Editing ray

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Code
size_t oldByteSize = width * height * 2; //gray alpha size_t byteSize = width * height * 4; //rgba uint8_t* newData = (uint8_t*)malloc(byteSize); size_t i = 0, j = 0; for(; i < oldByteSize; i+=2, j+=4) { newData[0 + j] = data[i]; newData[1 + j] = data[i]; newData[2 + j] = data[i]; newData[3 + j] = data[i+1]; }

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