120 lines
3.8 KiB
C#
120 lines
3.8 KiB
C#
using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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namespace Kav
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{
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public class DeferredPBREffect : Effect
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{
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EffectParameter gPositionParam;
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EffectParameter gAlbedoParam;
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EffectParameter gNormalParam;
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EffectParameter gMetallicRoughnessParam;
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EffectParameter shadowMapParam;
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EffectParameter eyePositionParam;
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PointLightCollection pointLightCollection;
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DirectionalLightCollection directionalLightCollection;
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public Texture2D GPosition { get; set; }
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public Texture2D GAlbedo { get; set; }
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public Texture2D GNormal { get; set; }
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public Texture2D GMetallicRoughness { get; set; }
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public TextureCube DirectionalShadowMap { get; set; }
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public Vector3 EyePosition { get; set; }
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public int MaxPointLights { get; } = 64;
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public PointLightCollection PointLights
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{
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get { return pointLightCollection; }
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private set { pointLightCollection = value; }
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}
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public int MaxDirectionalLights { get; } = 4;
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public DirectionalLightCollection DirectionalLights
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{
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get { return directionalLightCollection; }
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private set { directionalLightCollection = value; }
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}
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public DeferredPBREffect(GraphicsDevice graphicsDevice) : base(graphicsDevice, Resources.DeferredPBREffect)
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{
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CacheEffectParameters();
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pointLightCollection = new PointLightCollection(
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Parameters["PointLightPositions"],
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Parameters["PointLightColors"],
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MaxPointLights
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);
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DirectionalLights = new DirectionalLightCollection(
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Parameters["DirectionalLightDirections"],
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Parameters["DirectionalLightColors"],
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Parameters["DirectionalLightMatrices"]
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);
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}
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protected DeferredPBREffect(DeferredPBREffect cloneSource) : base(cloneSource)
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{
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GPosition = cloneSource.GPosition;
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GAlbedo = cloneSource.GAlbedo;
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GNormal = cloneSource.GNormal;
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GMetallicRoughness = cloneSource.GMetallicRoughness;
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EyePosition = cloneSource.EyePosition;
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PointLights = new PointLightCollection(
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Parameters["LightPositions"],
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Parameters["PositionLightColors"],
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MaxPointLights
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);
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for (int i = 0; i < MaxPointLights; i++)
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{
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PointLights[i] = cloneSource.PointLights[i];
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}
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DirectionalLights = new DirectionalLightCollection(
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Parameters["DirectionalLightDirections"],
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Parameters["DirectionalLightColors"],
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Parameters["DirectionalLightMatrices"]
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);
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for (int i = 0; i < MaxDirectionalLights; i++)
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{
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DirectionalLights[i] = cloneSource.DirectionalLights[i];
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}
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}
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public override Effect Clone()
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{
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return new DeferredPBREffect(this);
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}
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protected override void OnApply()
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{
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gPositionParam.SetValue(GPosition);
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gAlbedoParam.SetValue(GAlbedo);
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gNormalParam.SetValue(GNormal);
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gMetallicRoughnessParam.SetValue(GMetallicRoughness);
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shadowMapParam.SetValue(DirectionalShadowMap);
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eyePositionParam.SetValue(EyePosition);
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}
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void CacheEffectParameters()
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{
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gPositionParam = Parameters["gPosition"];
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gAlbedoParam = Parameters["gAlbedo"];
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gNormalParam = Parameters["gNormal"];
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gMetallicRoughnessParam = Parameters["gMetallicRoughness"];
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shadowMapParam = Parameters["shadowMap"];
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eyePositionParam = Parameters["EyePosition"];
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}
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}
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}
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