61 lines
2.2 KiB
Rust
61 lines
2.2 KiB
Rust
use super::*;
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use crate::core::film::{CreateFilmBase, CreatePixelSensor};
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use shared::core::film::PixelSensor;
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use anyhow::{Result, anyhow};
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use shared::core::film::{FilmBase, GBufferFilm};
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use shared::spectra::RGBColorSpace;
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use shared::utils::AnimatedTransform;
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use std::path::Path;
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impl CreateFilm for GBufferFilm {
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fn create(
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params: &ParameterDictionary,
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exposure_time: Float,
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filter: Filter,
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camera_transform: Option<CameraTransform>,
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loc: &FileLoc,
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arena: &Arena,
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) -> Result<Film> {
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let colorspace = params.color_space.as_ref().unwrap();
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let max_component_value = params.get_one_float("maxcomponentvalue", Float::INFINITY)?;
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let write_fp16 = params.get_one_bool("savefp16", true)?;
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let sensor = PixelSensor::create(params, colorspace.clone(), exposure_time, loc, arena)?;
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let sensor_ptr = arena.alloc(sensor);
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let film_base = FilmBase::create(params, filter, sensor_ptr, loc)?;
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let filename = params.get_one_string("filename", "pbrt.exr")?;
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if Path::new(&filename).extension() != Some("exr".as_ref()) {
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return Err(anyhow!("{}: EXR is the only format supported by GBufferFilm", loc).into());
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}
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let coords_system = params.get_one_string("coordinatesystem", "camera")?;
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let mut apply_inverse = false;
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let camera_transform =
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camera_transform.ok_or_else(|| anyhow!("GBufferFilm requires a camera_transform"))?;
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let output_from_render = if coords_system == "camera" {
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apply_inverse = true;
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camera_transform.render_from_camera
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} else if coords_system == "world" {
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AnimatedTransform::from_transform(&camera_transform.world_from_render)
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} else {
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return Err(anyhow!(
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"{}: unknown coordinate system for GBufferFilm. (Expecting camera
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or world",
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loc
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)
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.into());
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};
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let film = GBufferFilm::new(
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&film_base,
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&output_from_render,
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apply_inverse,
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colorspace,
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max_component_value,
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write_fp16,
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);
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Ok(Film::GBuffer(film))
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}
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}
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