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prevent StackOverflowError in SimpleRenderer

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jbb01 2024-08-05 16:40:53 +02:00
parent 580d8eca12
commit c002b8215a
1 changed files with 17 additions and 9 deletions
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26
src/main/java/eu/jonahbauer/raytracing/render/renderer/SimpleRenderer.java
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@ -86,20 +86,28 @@ public final class SimpleRenderer implements Renderer {
} }
private @NotNull Color getColor0(@NotNull Scene scene, @NotNull Ray ray, int depth) { private @NotNull Color getColor0(@NotNull Scene scene, @NotNull Ray ray, int depth) {
if (depth <= 0) return Color.BLACK; var color = Color.BLACK;
var attenuation = Color.WHITE;
while (depth-- > 0) {
var optional = scene.hit(ray, new Range(0.001, Double.POSITIVE_INFINITY));
if (optional.isEmpty()) {
color = Color.add(color, Color.multiply(attenuation, scene.getBackgroundColor(ray)));
break;
}
var optional = scene.hit(ray, new Range(0.001, Double.POSITIVE_INFINITY));
if (optional.isPresent()) {
var hit = optional.get(); var hit = optional.get();
var material = hit.material(); var material = hit.material();
var emitted = material.emitted(hit); var emitted = material.emitted(hit);
return material.scatter(ray, hit) var scatter = material.scatter(ray, hit);
.map(scatter -> Color.multiply(scatter.attenuation(), getColor0(scene, scatter.ray(), depth - 1))) color = Color.add(color, Color.multiply(attenuation, emitted));
.map(color -> Color.add(color, emitted))
.orElse(emitted); if (scatter.isEmpty()) break;
} else { attenuation = Color.multiply(attenuation, scatter.get().attenuation());
return scene.getBackgroundColor(ray); ray = scatter.get().ray();
} }
return color;
} }
/** /**