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Only rasterize data within bounds

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This commit is contained in:
Dennis Kobert
2025-09-20 11:28:02 +02:00
parent 397068b32b
commit aade019019
1 changed files with 38 additions and 6 deletions
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44
node-graph/libraries/wgpu-executor/src/vector_to_raster.rs
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@@ -1,7 +1,9 @@
use crate::WgpuExecutor;
use core_types::bounds::{BoundingBox, RenderBoundingBox};
use core_types::ops::Convert;
use core_types::table::Table;
use core_types::transform::Footprint;
use glam::{DAffine2, DVec2, UVec2};
use graphic_types::Vector;
use graphic_types::raster_types::{GPU, Raster};
use rendering::{Render, RenderOutputType, RenderParams};
@@ -19,22 +21,51 @@ impl<'i> Convert<Table<Raster<GPU>>, &'i WgpuExecutor> for Table<Vector> {
footprint,
..Default::default()
};
log::debug!("rasterizing vector data with footprint {footprint:?}");
let vector = &self;
log::debug!("{vector:?}");
let bounding_box = vector.bounding_box(DAffine2::IDENTITY, true);
let RenderBoundingBox::Rectangle(rect) = bounding_box else {
panic!("did not find valid bounding box")
};
// Create a Vello scene for this vector
let mut scene = vello::Scene::new();
let mut context = crate::RenderContext::default();
// Render the vector to the Vello scene with the row's transform
vector.render_to_vello(&mut scene, footprint.transform, &mut context, &render_params);
let viewport_bounds = footprint.viewport_bounds_in_local_space();
log::debug!("viewport bounds: {viewport_bounds:?}");
log::debug!("vector bounds: {bounding_box:?}");
let image_bounds = core_types::math::bbox::AxisAlignedBbox { start: rect[0], end: rect[1] };
let intersection = viewport_bounds.intersect(&image_bounds);
log::debug!("intersection: {intersection:?}");
let size = intersection.size();
// let offset = (intersection.start - image_bounds.start).max(DVec2::ZERO);
let offset = (intersection.start - image_bounds.start).max(DVec2::ZERO) + image_bounds.start;
log::debug!("size: {size} offset: {offset}");
// If the image would not be visible, return an empty image
if size.x <= 0. || size.y <= 0. {
return Table::new();
}
let scale = footprint.scale();
log::debug!("scale: {scale:?}");
let width = (size.x * scale.x) as u32;
let height = (size.y * scale.y) as u32;
// Render the scene to a GPU texture
let resolution = footprint.resolution;
let resolution = UVec2::new(width, height);
log::debug!("resolution: {resolution:?}");
let background = core_types::Color::TRANSPARENT;
let render_transform = DAffine2::from_scale(scale) * DAffine2::from_translation(-offset);
log::debug!("render transform: {render_transform:?}");
// Render the vector to the Vello scene with the row's transform
vector.render_to_vello(&mut scene, render_transform, &mut context, &render_params);
// Use async rendering to get the texture
let texture = executor
.render_vello_scene_to_texture(&scene, resolution, &context, background)
@@ -67,7 +98,8 @@ impl<'i> Convert<Table<Raster<GPU>>, &'i WgpuExecutor> for Table<Vector> {
queue.submit([command_buffer]);
let mut table = Table::new_from_element(Raster::new_gpu(new_texture));
*(table.get_mut(0).as_mut().unwrap().transform) = footprint.transform.inverse() * DAffine2::from_scale((texture.width() as f64, texture.height() as f64).into());
*(table.get_mut(0).as_mut().unwrap().transform) = DAffine2::from_translation(offset) * DAffine2::from_scale(size);
texture.destroy();
table
}
}