69 lines
1.7 KiB
C#
69 lines
1.7 KiB
C#
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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 SimpleDepthEffect : Effect
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{
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EffectParameter modelViewProjectionParam;
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Matrix model;
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Matrix view;
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Matrix projection;
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EffectDirtyFlags dirtyFlags = EffectDirtyFlags.All;
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public Matrix Model
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{
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get { return model; }
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set
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{
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model = value;
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dirtyFlags |= EffectDirtyFlags.WorldViewProj;
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}
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}
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public Matrix View
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{
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get { return view; }
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set
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{
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view = value;
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dirtyFlags |= EffectDirtyFlags.WorldViewProj;
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}
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}
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public Matrix Projection
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{
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get { return projection; }
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set
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{
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projection = value;
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dirtyFlags |= EffectDirtyFlags.WorldViewProj;
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}
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}
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public SimpleDepthEffect(GraphicsDevice graphicsDevice) : base(graphicsDevice, Resources.SimpleDepthEffect)
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{
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CacheEffectParameters();
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}
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protected override void OnApply()
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{
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if ((dirtyFlags & EffectDirtyFlags.WorldViewProj) != 0)
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{
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Matrix.Multiply(ref model, ref view, out Matrix modelView);
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Matrix.Multiply(ref modelView, ref projection, out Matrix worldViewProj);
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modelViewProjectionParam.SetValue(worldViewProj);
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dirtyFlags &= ~EffectDirtyFlags.WorldViewProj;
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}
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}
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private void CacheEffectParameters()
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{
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modelViewProjectionParam = Parameters["ModelViewProjection"];
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}
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}
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}
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