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Generate 1x1 mip level (#2551)

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Just a minor off-by-one error that meant the final 1x1 mip level wasn't being generated. I don't think it makes any substantial difference to the rendered result.
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David A Roberts 2022-03-24 11:19:41 +10:00 committed by GitHub
parent 1be43d8073
commit 46eea16335
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1 changed files with 2 additions and 2 deletions
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wgpu/examples/mipmap/main.rs
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@ -6,7 +6,7 @@ use std::{borrow::Cow, f32::consts, mem, num::NonZeroU32};
use wgpu::util::DeviceExt;
const TEXTURE_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Rgba8UnormSrgb;
const MIP_LEVEL_COUNT: u32 = 9;
const MIP_LEVEL_COUNT: u32 = 10;
const MIP_PASS_COUNT: u32 = MIP_LEVEL_COUNT - 1;
fn create_texels(size: usize, cx: f32, cy: f32) -> Vec<u8> {
@ -213,7 +213,7 @@ impl framework::Example for Example {
device.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
// Create the texture
let size = 1 << MIP_LEVEL_COUNT;
let size = 1 << MIP_PASS_COUNT;
let texels = create_texels(size as usize, -0.8, 0.156);
let texture_extent = wgpu::Extent3d {
width: size,