From bec4ff3aab3e41af572c77dfeabb945e36314b41 Mon Sep 17 00:00:00 2001
From: Alexander Gauggel <agauggel@uni-koblenz.de>
Date: Tue, 21 Sep 2021 12:12:08 +0200
Subject: [PATCH] [#115] Fix motion vector visualisation
---
.../assets/shaders/motionVectorVisualisation.comp | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/projects/indirect_dispatch/assets/shaders/motionVectorVisualisation.comp b/projects/indirect_dispatch/assets/shaders/motionVectorVisualisation.comp
index 1cfb09c8..fdceb575 100644
--- a/projects/indirect_dispatch/assets/shaders/motionVectorVisualisation.comp
+++ b/projects/indirect_dispatch/assets/shaders/motionVectorVisualisation.comp
@@ -21,7 +21,10 @@ void main(){
if(any(greaterThanEqual(coord, outImageRes)))
return;
- vec2 motionVector = texelFetch(sampler2D(inMotion, textureSampler), coord / motionTileSize, 0).rg;
+ vec2 uv = (coord + 0.5) / vec2(outImageRes);
+ ivec2 inTextureRes = textureSize(sampler2D(inMotion, textureSampler), 0);
+
+ vec2 motionVector = texelFetch(sampler2D(inMotion, textureSampler), ivec2(uv * inTextureRes), 0).rg;
vec2 motionVectorNormalized = clamp(motionVector / range, -1, 1);
vec2 color = motionVectorNormalized * 0.5 + 0.5;
--
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