From 43cdd2176190797e67f69f80a1981744198f4ee9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=98=D0=BB=D1=8C=D1=8F=20=D0=91=D0=B5=D0=BB=D0=BE=D0=B2?=
 <bkmz.0000@mail.ru>
Date: Thu, 19 Dec 2024 23:55:53 +0300
Subject: [PATCH] Another fix for fragment shader

---
 prismarine-viewer/examples/Cube.frag.wgsl | 17 ++---------------
 prismarine-viewer/examples/Cube.vert.wgsl | 17 +++++++----------
 2 files changed, 9 insertions(+), 25 deletions(-)

diff --git a/prismarine-viewer/examples/Cube.frag.wgsl b/prismarine-viewer/examples/Cube.frag.wgsl
index f17d8c2c7..98d58f2e1 100644
--- a/prismarine-viewer/examples/Cube.frag.wgsl
+++ b/prismarine-viewer/examples/Cube.frag.wgsl
@@ -1,25 +1,12 @@
 @group(0) @binding(1) var mySampler: sampler;
 @group(0) @binding(2) var myTexture: texture_2d<f32>;
-@group(0) @binding(5) var<uniform> tileSize: vec2<f32>;
 
 @fragment
 fn main(
   @location(0) fragUV: vec2f,
-  @location(2) @interpolate(flat) ColorBlend: vec3f,
-   @location(3) @interpolate(flat) ChunkOpacity: f32
+  @location(1) @interpolate(flat) ColorBlend: vec4f,
 ) -> @location(0) vec4f {
   let pixelColor = textureSample(myTexture, mySampler, fragUV);
   // return vec4f(pixelColor.rgb * ColorBlend / 255, pixelColor.a); // Set alpha to 1.0 for full opacity
-  return vec4f(pixelColor.rgb * ColorBlend / 255, 1.0 * ChunkOpacity); // Set alpha to 1.0 for full opacity
-//   only gray:
-//   let t = textureSample(myTexture, mySampler, fragUV / tilesPerTexture + vec2f(trunc(TextureIndex % tilesPerTexture.y), trunc(TextureIndex / tilesPerTexture.x)) / tilesPerTexture);
-//   // return vec4f(pixelColor.rgb * ColorBlend / 255, pixelColor.a); // Set alpha to 1.0 for full opacity
-
-//    if (abs(t.x-t.y) <=0.03 || abs(t.x-t.z)<=0.03 ||abs(t.y-t.z) <=0.03)
-//     {
-//        return vec4f(t.rgb * ColorBlend / 255, 1.0);
-//     }
-//     else {
-//        return vec4f(t.rgb, 1.0);
-//     }
+  return vec4f(pixelColor.rgb, 1.0) * ColorBlend; // Set alpha to 1.0 for full opacity
 }
diff --git a/prismarine-viewer/examples/Cube.vert.wgsl b/prismarine-viewer/examples/Cube.vert.wgsl
index 490d3275a..764411217 100644
--- a/prismarine-viewer/examples/Cube.vert.wgsl
+++ b/prismarine-viewer/examples/Cube.vert.wgsl
@@ -24,8 +24,7 @@ struct CubeModel {
 struct VertexOutput {
   @builtin(position) Position: vec4f,
   @location(0) fragUV: vec2f,
-  @location(2) @interpolate(flat) ColorBlend: vec3f,
-  @location(3) @interpolate(flat) ChunkOpacity: f32
+  @location(1) @interpolate(flat) ColorBlend: vec4f,
 }
 @group(1) @binding(0) var<storage, read> cubes: array<Cube>;
 @group(0) @binding(0) var<uniform> ViewProjectionMatrix: mat4x4<f32>;
@@ -59,11 +58,9 @@ fn main(
 
   let cube_position = vec4f(positionX, positionY, positionZ, 0.0);
 
-  let colorBlendR : f32 = f32(cube.cube[1] & 255);
-  let colorBlendG : f32 = f32((cube.cube[1] >> 8) & 255);
-  let colorBlendB : f32 = f32((cube.cube[1] >> 16) & 255);
-  let colorBlend = vec3f(colorBlendR, colorBlendG, colorBlendB);
-
+  var colorBlend = vec4f(unpack4xU8(cube.cube[1]));
+  colorBlend.a = f32(chunk.opacity);
+  colorBlend /= 255;
   var normal : mat4x4<f32>;
   var Uv = vec2(uv.x, (1.0 - uv.y));
   normal = rotatations[normalIndex];
@@ -95,13 +92,13 @@ fn main(
     }
   }
 
-  let textureSize: vec2<f32> = vec2<f32>(textureDimensions(myTexture));
-  let tilesPerTexture: vec2<f32> = textureSize / tileSize;
+  let textureSize = vec2f(textureDimensions(myTexture));
+  let tilesPerTexture= textureSize / tileSize;
   Uv = vec2(Uv / tilesPerTexture + vec2f(trunc(f32(textureIndex) % tilesPerTexture.y), trunc(f32(textureIndex) / tilesPerTexture.x)) / tilesPerTexture);
+
   var output: VertexOutput;
   output.Position = ViewProjectionMatrix * (position * normal + cube_position);
   output.fragUV = Uv;
-  output.ChunkOpacity = f32(chunk.opacity) / 255;
   output.ColorBlend = colorBlend;
   return output;
 }