56 lines
1.6 KiB
C#
56 lines
1.6 KiB
C#
using UnityEngine;
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using UnityEngine.UI;
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public class SetRenderTextureSize : MonoBehaviour
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{
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[SerializeField]
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[Range(100, 800)]
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private int resolutionWidth;
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private int oldResolutionWidth;
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private int oldScreenWidth;
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private int oldScreenHeight;
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[SerializeField]
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private RawImage renderImage;
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// Start is called once before the first execution of Update after the MonoBehaviour is created
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void Start()
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{
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RecalculateTexture();
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}
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void Update()
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{
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if (resolutionWidth != oldResolutionWidth || Screen.width != oldScreenWidth || Screen.height != oldScreenHeight)
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{
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RecalculateTexture();
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}
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}
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private void RecalculateTexture()
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{
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Camera camera = gameObject.GetComponent<Camera>();
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if (camera.targetTexture != null) {
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camera.targetTexture.Release();
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}
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float aspectRatio = (float)Screen.width / Screen.height;
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int resolutionHeight = Mathf.RoundToInt(resolutionWidth / aspectRatio);
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if (resolutionHeight < 1)
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{
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resolutionHeight = 1;
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}
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camera.targetTexture = new RenderTexture( resolutionWidth, resolutionHeight, 24 );
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camera.targetTexture.filterMode = FilterMode.Point;
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camera.targetTexture.wrapMode = TextureWrapMode.Clamp;
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renderImage.texture = camera.targetTexture;
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renderImage.color = new Color(renderImage.color.r, renderImage.color.g, renderImage.color.b, 255);
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oldResolutionWidth = resolutionWidth;
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oldScreenWidth = Screen.width;
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oldScreenHeight = Screen.height;
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}
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}
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