OrdinaryMagician/vkdoom_m
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- Add dynamic light to sprites

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This commit is contained in:
Magnus Norddahl 2017-09-23 14:14:59 +02:00
commit f3ba92f03c
4 changed files with 63 additions and 8 deletions
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49
src/polyrenderer/scene/poly_sprite.cpp
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@ -154,6 +154,7 @@ void RenderPolySprite::Render(PolyRenderThread *thread, const TriMatrix &worldTo
int lightlevel = fullbrightSprite ? 255 : thing->Sector->lightlevel + actualextralight;
PolyDrawArgs args;
SetDynlight(thing, args);
args.SetLight(GetColorTable(sub->sector->Colormap, sub->sector->SpecialColors[sector_t::sprites], true), lightlevel, PolyRenderer::Instance()->Light.SpriteGlobVis(foggy), fullbrightSprite);
args.SetTransform(&worldToClip);
args.SetFaceCullCCW(true);
@ -368,3 +369,51 @@ FTexture *RenderPolySprite::GetSpriteTexture(AActor *thing, /*out*/ bool &flipX)
}
}
}
void RenderPolySprite::SetDynlight(AActor *thing, PolyDrawArgs &args)
{
float lit_red = 0;
float lit_green = 0;
float lit_blue = 0;
auto node = thing->Sector->lighthead;
while (node != nullptr)
{
ADynamicLight *light = node->lightsource;
if (light->visibletoplayer && !(light->flags2&MF2_DORMANT) && (!(light->lightflags&LF_DONTLIGHTSELF) || light->target != thing) && !(light->lightflags&LF_DONTLIGHTACTORS))
{
float lx = (float)(light->X() - thing->X());
float ly = (float)(light->Y() - thing->Y());
float lz = (float)(light->Z() - thing->Center());
float LdotL = lx * lx + ly * ly + lz * lz;
float radius = node->lightsource->GetRadius();
if (radius * radius >= LdotL)
{
float distance = sqrt(LdotL);
float attenuation = 1.0f - distance / radius;
if (attenuation > 0.0f)
{
float red = light->GetRed() * (1.0f / 255.0f);
float green = light->GetGreen() * (1.0f / 255.0f);
float blue = light->GetBlue() * (1.0f / 255.0f);
/*if (light->IsSubtractive())
{
float bright = FVector3(lr, lg, lb).Length();
FVector3 lightColor(lr, lg, lb);
red = (bright - lr) * -1;
green = (bright - lg) * -1;
blue = (bright - lb) * -1;
}*/
lit_red += red * attenuation;
lit_green += green * attenuation;
lit_blue += blue * attenuation;
}
}
}
node = node->nextLight;
}
lit_red = clamp(lit_red * 255.0f, 0.0f, 255.0f);
lit_green = clamp(lit_green * 255.0f, 0.0f, 255.0f);
lit_blue = clamp(lit_blue * 255.0f, 0.0f, 255.0f);
args.SetDynLightColor((((uint32_t)lit_red) << 16) | (((uint32_t)lit_green) << 8) | ((uint32_t)lit_blue));
}