Make visualOffset as Absolute scale.

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / graphics / shaders / text-scroller-shader.vert

diff --git a/dali-toolkit/internal/graphics/shaders/text-scroller-shader.vert b/dali-toolkit/internal/graphics/shaders/text-scroller-shader.vert
index 6ea160a..c152b5e 100644 (file)
--- a/dali-toolkit/internal/graphics/shaders/text-scroller-shader.vert
+++ b/dali-toolkit/internal/graphics/shaders/text-scroller-shader.vert
@@ -18,13 +18,13 @@ uniform mediump vec2 anchorPoint;
 
 void main()
 {
-  highp vec2 visualOffset = mix( offset, offset/uSize.xy, offsetSizeMode.xy );
-  highp vec2 visualSize = mix( uSize.xy * size, size, offsetSizeMode.zw );
+  highp vec2 visualSize = mix(size * uSize.xy, size, offsetSizeMode.zw);
+  highp vec2 visualOffset = mix(offset * uSize.xy, offset, offsetSizeMode.xy);
 
   vTexCoord.x = ( uDelta + uHorizontalAlign * ( uTextureSize.x - visualSize.x - uGap ) + aPosition.x * visualSize.x - uGap * 0.5 ) / uTextureSize.x + 0.5;
   vTexCoord.y = ( uVerticalAlign * ( uTextureSize.y - visualSize.y ) + aPosition.y * visualSize.y ) / ( uTextureSize.y ) + 0.5;
 
-  highp vec4 vertexPosition = vec4( ( aPosition + anchorPoint ) * visualSize + ( visualOffset + origin ) * uSize.xy, 0.0, 1.0 );
+  highp vec4 vertexPosition = vec4( ( aPosition + anchorPoint ) * visualSize + visualOffset + origin * uSize.xy, 0.0, 1.0 );
 
   gl_Position = uMvpMatrix * vertexPosition;
 }
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