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Raytracer
A raytracer is a way of rendering graphics through simulating the path that light takes in a scene, with each pixel representing one originating ray. If this ray collides with any object, it will generate additional rays based on the state of the scene (e.g. material attributes of an object like reflectivity, or looking for lights in the scene).
My implementation of a raytracer allows you to have the following fields:
Arrays
- cameras: An array of cameras that will be rendered to images.
- objects: An array of non-camera objects that will be rendered in the scene.
Objects
-
camera: A camera that will render the scene.
-
cuboid: A six-faced object with all the sides made up by rectangles. (This one is just made up of six plane objects).
-
disk: A two-dimensional circular object.
-
infplane: A two-dimensional object that continues infinitely (this is technically a plane).
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light: A point light source.
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plane: A two-dimensional rectangular object with fixed dimensions.
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sphere: A sphere.
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triangle: A two-dimensional triangular object.
-
quad: A two-dimensional object with four sides. (This one is just made up of two triangle objects).
Link to this render
Suggested settings:
#scene={"cameras":[{"type":"camera","origin":[0,5,-1],"look":[0,0,2],"perspective":true,"z":[2,100],"width":10,"csize":[500,300]},{"type":"camera","origin":[0,0,-1],"look":[0,0,1],"perspective":true,"z":[2,100],"width":10}],"objects":[{"type":"plane","origin":[0,0,1],"up":[0,1,0],"normal":[0,0,-1],"size":[5,4],"material":{"color":[1,1,1]}},{"type":"infplane","origin":[0,0,2],"up":[0,1,0],"normal":[0,0,-1],"material":{"color":[1,1,1],"reflection":0}},{"type":"light","origin":[3,-3,-2],"color":[1,0,0]},{"type":"light","origin":[-3,-3,-2],"color":[0,1,0]},{"type":"light","origin":[0,4,-2],"color":[0,0,1]}]}
#scene={"cameras":[{"type":"camera","origin":[0,0,-2],"forward":[0,0,1],"up":[0,1,0],"perspective":false,"z":[1,10],"width":5}],"objects":[{"type":"sphere","origin":[-0.7,-0.7,5],"radius":2,"material":{"color":[1,0,0]}},{"type":"sphere","origin":[0,0.7,5],"radius":2,"material":{"color":[0,1,0]}},{"type":"sphere","origin":[0.7,-0.7,5],"radius":2,"material":{"color":[0,0,1]}},{"type":"light","origin":[0,0,-3],"color":[1,1,1]}]}
#scene={"cameras":[{"type":"camera","origin":[0,0,0],"forward":[0,0,1],"up":[0,1,0],"z":[0,10],"perspective":false,"width":10}],"objects":[{"type":"light","origin":[0,10,0],"color":[1,1,1]},{"type":"sphere","origin":[0,0,5],"radius":2,"material":{"color":[1,0,0]}},{"type":"disk","origin":[0,0,10],"normal":[-0.3,0,-1],"radius":4,"material":{"color":[0,1,0],"reflection":0.5}}]}
#scene={"cameras":[{"type":"camera","origin":[0,3,0],"forward":[0,-1,0],"up":[0,0,1],"z":[2,10],"perspective":true,"width":5}],"objects":[{"type":"light","origin":[0,5,5],"color":[1,1,1]},{"type":"sphere","origin":[0,0,0],"radius":2,"material":{"color":[1,1,1]}},{"type":"plane","origin":[0,0,0],"normal":[0,1,0],"up":[0,0,1],"size":[10,10],"material":{"color":[0.3,0.3,0.3]}}]}
#scene={"cameras":[{"type":"camera","origin":[0,1,0],"forward":[0,0,1],"up":[0,1,0],"z":[0,10],"perspective":false,"width":10}],"objects":[{"type":"sphere","origin":[0,0,5],"radius":1,"material":{"color":[0,0,1]}},{"type":"plane","origin":[0,3,5],"normal":[0,1,1],"up":[-1,0,0],"size":[5,5],"material":{"color":[0,1,0]}},{"type":"plane","origin":[0,-3,5],"normal":[0,1,1],"up":[-1,0,0],"size":[5,5],"light":1,"samples":[10,10],"material":{"color":[1,1,1]}}]}
#scene={"cameras":[{"type":"camera","origin":[0,0,0],"look":[0,0,1],"perspective":true,"z":[1,100],"width":1.5}],"objects":[{"type":"light","origin":[1,1,-1],"color":[1,1,1]},{"type":"cuboid","origin":[0,0,5],"size":[3,3,3],"up":[0,1,1],"front":[1,-1,1],"material":{"color":[1,0,0]}}]}
#scene={"cameras":[{"type":"camera","origin":[3,1,4],"forward":[-3,-2,-4],"look":[0,-1,0],"perspective":true,"z":[2,100],"csize":[400,300],"width":5}],"objects":[{"type":"cuboid","origin":[0,0,0],"size":[10,5,8],"up":[0,1,0],"front":[0,0,1],"material":{"color":[0.6,0.6,0.6]}},{"type":"cuboid","origin":[0,-2,2],"size":[2,1,2],"up":[0,1,0],"front":[0,0,1],"material":{"color":[1,0.1,0.1]}},{"type":"cuboid","origin":[0,-2,-2],"size":[2,1,2],"up":[0,1,0],"front":[0,0,1],"material":{"color":[0.1,1,0.1]}},{"type":"plane","origin":[-2.5,2.48,0],"normal":[0,1,0],"up":[0,0,1],"size":[1,1],"light":1,"samples":[5,5],"material":{"color":[0.9,0.9,0.9]}},{"type":"plane","origin":[2.5,2.48,0],"normal":[0,1,0],"up":[0,0,1],"size":[1,1],"light":1,"samples":[5,5],"material":{"color":[0.9,0.9,0.9]}},{"type":"sphere","origin":[0,-0.5,2],"radius":1,"material":{"color":[1,1,1],"reflection":1}},{"type":"sphere","origin":[0,-0.5,-2],"radius":1,"material":{"color":[1,1,1],"reflection":1}}]}
#scene={"cameras":[{"type":"camera","origin":[278,273,-800],"forward":[0,0,1],"up":[0,-1,0],"perspective":true,"z":[0.35,100],"width":0.23}],"objects":[{"type":"plane","origin":[278,548.7,279.5],"normal":[0,1,0],"up":[0,0,1],"size":[130,105],"light":1,"samples":[5,5],"material":{"color":[1,1,1]}},{"type":"quad","v1":[552.8,0,0],"v2":[0,0,0],"v3":[0,0,559.2],"v4":[549.6,0,559.2],"material":{"color":[1,1,1]}},{"type":"quad","v1":[556.0,548.8,0],"v2":[556.0,548.8,559.2],"v3":[0.0,548.8,559.2],"v4":[0.0,548.8,0.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[549.6,0.0,559.2],"v2":[0.0,0.0,559.2],"v3":[0.0,548.8,559.2],"v4":[556.0,548.8,559.2],"material":{"color":[1,1,1]}},{"type":"quad","v1":[0.0,0.0,559.2],"v2":[0.0,0.0,0.0],"v3":[0.0,548.8,0.0],"v4":[0.0,548.8,559.2],"material":{"color":[1,0,0]}},{"type":"quad","v1":[552.8,0.0,0.0],"v2":[549.6,0.0,559.2],"v3":[556.0,548.8,559.2],"v4":[556.0,548.8,0.0],"material":{"color":[0,1,0]}},{"type":"quad","v1":[130.0,165.0,65.0],"v2":[82.0,165.0,225.0],"v3":[240.0,165.0,272.0],"v4":[290.0,165.0,114.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[290.0,0.0,114.0],"v2":[290.0,165.0,114.0],"v3":[240.0,165.0,272.0],"v4":[240.0,0.0,272.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[130.0,0.0,65.0],"v2":[130.0,165.0,65.0],"v3":[290.0,165.0,114.0],"v4":[290.0,0.0,114.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[82.0,0.0,225.0],"v2":[82.0,165.0,225.0],"v3":[130.0,165.0,65.0],"v4":[130.0,0.0,65.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[240.0,0.0,272.0],"v2":[240.0,165.0,272.0],"v3":[82.0,165.0,225.0],"v4":[82.0,0.0,225.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[423.0,330.0,247.0],"v2":[265.0,330.0,296.0],"v3":[314.0,330.0,456.0],"v4":[472.0,330.0,406.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[423.0,0.0,247.0],"v2":[423.0,330.0,247.0],"v3":[472.0,330.0,406.0],"v4":[472.0,0.0,406.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[472.0,0.0,406.0],"v2":[472.0,330.0,406.0],"v3":[314.0,330.0,456.0],"v4":[314.0,0.0,456.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[314.0,0.0,456.0],"v2":[314.0,330.0,456.0],"v3":[265.0,330.0,296.0],"v4":[265.0,0.0,296.0],"material":{"color":[1,1,1]}},{"type":"quad","v1":[265.0,0.0,296.0],"v2":[265.0,330.0,296.0],"v3":[423.0,330.0,247.0],"v4":[423.0,0.0,247.0],"material":{"color":[1,1,1]}}]}
#scene={"cameras":[{"type":"camera","origin":[0,-1.5,-1],"forward":[0,0,1],"up":[0,-1,0],"perspective":true,"z":[0.5,100],"csize":[400,300],"width":1,"maxIterations":5}],"objects":[{"type":"cuboid","origin":[0,0,0],"size":[8,5,5],"up":[0,1,0],"front":[0,0,1],"material":{"color":[0.8,0.8,0.8],"reflection":0.9}},{"type":"plane","origin":[0,2.48,0],"normal":[0,1,0],"up":[0,0,1],"size":[1,1],"light":1,"samples":[5,5],"material":{"color":[0.9,0.9,0.9]}},{"type":"sphere","origin":[0,-1.5,2],"radius":1,"material":{"color":[1,1,1],"reflection":1}},{"type":"sphere","origin":[0,-1.5,-3],"radius":1,"material":{"color":[1,1,1],"reflection":1}}]}
#scene={"cameras":[{"type":"camera","origin":[0,0,0],"look":[0,0,1],"perspective":false,"z":[0,100],"width":10}],"objects":[{"type":"sphere","origin":[0,0,-10],"radius":8,"material":{"color":[1,0,0],"reflection":0}},{"type":"infplane","origin":[0,0,2],"up":[0,1,0],"normal":[0,0,-1],"material":{"color":[0,1,1],"reflection":0.5}},{"type":"light","origin":[0,0,1],"color":[1,1,1]}]}
#scene={"cameras":[{"type":"camera","origin":[0,0,0],"look":[0,0,1],"perspective":true,"z":[1,100],"width":10}],"objects":[{"type":"infplane","origin":[0,0,2],"up":[0,1,0],"normal":[0,0,-1],"material":{"color":[0,0,1],"transparency":0.5}},{"type":"infplane","origin":[0,0,4],"up":[0,1,0],"normal":[0,0,-1],"material":{"color":[1,0,0]}},{"type":"light","origin":[0,0,-1],"color":[1,1,1]},{"type":"light","origin":[0,0,3],"color":[1,1,1]}]}