// Update is called once per frame
void LateUpdate()
{
if (null == targetCamera)
{
targetCamera = Camera.main;
}
if (null == targetCamera)
{
return;
}
if (null == reflectionCamera)
{
GameObject g = new GameObject("Reflection Camera");
g.name = "Reflection Camera";
g.transform.parent = transform;
reflectionCamera = g.AddComponent <Camera>();
}
reflectionCamera.targetTexture = null;
Vector3 lossyScale = transform.lossyScale;
Vector3 localScale = transform.localScale;
lossyScale.x = Mathf.Max(lossyScale.x, 0.00000001f);
lossyScale.y = Mathf.Max(lossyScale.y, 0.00000001f);
lossyScale.z = Mathf.Max(lossyScale.z, 0.00000001f);
transform.localScale = new Vector3(localScale.x / lossyScale.x, localScale.y / lossyScale.y, localScale.z / lossyScale.z);
LchCommonResource.CheckRT(ref rt, targetCamera.pixelWidth / (int)textureSise, targetCamera.pixelHeight / (int)textureSise, 16, RenderTextureFormat.Default, true);
reflectionCamera.transform.parent = transform;
reflectionCamera.CopyFrom(targetCamera);
reflectionCamera.targetTexture = rt;
reflectionCamera.cullingMask = cullMark;
reflectionCamera.enabled = false;
var t = targetCamera.transform;
var t2 = reflectionCamera.transform;
var local = transform.worldToLocalMatrix.MultiplyPoint(t.position);
local.y = -local.y;
t2.localPosition = local;
var forward = t.forward;
forward.y = -forward.y;
t2.forward = forward;
var projectionMatrix = GL.GetGPUProjectionMatrix(reflectionCamera.projectionMatrix, false);
var vp = projectionMatrix * t2.worldToLocalMatrix;
Shader.SetGlobalMatrix("_LchReflectionMatrix", vp);
Shader.SetGlobalTexture("_LchReflectionTex", rt);
reflectionCamera.Render();
}
private void OnDisable()
{
reflectionCamera.targetTexture = null;
LchCommonResource.SafeRelease(ref rt);
}
