_LanczosShader_texelHeightOffsetUniform = -1;
_LanczosShader_inputImageTextureUniform = -1;
}
// Pre-calculate distortion map
distortParams = new DistortionParams(this.mc.hmdInfo.getHMDInfo(),
this.eyeRenderParams,
this.mc.displayFBWidth,
this.mc.displayFBHeight,
this.mc.vrSettings.useChromaticAbCorrection,
this.mc.vrSettings.useSupersample,