Image Editing Layers and Compositing 2 — Questions and Answers
Question 1: What is an 'adjustment layer' and why is it preferred over direct adjustments?
- A layer that moves automatically
- A non-destructive layer that applies corrections without permanently altering pixel data (Correct answer)
- A layer that adjusts canvas size
- A locked reference layer
Correct answer: A non-destructive layer that applies corrections without permanently altering pixel data
Adjustment layers apply tonal and color corrections above the image without modifying the original pixels, keeping the workflow reversible.
Question 2: Which blending mode is commonly used for adding texture overlays to images?
- Normal
- Overlay (Correct answer)
- Dissolve
- Exclusion
Correct answer: Overlay
Overlay blending mode multiplies dark areas and screens light areas, adding contrast and texture while preserving the base image's midtones.
Question 3: What does 'opacity' control on a layer?
- The layer's position in the stack
- How transparent the layer is (0% = invisible, 100% = fully opaque) (Correct answer)
- The color mode of the layer
- The blending mode
Correct answer: How transparent the layer is (0% = invisible, 100% = fully opaque)
Layer opacity controls the overall transparency of all pixels and effects on that layer from fully transparent to fully opaque.
Question 4: What is the difference between 'Opacity' and 'Fill' on a Photoshop layer?
- They are identical
- Opacity affects the layer and its effects; Fill affects only the layer pixels, not layer effects like Drop Shadow (Correct answer)
- Fill controls color; Opacity controls blend mode
- There is no difference in most blending modes
Correct answer: Opacity affects the layer and its effects; Fill affects only the layer pixels, not layer effects like Drop Shadow
Fill only reduces the transparency of the actual layer pixels, while Opacity reduces both the pixels and any applied layer styles (effects).
Question 5: In a compositing workflow, why is it important to match the light direction of all combined elements?
- To reduce file size
- To create a believable composite where all elements appear lit by the same light source (Correct answer)
- To synchronize layers
- To equalize color profiles
Correct answer: To create a believable composite where all elements appear lit by the same light source
Mismatched light directions make composited elements look obviously cut-and-pasted, while matching them creates a unified and realistic scene.
Question 6: What is 'layer grouping' useful for in complex composites?
- Locking layers permanently
- Organizing related layers together so they can be managed, moved, and masked as a unit (Correct answer)
- Merging layers destructively
- Automatically applying filters
Correct answer: Organizing related layers together so they can be managed, moved, and masked as a unit
Layer groups allow you to organize related layers, apply a single mask to all of them, and collapse them to reduce clutter in the Layers panel.
Image Editing Layers and Compositing 2
What is an 'adjustment layer' and why is it preferred over direct adjustments?