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flat sprite lighting in deferred pipeline

sprite_light_experimental
cosmonaut 2020-12-12 02:36:53 -08:00
parent a76c0234d4
commit 9bd7f84d26
3 changed files with 22 additions and 27 deletions
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14
Effects/DeferredPBR_PointLightEffect.cs
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@ -18,8 +18,6 @@ namespace Kav
EffectParameter farPlaneParam;
EffectParameter worldParam;
EffectParameter worldInverseParam;
EffectParameter worldViewProjectionParam;
public Texture2D GPosition { get; set; }
@ -47,7 +45,7 @@ namespace Kav
set
{
world = value;
dirtyFlags |= EffectDirtyFlags.WorldViewProj | EffectDirtyFlags.World;
dirtyFlags |= EffectDirtyFlags.WorldViewProj;
}
}
@ -114,14 +112,6 @@ namespace Kav
farPlaneParam.SetValue(FarPlane);
if ((dirtyFlags & EffectDirtyFlags.World) != 0)
{
worldParam.SetValue(world);
worldInverseParam.SetValue(Matrix.Invert(world));
dirtyFlags &= ~EffectDirtyFlags.World;
}
if ((dirtyFlags & EffectDirtyFlags.WorldViewProj) != 0)
{
worldViewProjectionParam.SetValue(world * view * projection);
@ -145,8 +135,6 @@ namespace Kav
farPlaneParam = Parameters["FarPlane"];
worldParam = Parameters["World"];
worldInverseParam = Parameters["WorldInverse"];
worldViewProjectionParam = Parameters["WorldViewProjection"];
}
}

BIN
Effects/FXB/DeferredPBR_PointLightEffect.fxb (Stored with Git LFS)
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31
Effects/HLSL/DeferredPBR_PointLightEffect.fx
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@ -21,8 +21,6 @@ BEGIN_CONSTANTS
MATRIX_CONSTANTS
float4x4 WorldInverse _ps(c4) _cb(c8);
float4x4 World _ps(c8) _cb(c12);
float4x4 WorldViewProjection _vs(c0) _cb(c4);
END_CONSTANTS
@ -88,17 +86,26 @@ float4 main_ps(PixelInput input) : SV_TARGET0
float3 albedo = SAMPLE_TEXTURE(gAlbedo, texCoord).rgb;
float2 metallicRoughness = SAMPLE_TEXTURE(gMetallicRoughness, texCoord).rg;
float3 objectZNormal = mul(normal, WorldInverse);
objectZNormal.xz *= -1;
float3 invertedZNormalWorld = mul(objectZNormal, World);
if (isSprite == 1.0)
{
float3 lightDir = PointLightPosition - worldPosition;
float3 L = normalize(lightDir);
float distance = length(lightDir);
float attenuation = 1.0 / (distance * distance);
float3 radiance = PointLightColor * attenuation;
return ComputeColor(
worldPosition,
normal,
albedo,
metallicRoughness.r,
metallicRoughness.g
) + (isSprite * ComputeColor(worldPosition, invertedZNormalWorld, albedo, metallicRoughness.r, metallicRoughness.g));
return float4(albedo * radiance * 0.1, 1.0);
}
else
{
return ComputeColor(
worldPosition,
normal,
albedo,
metallicRoughness.r,
metallicRoughness.g
);
}
}
Technique DeferredPBR_Point