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Change format of background sky in camera

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CJSatnarine
2024-07-10 19:14:56 -04:00
parent 7bb8a36f8b
commit 7a96c64c74
7 changed files with 360015 additions and 640009 deletions
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25
camera.h
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@@ -10,7 +10,8 @@ class camera {
double aspectRatio = 1.0; // Ratio of image width over height
int imageWidth = 100; // Rendered image width in pixel count
int samplesPerPixel = 10; // Count of random samples for each pixel.
int maxDepth = 10; // Maximum number of ray bounces into the scene.
int maxDepth = 10; // Maximum number of ray bounces into the scene.
colour background; // Scene background colour.
double vFieldOfView = 90; // Vertical view angle (field of view)
point3 lookFrom = point3(0, 0, 0); // Point camera is looking from.
@@ -120,23 +121,17 @@ class camera {
hitRecord rec;
if (world.hit(r, interval(0.001, infinity), rec)) {
ray scattered;
colour attenuation;
// if hte ray hits nothing, return the background colour.
if (!world.hit(r, interval(0.001, infinity), rec)) return background;
if (rec.mat->scatter(r, rec, attenuation, scattered)) {
return attenuation * rayColour(scattered, depth - 1, world);
}
return colour(0, 0, 0);
}
ray scattered;
colour attenuation;
colour colourFromEmission = rec.mat->emitted(rec.u, rec.v, rec.p);
vec3 unitDirection = unitVector(r.direction());
auto a = 0.5 * (unitDirection.y() + 1.0);
// Blue sky.
return (1.0-a) * colour(1.0, 1.0, 1.0) + a * colour(0.5, 0.7, 1.0);
if (!rec.mat->scatter(r, rec, attenuation, scattered)) return colourFromEmission;
// Red sky.
//return (1.0-a) * colour(0.56, 0.08, 0.08) + a * colour(0.1, 0.0, 0.0);
colour colourFromScatter = attenuation * rayColour(scattered, depth - 1, world);
return colourFromEmission + colourFromScatter;
}
};
#endif