cessen/psychopath
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Fixed incorrect rendering angle.

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The problem was in how the camera rays were generated.
This commit is contained in:
Nathan Vegdahl 2016-05-28 13:05:16 -07:00
parent 1e93e53822
commit 56b5267b7a
2 changed files with 36 additions and 16 deletions
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31
example_scenes/cube.psy
View File

@ -9,8 +9,8 @@ Scene $Scene_fr1 {
}
Camera {
Fov [49.134342]
FocalDistance [0.000000]
ApertureRadius [0.000000]
FocalDistance [9.559999]
ApertureRadius [0.250000]
Transform [0.685881 0.727634 -0.010817 0.000000 -0.317370 0.312469 0.895343 0.000000 -0.654862 0.610666 -0.445245 0.000000 7.481132 -6.507640 5.343665 1.000000]
}
World {
@ -24,6 +24,15 @@ Scene $Scene_fr1 {
Type [Lambert]
Color [0.800000 0.800000 0.800000]
}
MeshSurface $__Plane_ {
Vertices [-1.000000 -1.000000 0.000000 1.000000 -1.000000 0.000000 -1.000000 1.000000 0.000000 1.000000 1.000000 0.000000]
FaceVertCounts [4 ]
FaceVertIndices [0 1 3 2 ]
}
Instance {
Data [$__Plane_]
Transform [0.078868 -0.000000 0.000000 -0.000000 -0.000000 0.078868 -0.000000 0.000000 0.000000 -0.000000 0.078868 -0.000000 -0.000000 0.000000 -0.000000 1.000000]
}
MeshSurface $__Cube_ {
Vertices [1.000000 1.000000 -1.000000 1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 -1.000000 1.000000 -1.000000 1.000000 0.999999 1.000000 0.999999 -1.000001 1.000000 -1.000000 -1.000000 1.000000 -1.000000 1.000000 1.000000 ]
FaceVertCounts [4 4 4 4 4 4 ]
@ -32,15 +41,15 @@ Scene $Scene_fr1 {
Instance {
Data [$__Cube_]
SurfaceShaderBind [$Material]
Transform [1.000000 -0.000000 0.000000 -0.000000 -0.000000 1.000000 -0.000000 0.000000 0.000000 -0.000000 1.000000 -0.000000 -0.000000 0.000000 -0.000000 1.000000]
}
SphereLight $__Lamp {
Color [100.000000 100.000000 100.000000]
Radius [0.100000]
}
Instance {
Data [$__Lamp]
Transform [-0.290865 -0.771101 0.566393 -0.000000 0.955171 -0.199883 0.218391 -0.000000 -0.055189 0.604525 0.794672 -0.000000 0.551084 -0.224861 -7.219975 1.000000]
Transform [1.000000 -0.000000 0.000000 -0.000000 -0.000000 1.000000 -0.000000 0.000000 0.000000 -0.000000 1.000000 -0.000000 -0.000000 0.000000 -1.000000 1.000000]
}
#SphereLight $__Lamp {
# Color [50.000000 50.000000 50.000000]
# Radius [0.100000]
#}
#Instance {
# Data [$__Lamp]
# Transform [0.019856 -0.060763 0.000000 -0.000000 0.015191 0.079422 -0.000000 0.000000 0.000000 -0.000000 1.000000 -0.000000 -0.026851 -0.125233 -4.432303 1.000000]
#}
}
}

21
src/renderer.rs
View File

@ -23,10 +23,18 @@ impl Renderer {
let mut tracer = Tracer::from_assembly(&self.scene.root);
let mut img = Image::new(self.resolution.0, self.resolution.1);
// Render image of ray-traced triangle
// Pre-calculate some useful values related to the image plane
let cmpx = 1.0 / self.resolution.0 as f32;
let cmpy = 1.0 / self.resolution.1 as f32;
let min_x = -1.0;
let max_x = 1.0;
let min_y = -(self.resolution.1 as f32 / self.resolution.0 as f32);
let max_y = self.resolution.1 as f32 / self.resolution.0 as f32;
let x_extent = max_x - min_x;
let y_extent = max_y - min_y;
// Render
for y in 0..img.height() {
for x in 0..img.width() {
let offset = hash_u32(((x as u32) << 16) ^ (y as u32), 0);
@ -35,10 +43,13 @@ impl Renderer {
rays.clear();
for si in 0..self.spp {
let mut ray = {
let filter_x = fast_logit(halton::sample(3, offset + si as u32), 1.5);
let filter_y = fast_logit(halton::sample(4, offset + si as u32), 1.5);
self.scene.camera.generate_ray((x as f32 + filter_x) * cmpx - 0.5,
(y as f32 + filter_y) * cmpy - 0.5,
let filter_x = fast_logit(halton::sample(3, offset + si as u32), 1.5) + 0.5;
let filter_y = fast_logit(halton::sample(4, offset + si as u32), 1.5) + 0.5;
let samp_x = (filter_x + x as f32) * cmpx;
let samp_y = (filter_y + y as f32) * cmpy;
self.scene.camera.generate_ray((samp_x - 0.5) * x_extent,
(0.5 - samp_y) * y_extent,
halton::sample(0, offset + si as u32),
halton::sample(1, offset + si as u32),
halton::sample(2, offset + si as u32))