Feeding multiple GPUImageRawDataInput objects as input to shader.

[chetanskumar]

Hi. My shader takes as input two textures, both of the same dimensions:

1. A texture of GL_LUMINANCE type floating point format.
2. A texture of GL_UNSIGNED_BYTE type, BGRA format.

Its output is a GL_UNSIGNED_BYTE type BGRA format texture. My shader is written, but I am unsure of how to pass the two inputs. I have initialised two GPUImageRawDataInput objects with the necessary data, and then have added as target my filter to both the objects. Following the pattern described in RawDataTest, I have implemented the callback block to read data from GPUImageRawDataOutput.

I am calling processData on one of the rawDataInput objects. I'm getting a black image as result. Help on how to pass multiple GPUImageRawDataInput objects as input to the shader would be much appreciated.