In this visual effects tutorial, I will guide you on how to add 3D objects into still image.
1. Adobe Photoshop
Firstly, you need to create a new Scene in Maya. After you have done the first step, please select the Perspective Viewport as your primary workplace. Then, assign the image (original) to the Perspective Camera Image Plane. Then you need to play around with the camera Focal Length, Translate and Rotate until the grid perspective is blend to the image. Don’t forget to lock it after that to avoid accidentally adjust the camera angle.
After you have done the Step 1, you can put the 3D objects that you have modeled previously into the workspace. The arrangement of the objects is depend on your own creativity. After you have rendered, you can save the image as PSD, PNG or GIF (anything that have Alpha channel).
The result looks a bit unrealistic after the combination between 3D objects and original image. It’s due to the 3D objects look very perfect. To fix this, you need to put some shadow. To add some shadow, you can use Burn or Paint tools. Then, you can use the Blur tool to add some depth of field mood to show the perspective.
Thanks for reading my simple tutorial. If you got any question, do not hesitate to ask in here. I am happy to guide you.