private void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (GetMat != null)
{
GetMat.SetFloat("_BlurSize", mBlurSize);
GetMat.SetMatrix("_PreVPMarix", preVPMarix);
Matrix4x4 currentVPMarix = GetCamera.projectionMatrix * GetCamera.worldToCameraMatrix;
Matrix4x4 currentVPMarixInverse = currentVPMarix.inverse;
GetMat.SetMatrix("_CurVPMarixInverse", currentVPMarixInverse);
preVPMarix = currentVPMarix;
Graphics.Blit(source, destination, GetMat);
}
else
{
Graphics.Blit(source, destination);
}
}
private void OnRenderImage(RenderTexture source, RenderTexture destination)
{
if (GetMat != null)
{
float halfHeight = GetCamera.nearClipPlane * Mathf.Tan(GetCamera.fieldOfView * 0.5f * Mathf.Deg2Rad);
Vector3 toTop = GetCamera.transform.up * halfHeight;
Vector3 toRight = GetCamera.transform.right * halfHeight * GetCamera.aspect;
Vector3 tlRay = GetCamera.transform.forward * GetCamera.nearClipPlane + toTop - toRight;
float scale = tlRay.magnitude / GetCamera.nearClipPlane;
tlRay = tlRay.normalized * scale;
Vector3 trRay = GetCamera.transform.forward * GetCamera.nearClipPlane + toTop + toRight;
trRay = tlRay.normalized * scale;
Vector3 dlRay = GetCamera.transform.forward * GetCamera.nearClipPlane - toTop - toRight;
dlRay = dlRay.normalized * scale;
Vector3 drRay = GetCamera.transform.forward * GetCamera.nearClipPlane - toTop + toRight;
drRay = drRay.normalized * scale;
Matrix4x4 frustumCorners = Matrix4x4.identity;
frustumCorners.SetRow(0, tlRay);
frustumCorners.SetRow(1, trRay);
frustumCorners.SetRow(2, drRay);
frustumCorners.SetRow(3, dlRay);
GetMat.SetFloat("_FogDensity", fogDensity);
GetMat.SetColor("_FogColor", mFogColor);
GetMat.SetFloat("_FogStart", mFogStart);
GetMat.SetFloat("_FogEnd", mFogEnd);
GetMat.SetMatrix("_FrustumCornersRay", frustumCorners);
Graphics.Blit(source, destination, GetMat);
}
else
{
Graphics.Blit(source, destination);
}
}
