Kav/Effects/DeferredPBREffect.cs

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C#
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2020-08-23 00:52:44 +00:00
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace Kav
{
public class DeferredPBREffect : Effect
{
EffectParameter gPositionParam;
EffectParameter gAlbedoParam;
EffectParameter gNormalParam;
EffectParameter gMetallicRoughnessParam;
EffectParameter eyePositionParam;
PointLightCollection pointLightCollection;
public Texture2D GPosition { get; set; }
public Texture2D GAlbedo { get; set; }
public Texture2D GNormal { get; set; }
public Texture2D GMetallicRoughness { get; set; }
public Vector3 EyePosition { get; set; }
public int MaxPointLights { get; } = 64;
public PointLightCollection PointLights
{
get { return pointLightCollection; }
private set { pointLightCollection = value; }
}
public DeferredPBREffect(GraphicsDevice graphicsDevice) : base(graphicsDevice, Resources.DeferredPBREffect)
{
CacheEffectParameters();
pointLightCollection = new PointLightCollection(
Parameters["PointLightPositions"],
Parameters["PointLightColors"],
MaxPointLights
);
}
protected DeferredPBREffect(DeferredPBREffect cloneSource) : base(cloneSource)
{
GPosition = cloneSource.GPosition;
GAlbedo = cloneSource.GAlbedo;
GNormal = cloneSource.GNormal;
GMetallicRoughness = cloneSource.GMetallicRoughness;
EyePosition = cloneSource.EyePosition;
PointLights = new PointLightCollection(
Parameters["LightPositions"],
Parameters["PositionLightColors"],
MaxPointLights
);
for (int i = 0; i < MaxPointLights; i++)
{
PointLights[i] = cloneSource.PointLights[i];
}
}
public override Effect Clone()
{
return new DeferredPBREffect(this);
}
protected override void OnApply()
{
gPositionParam.SetValue(GPosition);
gAlbedoParam.SetValue(GAlbedo);
gNormalParam.SetValue(GNormal);
gMetallicRoughnessParam.SetValue(GMetallicRoughness);
eyePositionParam.SetValue(EyePosition);
}
void CacheEffectParameters()
{
gPositionParam = Parameters["gPosition"];
gAlbedoParam = Parameters["gAlbedo"];
gNormalParam = Parameters["gNormal"];
gMetallicRoughnessParam = Parameters["gMetallicRoughness"];
eyePositionParam = Parameters["EyePosition"];
}
}
}