Problems encountered using Vertical Scale?

[oOoBinoOo]

Hello, when using VerticalScale, when the coefficient becomes larger, the earth will be enlarged, and there will be a vacancy around it. May I ask how to solve this problem?

[oOoBinoOo]

<terrainshader>
    <uniform name="scale" value="20.0"/>
    <code>
        <![CDATA[
               #pragma vp_entryPoint applyScale
               #pragma vp_location vertex_view

               uniform float scale;
               vec4 oe_layer_tilec;
               vec3 oe_UpVectorView;
               float oe_terrain_getElevation(in vec2);

               void applyScale(inout vec4 vertexView)
               {
                   float e = oe_terrain_getElevation(oe_layer_tilec);
                   vertexView.xyz += oe_UpVectorView*e*(scale-1.0);
               }
             ]]>
    </code>
</terrainshader>

[gwaldron]

This happens because the view frustum is computed on the CPU from the original geometry. But then, you are moving the vertices on the GPU in a shader. The CPU has no knowledge of this so it connect account for the shader's changes. There is nothing to address this in OpenSceneGraph or osgEarth.