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3D Render - Match to a Real Object

Finished Result


Object -  Teacup

Picture

Photography

Using a DSLR camera to take multiply photos of the object's decoration, pay extra attention to avoid any highlight and reflection.
These pictures are then imported into Adobe Photoshop for further adjustment and alignment. "Wrap" tool under "Edit" - "Transform" is very helpful when aligning a series of pictures into flat surface.

Surface Texture

Picture
Picture

Scan

Scan the object on a flatbed scanner to acquire its profile and dimensions.
The scanned result will be imported to Maya for modelling reference purpose.
Picture
The aligned patterns are then color corrected, and clean up into a set of asset images with transparency alpha channel.

3D Modeling

The teacup reference pictures were imported into Autodesk Maya as image plane. Teacup model was made using basic polygon modelling tools.

Texture Painting

Picture
Teacup UV Map
Saucer UV Map
Comparing to the modelling process, the UV mapping is rather simple. Later on,  all texture will be painted using Autodesk Mudbox.
Color Pattern
Scratch
Fingerprints
Surface Bump
Specularity
Glossiness
Surface Bump
Fingerprints
Saucer Diffuse
Teacup Diffuse
Textures are imported into Autodesk Mudbox, and paint on teacup model using projection and stencil tool.
Then, multiple texture layer were painted, included Diffuse Color, Specular Color, Glossiness, Specularity and Bump.

Camera Setup

Picture
A small cube was used as a reference object to line up the camera position.
Picture

Lighting Setup

Picture
The environment reflection image was photographed using a chrome ball, then unwrap into a spherical object for light emission and reflection purpose.

Render Passes

Ambient Occlusion
Direct Illumination
Indirect Illumination
Metal Mask
Shadow 1
Shadow 2
Specular Highlight
Ground Reflection
Object Reflection
Environment Reflection

Compositing


Lighting Study

Outdoor / Daytime / Nature Light

3:00 PM

Overcast

Sky Light

6050K

+20 Tint
Picture

Outdoor / Daytime / Nature Light

3:00 PM

Overcast

Sky Light

5700K

+ 20 Tint
Picture

Indoor / Night / Artificial Light

Tungsten

Light Bulbs

3000K

Color Balance
Picture

Indoor / Night / Nature Light

7:00 PM

1 Hour After Sunset

Overcast

Sky Light

5950K

White Balance
Reflection
Light Reference
Picture

Indoor / Night / Artificial Light

7:30 PM

Tungsten

Light Bulbs

6000K

White Balance
Picture
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