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2025-05-13 05:19:58 +03:00
parent 853edaf0b4
commit 472b2aee18
1034 changed files with 41844 additions and 0 deletions
@@ -0,0 +1,99 @@
+
+#pragma strict
+
+@script ExecuteInEditMode
+@script RequireComponent (Camera)
+@script AddComponentMenu ("Image Effects/Rendering/Screen Space Ambient Obscurance")
+
+class AmbientObscurance extends PostEffectsBase {
+	@Range (0,3)	
+	public var intensity : float = 0.5;
+	@Range (0.1,3)	
+	public var radius : float = 0.2;
+	@Range (0,3)
+	public var blurIterations : int = 1;
+	@Range (0,5)
+	public var blurFilterDistance : float = 1.25;
+	@Range (0,1)
+	public var downsample : int = 0;
+
+	public var rand : Texture2D;
+	public var aoShader : Shader;
+
+	private var aoMaterial : Material = null;	
+
+	function CheckResources () : boolean {	
+		CheckSupport (true);
+		
+		aoMaterial = CheckShaderAndCreateMaterial (aoShader, aoMaterial);
+		
+		if (!isSupported)
+			ReportAutoDisable ();
+		return isSupported;			
+	}
+
+	function OnDisable () {
+		if(aoMaterial)
+			DestroyImmediate (aoMaterial);
+		aoMaterial = null;
+	}
+	
+	@ImageEffectOpaque
+	function OnRenderImage (source : RenderTexture, destination : RenderTexture) {	
+		if (CheckResources () == false) {
+			Graphics.Blit (source, destination);
+			return;
+		}
+
+		var P : Matrix4x4 = GetComponent(Camera).projectionMatrix;
+		var invP = P.inverse;
+		var projInfo : Vector4 = new Vector4
+	        ((-2.0f / (Screen.width * P[0])), 
+	         (-2.0f / (Screen.height * P[5])),
+	         ((1.0f - P[2]) / P[0]), 
+	         ((1.0f + P[6]) / P[5]));
+
+		aoMaterial.SetVector ("_ProjInfo", projInfo); // used for unprojection
+		aoMaterial.SetMatrix ("_ProjectionInv", invP); // only used for reference
+		aoMaterial.SetTexture ("_Rand", rand); // not needed for DX11 :)
+		aoMaterial.SetFloat ("_Radius", radius);
+		aoMaterial.SetFloat ("_Radius2", radius*radius);
+		aoMaterial.SetFloat ("_Intensity", intensity);
+		aoMaterial.SetFloat ("_BlurFilterDistance", blurFilterDistance);
+
+		var rtW : int = source.width;
+		var rtH : int = source.height;
+
+		var tmpRt : RenderTexture  = RenderTexture.GetTemporary (rtW>>downsample, rtH>>downsample);
+		var tmpRt2 : RenderTexture;
+
+		Graphics.Blit (source, tmpRt, aoMaterial, 0);
+
+		if (downsample > 0) {
+			tmpRt2 = RenderTexture.GetTemporary (rtW, rtH);
+			Graphics.Blit(tmpRt, tmpRt2, aoMaterial, 4);
+			RenderTexture.ReleaseTemporary (tmpRt);
+			tmpRt = tmpRt2;
+
+			// @NOTE: it's probably worth a shot to blur in low resolution 
+			//  instead with a bilat-upsample afterwards ...
+		}
+		
+		for (var i : int = 0; i < blurIterations; i++) {
+			aoMaterial.SetVector("_Axis", Vector2(1.0f,0.0f));
+			tmpRt2 = RenderTexture.GetTemporary (rtW, rtH);
+			Graphics.Blit (tmpRt, tmpRt2, aoMaterial, 1);
+			RenderTexture.ReleaseTemporary (tmpRt);
+
+			aoMaterial.SetVector("_Axis", Vector2(0.0f,1.0f));
+			tmpRt = RenderTexture.GetTemporary (rtW, rtH);
+			Graphics.Blit (tmpRt2, tmpRt, aoMaterial, 1);
+			RenderTexture.ReleaseTemporary (tmpRt2);
+		}
+
+		aoMaterial.SetTexture ("_AOTex", tmpRt);		
+		Graphics.Blit (source, destination, aoMaterial, 2);
+
+		RenderTexture.ReleaseTemporary (tmpRt);
+	}	
+}