53 lines
1.5 KiB
C#
53 lines
1.5 KiB
C#
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using UnityEngine;
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[ExecuteInEditMode]
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public class MrtTest : MonoBehaviour
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{
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[SerializeField] Shader _shader;
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Material _material;
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RenderBuffer[] _mrt;
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void OnEnable()
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{
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var shader = Shader.Find("Hidden/MrtTest");
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_material = new Material(shader);
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_material.hideFlags = HideFlags.DontSave;
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_mrt = new RenderBuffer[2];
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}
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void OnDisable()
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{
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DestroyImmediate(_material);
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_material = null;
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_mrt = null;
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}
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void OnRenderImage(RenderTexture source, RenderTexture destination)
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{
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var rt1 = RenderTexture.GetTemporary(source.width, source.height, 0, RenderTextureFormat.Default);
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var rt2 = RenderTexture.GetTemporary(source.width, source.height, 0, RenderTextureFormat.DefaultHDR);
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_mrt[0] = rt1.colorBuffer;
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_mrt[1] = rt2.colorBuffer;
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// Blit with a MRT.
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Graphics.SetRenderTarget(_mrt, rt1.depthBuffer);
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Graphics.Blit(null, _material, 0);
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// Combine them and output to the destination.
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_material.SetTexture("_SecondTex", rt1);
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_material.SetTexture("_ThirdTex", rt2);
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Graphics.Blit(source, destination, _material, 1);
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RenderTexture.ReleaseTemporary(rt1);
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RenderTexture.ReleaseTemporary(rt2);
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}
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void OnGUI()
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{
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var text = "Supported MRT count: ";
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text += SystemInfo.supportedRenderTargetCount;
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GUI.Label(new Rect(0, 0, 200, 200), text);
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}
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}
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