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HD lights rendering in interiors

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dexy
2019-12-05 03:40:52 +11:00
Unverified
parent f333e64812
commit c6aa4c7baf
15 changed files with 412 additions and 87 deletions
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CodeWalker.Shaders/LightPS.hlsli
+65 -3
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@@ -22,6 +22,23 @@ cbuffer PSLightVars : register(b0)
float SampleMult;//for MSAA
}
cbuffer PSLightInstVars : register(b2)
{
float3 InstPosition;//camera relative
float InstIntensity;
float3 InstColour;
float InstFalloff;
float3 InstDirection;
float InstFalloffExponent;
float3 InstTangentX;
float InstConeInnerAngle;
float3 InstTangentY;
float InstConeOuterAngle;
float3 InstCapsuleExtent;
uint InstType;
float3 InstCullingPlaneNormal;
float InstCullingPlaneOffset;
}
@@ -52,8 +69,6 @@ float3 GetReflectedDir(float3 camRel, float3 norm)
}
float3 DeferredDirectionalLight(float3 camRel, float3 norm, float4 diffuse, float4 specular, float4 irradiance)
{
float3 refl = GetReflectedDir(camRel, norm);
@@ -88,7 +103,7 @@ float4 DeferredLODLight(float3 camRel, float3 norm, float4 diffuse, float4 specu
else if (LightType == 2)//spot (cone)
{
float ang = acos(-dot(ldir, lodlight.Direction));
float iang = lodlight.InnerAngle * 0.01745329;
float iang = lodlight.InnerAngle * 0.01745329 * 0.5;
float oang = lodlight.OuterAngleOrCapExt * 0.01745329 * 0.5;
if (ang > oang) return 0;
lamt *= saturate(1 - ((ang - iang) / (oang - iang)));
@@ -113,5 +128,52 @@ float4 DeferredLODLight(float3 camRel, float3 norm, float4 diffuse, float4 specu
return float4(lcol, 1);
}
float4 DeferredLight(float3 camRel, float3 norm, float4 diffuse, float4 specular, float4 irradiance)
{
float3 srpos = InstPosition - camRel; //light position relative to surface position
float ldist = length(srpos);
if (ldist > InstFalloff) return 0; //out of range of the light... TODO: capsules!
if (ldist <= 0) return 0;
float4 rgbi = float4(InstColour, InstIntensity);
float3 lcol = rgbi.rgb;// * rgbi.a; // * 5.0f;
float3 ldir = srpos / ldist;
float pclit = saturate(dot(ldir, norm));
float lamt = 1;
if (InstType == 1)//point (sphere)
{
lamt *= pow(saturate(1 - (ldist / InstFalloff)), InstFalloffExponent);
}
else if (InstType == 2)//spot (cone)
{
float ang = acos(-dot(ldir, InstDirection));
float iang = InstConeInnerAngle * 0.01745329 * 0.5;
float oang = InstConeOuterAngle * 0.01745329 * 0.5;
if (ang > oang) return 0;
lamt *= saturate(1 - ((ang - iang) / (oang - iang)));
lamt *= pow(saturate(1 - (ldist / InstFalloff)), InstFalloffExponent);
}
else if (InstType == 4)//capsule
{
lamt *= pow(saturate(1 - (ldist / InstFalloff)), InstFalloffExponent); //TODO! proper capsule lighting... (use point-line dist!)
}
pclit *= lamt;
if (pclit <= 0) return 0;
float3 refl = GetReflectedDir(camRel, norm);
float specb = saturate(dot(refl, ldir));
float specp = max(exp(specb * 10) - 1, 0);
float3 spec = lcol * (0.00006 * specp * specular.r * lamt);
lcol = lcol * diffuse.rgb * pclit + spec;
return float4(lcol, 1);
}