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Computer-Graphics - Assignment 2 - Lighting - Solved

ICL/ITRI

Goal
◆Implement 3 types of light sources:

◆  Directional light

◆  Position light (Point light)

◆  Spot light

◆Interact and modify the light source in  runtime.

◆Finish the code in main.cpp, vertex  shader and fragment shader


For Mac


◆ Depend on your device

◆ -10 for those upload “x64” or “Normal Models”

 

                        For Windows           Make Sure exe canrun

Lighting Attribute Reference
◆  Directional light:

◆Position: (1, 1,1)

◆Direction: always pointing at (0,0,0)

◆  Position(point) light

◆Position: (0, 2,1)

◆  Spot light

◆Position: (0, 0, 2)

◆Direction: (0, 0, -1)

◆Exponent: 50

◆Cutoff: 30 degree

Lighting Attribute Reference
◆  Diffuse intensity: (1, 1, 1)

◆  Ambient intensity: (0.15, 0.15, 0.15) ◆ Shininess: 64 ◆ Attenuation:

◆Point light:

◆  Constant: 0.01

◆  Linear: 0.8 ◆ Quadratic: 0.1 ◆Spot light:

◆  Constant: 0.05

◆  Linear: 0.3

◆  Quadratic: 0.6

◆  Please follow the spec bellow, or you would notget  the score of item.

◆  You must make sure your key mapping is exactly  same to ours.

◆  Z/X: switch the model

◆  T: switch to translation mode

◆  S: switch to scale mode

◆  R: switch to rotation mode

◆  L: switch between directional/point/spot  light

◆  K: switch to light editing mode

◆  J: switch to shininess editing mode


◆If you switch mode by T, S, R

◆Apply change on Z axis when scroll the wheel

◆Apply change on X axis when mouse drag horizontally

◆Apply change on Y axis when mouse drag vertically

◆Only rotation should apply X axis when mouse drag vertically, and Y axis when mouse drag horizontally

◆If you switch mode by K

◆Apply change on X axis of light’s position when mouse drag horizontally

◆Apply change on Y axis of light’s position when mouse drag vertically

◆Apply change on diffuse intensity for directional or point light, cutoff angle for spot light when scroll the wheel

◆If you switch mode by J

◆Apply change on shininess when scroll the  wheel

◆The shininess is applied to all models

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