Program 4 - World

This assignment is due on Friday 3/9.

Introduction

Your goal for this program is to create a simple world scene and allow the user to explore it. Your world must contain at least:

a ground plane
two different types of models scattered throughout the world
- At least one of these models should be hierarchically modeled using primitives that includes a simple animation
- the other should be an .obj shape.

The user is allowed to move through the world (by moving the camera). The user is allowed to move forward, backward, and side to side (relative to their current gaze). The user can also rotate their view to look all round and up and down.

In addition, this world must include a “security camera” and “monitor/screen” that is created using a frame buffer object.

You are allowed the freedom of creativity in terms of creating and arranging models. You are encouraged to make a visually interesting world.

This is an individual assignment. There are a number of tutorials that closely follow the requirements for this program. Make sure you implement and understand your own solution.

The specifics:

Scene

Your program will need to procedurally generate a scene. This scene will include at least:

A ground plane which extends well beyond the current view volume so that the user has a good deal of space to explore.
Two different models.
- One model should be hierarchically modeled containing at least four different components
- One model should be an .obj mesh.
- These models should be spread through out your world across the ground plane.
- You must include either at least 10 different instances of each of the two models, or a combined total of 20 instances.

Camera

Your program should allow the user to move around and explore the world. This will be controlled by moving the camera around in the scene. The camera can be translated using the following keyboard events:

a = move to the left of the current gaze (this should look like a translation not a rotation).
d = move to the right of the current gaze (this should look like a translation not a rotation).
w = move forward in the scene along the current gaze.
s = move backward in the scene along the current gaze.

Note that by “relative to the current gaze” I mean using the camera basis vectors as discussed in class.

In addition the view can be rotated to allow the user to look around the world. Rotation of the view will be controlled using the mouse.

A movement to the right with the mouse should allow the user to rotate their view to look to the left – likewise with a movement to the left. The user should be able to spin their view 360 degrees around.

A mouse movement down should allow the user to look up while a movement up should allow the user to look down. Constrain the vertical movement of the view such that the user can only move a total of 160 degrees (80 degrees up and 80 down).

Once the view has been rotated, all camera translations should be relative to this new view! This should allow the user to completely explore your world. You are allowed freedom to choose the exact speed of the camera motion for rotation and translation but it must be reasonable! That means a user must be able to feel like they can explore the world (i.e. not wait for lag or become confused by rapid motion).

Surveillance Camera

Include an updating “surveillance camera + tv monitor” in your scene (see below figures for an example).

Do this by:

First, capture a view of the scene from the monitor’s position, save this as a frame buffer object.
Then texture this view onto a quad in your scene and which can be viewed from any angle
- Consider making the textured rendering darker or include bordering edges to make your surveillance camera + tv monitor obvious.
- A black-and-white or scanline or pixelated or blurry effect would be interesting.
- Place it somewhere reasonable.

Also place an object in your world that represents the “surveillance camera” - it doesn’t have to actually look like a camera, but just can be used to know where the scene is being rendered from.

Other Notes

You do not need to include any kind of collision detection. This means that a user can walk through your models. You are allowed to include collision detection if you choose to (if so document this in your readme).
Your program should only be rendered in perspective viewing.
Your program should include lighting (models should be correctly shaded). You need to pick a lighting situation that you would like to emulate – i.e. think about your lighting design.
Consider whether you should use a directional light or point light, or spot light, or multiple lights. Place your lights and choose materials that are visually appealing!
You should include at least three different new materials on your models and you must include pixel shaded phong shading – please choose materials and lighting to show this off.
Please feel free to be creative and include as much detail as you’d like in this program, extra credit points will be awarded for extras, however, note that the bulk of the program points are for the basics so get those working first. But do feel free to include more like complex models, animating models, texture mapping, walls, fake shadows, collision detection, fancy shaders, etc., especially as a starting-off point for your final project.

Grading

Point break down:

20 pts for correct camera rotation
20 pts for correct camera translation
15 pts model creation, animation and placement in the world
15 pts for “surveillance camera and tv” using FBO
15 pts for simulated lighting condition
10 pts for general world construction (ie creative, interesting, good materials, etc.)
5 pts for general (code, readme, usability, etc.)

Here are sample screen shots (including optional fake shadows – this is lighting via directional lighting light the sun – the shadows position matches the light direction):

Views of two similar worlds that include the “surveillance camera”, which shows a view of the world from the TV’s perspective: