106 lines
2.8 KiB
Rust
106 lines
2.8 KiB
Rust
use crate::Float;
|
|
use crate::bxdfs::{
|
|
CoatedConductorBxDF, CoatedDiffuseBxDF, ConductorBxDF, DielectricBxDF, DiffuseBxDF, HairBxDF,
|
|
};
|
|
use crate::core::bsdf::BSDF;
|
|
use crate::core::bssrdf::BSSRDF;
|
|
use crate::core::bxdf::BxDF;
|
|
use crate::core::image::Image;
|
|
use crate::core::material::{Material, MaterialEvalContext, MaterialTrait};
|
|
use crate::core::scattering::TrowbridgeReitzDistribution;
|
|
use crate::core::spectrum::{Spectrum, SpectrumTrait};
|
|
use crate::core::texture::{GPUFloatTexture, GPUSpectrumTexture, TextureEvaluator};
|
|
use crate::spectra::{SampledSpectrum, SampledWavelengths};
|
|
use crate::utils::Ptr;
|
|
use crate::utils::math::clamp;
|
|
|
|
#[repr(C)]
|
|
#[derive(Clone, Copy, Debug)]
|
|
pub struct DiffuseMaterial {
|
|
pub normal_map: Ptr<Image>,
|
|
pub displacement: Ptr<GPUFloatTexture>,
|
|
pub reflectance: Ptr<GPUSpectrumTexture>,
|
|
}
|
|
|
|
impl MaterialTrait for DiffuseMaterial {
|
|
fn get_bsdf<T: TextureEvaluator>(
|
|
&self,
|
|
tex_eval: &T,
|
|
ctx: &MaterialEvalContext,
|
|
lambda: &SampledWavelengths,
|
|
) -> BSDF {
|
|
let r = tex_eval.evaluate_spectrum(&self.reflectance, ctx, lambda);
|
|
let bxdf = BxDF::Diffuse(DiffuseBxDF::new(r));
|
|
BSDF::new(ctx.ns, ctx.dpdus, Ptr::from(&bxdf))
|
|
}
|
|
|
|
fn get_bssrdf<T>(
|
|
&self,
|
|
_tex_eval: &T,
|
|
_ctx: &MaterialEvalContext,
|
|
_lambda: &SampledWavelengths,
|
|
) -> Option<BSSRDF> {
|
|
todo!()
|
|
}
|
|
|
|
fn can_evaluate_textures(&self, tex_eval: &dyn TextureEvaluator) -> bool {
|
|
tex_eval.can_evaluate(&[], &[self.reflectance])
|
|
}
|
|
|
|
fn get_normal_map(&self) -> Option<&Image> {
|
|
Some(&*self.normal_map)
|
|
}
|
|
|
|
fn get_displacement(&self) -> Ptr<GPUFloatTexture> {
|
|
self.displacement
|
|
}
|
|
|
|
fn has_subsurface_scattering(&self) -> bool {
|
|
false
|
|
}
|
|
}
|
|
|
|
#[repr(C)]
|
|
#[derive(Clone, Copy, Debug)]
|
|
pub struct DiffuseTransmissionMaterial {
|
|
pub image: Ptr<Image>,
|
|
pub displacement: Ptr<GPUFloatTexture>,
|
|
pub reflectance: Ptr<GPUFloatTexture>,
|
|
pub transmittance: Ptr<GPUFloatTexture>,
|
|
pub scale: Float,
|
|
}
|
|
|
|
impl MaterialTrait for DiffuseTransmissionMaterial {
|
|
fn get_bsdf<T: TextureEvaluator>(
|
|
&self,
|
|
_tex_eval: &T,
|
|
_ctx: &MaterialEvalContext,
|
|
_lambda: &SampledWavelengths,
|
|
) -> BSDF {
|
|
todo!()
|
|
}
|
|
fn get_bssrdf<T>(
|
|
&self,
|
|
_tex_eval: &T,
|
|
_ctx: &MaterialEvalContext,
|
|
_lambda: &SampledWavelengths,
|
|
) -> Option<BSSRDF> {
|
|
todo!()
|
|
}
|
|
|
|
fn can_evaluate_textures(&self, tex_eval: &dyn TextureEvaluator) -> bool {
|
|
tex_eval.can_evaluate(&[self.reflectance, self.transmittance], &[])
|
|
}
|
|
|
|
fn get_normal_map(&self) -> Option<&Image> {
|
|
Some(&*self.image)
|
|
}
|
|
|
|
fn get_displacement(&self) -> Ptr<GPUFloatTexture> {
|
|
self.displacement
|
|
}
|
|
|
|
fn has_subsurface_scattering(&self) -> bool {
|
|
false
|
|
}
|
|
}
|