rust-gpu/tests/ui/image/sample_gradient.rs
2021-08-02 14:02:02 +00:00

21 lines
847 B
Rust

// Test `OpImageSampleExplicitLod` Grad
// build-pass
use spirv_std::{arch, Image, Sampler};
#[spirv(fragment)]
pub fn main(
#[spirv(descriptor_set = 0, binding = 0)] image2d: &Image!(2D, type=f32, sampled),
#[spirv(descriptor_set = 1, binding = 1)] image2d_array: &Image!(2D, type=f32, arrayed, sampled),
#[spirv(descriptor_set = 2, binding = 2)] cubemap: &Image!(3D, type=f32, sampled),
#[spirv(descriptor_set = 3, binding = 3)] sampler: &Sampler,
output: &mut glam::Vec4,
) {
let v2 = glam::Vec2::new(0.0, 1.0);
let v3 = glam::Vec3::new(0.0, 1.0, 0.5);
let r1: glam::Vec4 = image2d.sample_by_gradient(*sampler, v2, v2, v2);
let r2: glam::Vec4 = image2d_array.sample_by_gradient(*sampler, v3, v2, v2);
let r3: glam::Vec4 = cubemap.sample_by_gradient(*sampler, v3, v3, v3);
*output = r1 + r2 + r3;
}