refactor directional shadow data
parent
4d3c5fc316
commit
4b7d31f2b2
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@ -9,10 +9,8 @@ namespace Kav
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public RenderTarget2D[] ShadowMaps { get; }
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public Matrix LightSpaceMatrixOne { get; set; }
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public Matrix LightSpaceMatrixTwo { get; set; }
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public Matrix LightSpaceMatrixThree { get; set; }
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public Matrix LightSpaceMatrixFour { get; set; }
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public Matrix[] LightSpaceViews { get; }
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public Matrix[] LightSpaceProjections { get; }
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public float[] CascadeFarPlanes { get; }
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@ -27,6 +25,9 @@ namespace Kav
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ShadowMapSize = shadowMapSize;
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NumShadowCascades = (int)MathHelper.Clamp(numCascades, 1, MAX_SHADOW_CASCADES);
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LightSpaceViews = new Matrix[4];
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LightSpaceProjections = new Matrix[4];
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ShadowMaps = new RenderTarget2D[NumShadowCascades];
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for (var i = 0; i < NumShadowCascades; i++)
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93
Renderer.cs
93
Renderer.cs
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@ -518,25 +518,25 @@ namespace Kav
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DeferredDirectionalLightEffect.ShadowMapSize = shadowMapData.ShadowMapSize;
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DeferredDirectionalLightEffect.ShadowMapOne = shadowMapData.ShadowMaps[0];
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DeferredDirectionalLightEffect.LightSpaceMatrixOne = shadowMapData.LightSpaceMatrixOne;
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DeferredDirectionalLightEffect.LightSpaceMatrixOne = shadowMapData.LightSpaceViews[0] * shadowMapData.LightSpaceProjections[0];
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DeferredDirectionalLightEffect.CascadeFarPlanes[0] = shadowMapData.CascadeFarPlanes[0];
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if (shadowMapData.NumShadowCascades > 1)
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{
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DeferredDirectionalLightEffect.ShadowMapTwo = shadowMapData.ShadowMaps[1];
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DeferredDirectionalLightEffect.LightSpaceMatrixTwo = shadowMapData.LightSpaceMatrixTwo;
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DeferredDirectionalLightEffect.LightSpaceMatrixTwo = shadowMapData.LightSpaceViews[1] * shadowMapData.LightSpaceProjections[1];
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DeferredDirectionalLightEffect.CascadeFarPlanes[1] = shadowMapData.CascadeFarPlanes[1];
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}
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if (shadowMapData.NumShadowCascades > 2)
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{
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DeferredDirectionalLightEffect.ShadowMapThree = shadowMapData.ShadowMaps[2];
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DeferredDirectionalLightEffect.LightSpaceMatrixThree = shadowMapData.LightSpaceMatrixThree;
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DeferredDirectionalLightEffect.LightSpaceMatrixThree = shadowMapData.LightSpaceViews[2] * shadowMapData.LightSpaceProjections[2];
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DeferredDirectionalLightEffect.CascadeFarPlanes[2] = shadowMapData.CascadeFarPlanes[2];
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}
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if (shadowMapData.NumShadowCascades > 3)
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{
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DeferredDirectionalLightEffect.ShadowMapFour = shadowMapData.ShadowMaps[3];
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DeferredDirectionalLightEffect.LightSpaceMatrixFour = shadowMapData.LightSpaceMatrixFour;
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DeferredDirectionalLightEffect.LightSpaceMatrixFour = shadowMapData.LightSpaceViews[3] * shadowMapData.LightSpaceProjections[3];
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DeferredDirectionalLightEffect.CascadeFarPlanes[3] = shadowMapData.CascadeFarPlanes[3];
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}
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@ -579,22 +579,22 @@ namespace Kav
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directionalLight.Color.ToVector3() * directionalLight.Intensity;
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Deferred_ToonEffect.ShadowMapOne = shadowMapData.ShadowMaps[0];
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Deferred_ToonEffect.LightSpaceMatrixOne = shadowMapData.LightSpaceMatrixOne;
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Deferred_ToonEffect.LightSpaceMatrixOne = shadowMapData.LightSpaceViews[0] * shadowMapData.LightSpaceProjections[0];
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if (shadowMapData.NumShadowCascades > 1)
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{
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Deferred_ToonEffect.ShadowMapTwo = shadowMapData.ShadowMaps[1];
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Deferred_ToonEffect.LightSpaceMatrixTwo = shadowMapData.LightSpaceMatrixTwo;
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Deferred_ToonEffect.LightSpaceMatrixTwo = shadowMapData.LightSpaceViews[1] * shadowMapData.LightSpaceProjections[1];
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}
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if (shadowMapData.NumShadowCascades > 2)
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{
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Deferred_ToonEffect.ShadowMapThree = shadowMapData.ShadowMaps[2];
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Deferred_ToonEffect.LightSpaceMatrixThree = shadowMapData.LightSpaceMatrixThree;
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Deferred_ToonEffect.LightSpaceMatrixThree = shadowMapData.LightSpaceViews[1] * shadowMapData.LightSpaceProjections[2];
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}
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if (shadowMapData.NumShadowCascades > 3)
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{
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Deferred_ToonEffect.ShadowMapFour = shadowMapData.ShadowMaps[3];
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Deferred_ToonEffect.LightSpaceMatrixFour = shadowMapData.LightSpaceMatrixFour;
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Deferred_ToonEffect.LightSpaceMatrixFour = shadowMapData.LightSpaceViews[2] * shadowMapData.LightSpaceProjections[3];
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}
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Deferred_ToonEffect.ViewMatrix = camera.View;
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@ -602,13 +602,11 @@ namespace Kav
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RenderFullscreenEffect(Deferred_ToonEffect);
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}
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public void RenderDirectionalShadowsIndexed<T>(
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public void PrepareDirectionalShadowData(
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DirectionalShadowMapData shadowMapData,
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PerspectiveCamera camera,
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IEnumerable<(T, Matrix)> drawableTransforms,
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DirectionalLight directionalLight
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) where T : ICullable, IIndexDrawable {
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// render the individual shadow cascades
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) {
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var previousFarPlane = camera.NearPlane;
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for (var i = 0; i < shadowMapData.NumShadowCascades; i++)
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{
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@ -625,11 +623,10 @@ namespace Kav
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farPlane
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);
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RenderDirectionalShadowMapIndexed(
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shadowMapData,
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i,
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shadowCamera,
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drawableTransforms,
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PrepareDirectionalShadowCascade(
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shadowMapData,
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i,
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shadowCamera,
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directionalLight
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);
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@ -638,18 +635,13 @@ namespace Kav
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}
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}
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public void RenderDirectionalShadowMapIndexed<T>(
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private void PrepareDirectionalShadowCascade(
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DirectionalShadowMapData shadowMapData,
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int shadowCascadeIndex,
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PerspectiveCamera camera,
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IEnumerable<(T, Matrix)> drawableTransforms,
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PerspectiveCamera shadowCamera,
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DirectionalLight directionalLight
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) where T : ICullable, IIndexDrawable {
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GraphicsDevice.SetRenderTarget(shadowMapData.ShadowMaps[shadowCascadeIndex]);
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GraphicsDevice.DepthStencilState = DepthStencilState.Default;
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GraphicsDevice.BlendState = BlendState.Opaque;
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var cameraBoundingFrustum = new BoundingFrustum(camera.View * camera.Projection);
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) {
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var cameraBoundingFrustum = new BoundingFrustum(shadowCamera.View * shadowCamera.Projection);
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Vector3[] frustumCorners = cameraBoundingFrustum.GetCorners();
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Vector3 frustumCenter = Vector3.Zero;
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@ -668,8 +660,8 @@ namespace Kav
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BoundingBox lightBox = BoundingBox.CreateFromPoints(frustumCorners);
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SimpleDepthEffect.View = lightView;
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SimpleDepthEffect.Projection = Matrix.CreateOrthographicOffCenter(
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shadowMapData.LightSpaceViews[shadowCascadeIndex] = lightView;
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shadowMapData.LightSpaceProjections[shadowCascadeIndex] = Matrix.CreateOrthographicOffCenter(
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lightBox.Min.X,
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lightBox.Max.X,
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lightBox.Min.Y,
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@ -677,29 +669,38 @@ namespace Kav
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-lightBox.Max.Z - 10f, // TODO: near clip plane needs scene AABB info to get rid of this magic value
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-lightBox.Min.Z
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);
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}
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var lightSpaceMatrix = SimpleDepthEffect.View * SimpleDepthEffect.Projection;
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public void RenderDirectionalShadowsIndexed<T>(
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DirectionalShadowMapData shadowMapData,
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IEnumerable<(T, Matrix)> drawableTransforms
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) where T : ICullable, IIndexDrawable {
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// render the individual shadow cascades
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for (var i = 0; i < shadowMapData.NumShadowCascades; i++)
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{
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RenderDirectionalShadowMapIndexed(
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shadowMapData,
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i,
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drawableTransforms
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);
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}
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}
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if (shadowCascadeIndex == 0)
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{
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shadowMapData.LightSpaceMatrixOne = lightSpaceMatrix;
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}
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else if (shadowCascadeIndex == 1)
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{
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shadowMapData.LightSpaceMatrixTwo = lightSpaceMatrix;
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}
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else if (shadowCascadeIndex == 2)
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{
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shadowMapData.LightSpaceMatrixThree = lightSpaceMatrix;
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}
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else if (shadowCascadeIndex == 3)
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{
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shadowMapData.LightSpaceMatrixFour = lightSpaceMatrix;
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}
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public void RenderDirectionalShadowMapIndexed<T>(
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DirectionalShadowMapData shadowMapData,
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int shadowCascadeIndex,
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IEnumerable<(T, Matrix)> drawableTransforms
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) where T : ICullable, IIndexDrawable {
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GraphicsDevice.SetRenderTarget(shadowMapData.ShadowMaps[shadowCascadeIndex]);
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GraphicsDevice.DepthStencilState = DepthStencilState.Default;
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GraphicsDevice.BlendState = BlendState.Opaque;
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SimpleDepthEffect.View = shadowMapData.LightSpaceViews[shadowCascadeIndex];
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SimpleDepthEffect.Projection = shadowMapData.LightSpaceProjections[shadowCascadeIndex];
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CullAndRenderIndexed(
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GraphicsDevice,
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new BoundingFrustum(lightSpaceMatrix),
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new BoundingFrustum(SimpleDepthEffect.View * SimpleDepthEffect.Projection),
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drawableTransforms,
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SimpleDepthEffect
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);
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