我试图在iPhone4上的iOS4.3中将原生平面图像渲染为OpenGLES2.0纹理。然而，纹理最终变成全黑。我的相机配置如下:[videoOutputsetVideoSettings:[NSDictionarydictionaryWithObject:[NSNumbernumberWithInt:kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange]forKey:(id)kCVPixelBufferPixelFormatTypeKey]];我像这样将像素数据传递给我的纹理:glTexImage2D(GL_TEXTURE_2D,0,GL_RG

目前，BlendModes(减去、排除等)使用LauncherImage作为mask。我可以将这些BlendMode应用于ColorMatrix吗？我正在使用GPUImageLibrary:colorMatrix[0.393,0.7689999,0.18899999,0,0,0.349,0.6859999,0.16799999,0,0,0.272,0.5339999,0.13099999,0,0,0,0,0,1,0];SubtractBlendFilter.javapublicclassGPUImageSubtractBlendFilterextendsGPUImageTwoInput

目前，BlendModes(减去、排除等)使用LauncherImage作为mask。我可以将这些BlendMode应用于ColorMatrix吗？我正在使用GPUImageLibrary:colorMatrix[0.393,0.7689999,0.18899999,0,0,0.349,0.6859999,0.16799999,0,0,0.272,0.5339999,0.13099999,0,0,0,0,0,1,0];SubtractBlendFilter.javapublicclassGPUImageSubtractBlendFilterextendsGPUImageTwoInput