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authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/exr/examples/3a_write_dynamic_channels_with_metadata.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/exr/examples/3a_write_dynamic_channels_with_metadata.rs')
-rw-r--r--vendor/exr/examples/3a_write_dynamic_channels_with_metadata.rs78
1 files changed, 0 insertions, 78 deletions
diff --git a/vendor/exr/examples/3a_write_dynamic_channels_with_metadata.rs b/vendor/exr/examples/3a_write_dynamic_channels_with_metadata.rs
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--- a/vendor/exr/examples/3a_write_dynamic_channels_with_metadata.rs
+++ /dev/null
@@ -1,78 +0,0 @@
-
-#[macro_use]
-extern crate smallvec;
-extern crate rand;
-extern crate half;
-
-use rand::Rng;
-
-// exr imports
-extern crate exr;
-
-
-/// Generate a noisy image and write it to a file,
-/// also attaching some meta data.
-fn main() {
- use exr::prelude::*;
-
- fn generate_f16_vector(size: Vec2<usize>) -> Vec<f16> {
- let mut values = vec![ f16::from_f32(0.5); size.area() ];
-
- for _ in 0..(1024*1024/3)/4 {
- let index = rand::thread_rng().gen_range(0 .. values.len());
- let value = 1.0 / rand::random::<f32>() - 1.0;
- let value = if !value.is_normal() || value > 1000.0 { 1000.0 } else { value };
- values[index] = f16::from_f32(value);
- }
-
- values
- }
-
- let size = (1024, 512);
-
- let r = AnyChannel::new(
- "R", FlatSamples::F16(generate_f16_vector(size.into()))
- );
-
- let g = AnyChannel::new(
- "G", FlatSamples::F16(generate_f16_vector(size.into()))
- );
-
- let b = AnyChannel::new(
- "B", FlatSamples::F32(generate_f16_vector(size.into()).into_iter().map(f16::to_f32).collect())
- );
-
- let a = AnyChannel::new(
- "A", FlatSamples::F32(generate_f16_vector(size.into()).into_iter().map(f16::to_f32).collect())
- );
-
- let mut layer_attributes = LayerAttributes::named("test-image");
- layer_attributes.owner = Some(Text::from("It's you!"));
- layer_attributes.comments = Some(Text::from("This image was procedurally generated"));
-
- let layer = Layer::new(
- size,
- layer_attributes,
- Encoding::default(),
- AnyChannels::sort(smallvec![ r, g, b, a ]),
- );
-
- // crop away transparent pixels from the border
- let layer = layer
-
- // channel order is (a,b,g,r), as channels are already sorted
- .crop_where(|samples| samples[0].is_zero())
-
- // throw error if the image is 100% transparent pixels and should be removed
- .or_none_if_empty().expect("image is empty and cannot be cropped");
-
- let image = Image::from_layer(layer);
-
- println!("writing image {:#?}", image);
-
- image.write()
- .on_progress(|progress| println!("progress: {:.1}", progress*100.0))
- .to_file("noisy.exr").unwrap();
-
- println!("created file noisy.exr");
-} \ No newline at end of file