadowmap. This will shortcut all internal calculations without further checks.
screen->SetAABBTree(nullptr);
screen->mShadowMap.SetCollectLights(nullptr);
}
// Update the attenuation flag of all light defaults for each viewpoint.
// This function will only do something if the setting differs.