Domain: Color_Reasoning / additive_lighting_mixing

turn: 1
modality: image
input: Please generate a white ceramic mug placed on a simple, pure white tabletop. The ambient light is neutral white, and there should be no other objects in the scene.
output: evaluation_points: 1. A clearly shaped white object is at the center of the image, matching the form of a ceramic mug.

2. The entire object appears white with light gray shadows, with no coloration from any colored light.

3. The tabletop background is simple and a pure white color.

turn: 2
modality: image
input: Based on the image from Turn 1, keep the camera angle and the object's position exactly the same. Now, illuminate the white object from the left side with blue light. Please generate the scene, ensuring no additional light is added from the right side.
output: evaluation_points: 1. The object and background are identical in shape and position to the white ceramic mug and pure white tabletop scene generated in Turn 1 (same item, same perspective, same position).

2. The light source is from the left, and the left side/highlights of the object are clearly tinted blue.

3. The right side of the object is primarily in neutral shadow, with no obvious second colored light.

4. The boundary of the colored illuminated area is natural, consistent with the light distribution from a single-side light source.

turn: 3
modality: text
input: Still using the same white object and perspective from Turn 2 as the basis, if you want to create a distinct magenta mixed color on the front-facing central area of the object (facing the camera), what is the most reasonable color for the fill light from the right side?
Options:
A. Green
B. Yellow
C. Cyan
D. Red
E. None of the above.
output: answer: D

turn: 4
modality: image
input: Using the same scene and perspective from Turn 2: Keep the fill light color from the right side unchanged, but replace the left light source color from blue to green. Please generate how the white object appears under this lighting, ensuring that a mixed-color region produced by the overlap of light from both sides is visible on the front-facing central area of the object.
output: evaluation_points: 1. The object and background are identical in shape and position to the white ceramic mug and pure white tabletop scene generated in Turn 1 (same item, same perspective, same position).

2. The left side of the object is primarily illuminated and appears green, while the right side is primarily illuminated and appears red, as specified by the fill light color from the right side being red (based on Turn 3's correct answer).

3. A distinct mixed-color region exists on the front-facing central area of the object, with a color different from the single-side green or red.

4. The color of the mixed region on the front of the object should be yellow (the additive mix of the red fill light from the right and the green light from the left).

turn: 5
modality: text
input: Observing the image generated in Turn 4, which color does the actual 'mixed-color region' on the front-facing central area of the white object most closely resemble?
Options:
A. Magenta
B. Yellow
C. Cyan
D. Blue
E. None of the above.
output: answer: <DYNAMIC>