44 lines
1.1 KiB
Rust
44 lines
1.1 KiB
Rust
use crate::Float;
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use crate::core::texture::{FloatTexture, SpectrumTexture, TextureEvalContext};
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use crate::spectra::{SampledSpectrum, SampledWavelengths};
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use crate::utils::Ptr;
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#[repr(C)]
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#[derive(Debug, Clone, Copy)]
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pub struct FloatScaledTexture {
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pub tex: Ptr<FloatTexture>,
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pub scale: Ptr<FloatTexture>,
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}
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impl FloatScaledTexture {
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pub fn evaluate(&self, ctx: &TextureEvalContext) -> Float {
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let sc = self.scale.get().map(|t| t.evaluate(ctx)).unwrap();
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if sc == 0. {
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return 0.;
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}
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self.tex.get().map(|t| t.evaluate(ctx)).unwrap_or(0.0) * sc
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}
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}
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#[repr(C)]
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#[derive(Debug, Clone, Copy)]
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pub struct SpectrumScaledTexture {
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pub tex: Ptr<SpectrumTexture>,
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pub scale: Ptr<FloatTexture>,
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}
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impl SpectrumScaledTexture {
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pub fn evaluate(
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&self,
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ctx: &TextureEvalContext,
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lambda: &SampledWavelengths,
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) -> SampledSpectrum {
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let sc = self.scale.get().map(|t| t.evaluate(ctx)).unwrap_or(0.);
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self.tex
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.get()
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.map(|t| t.evaluate(ctx, lambda))
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.unwrap_or(SampledSpectrum::new(0.))
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* sc
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}
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}
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