#version 410 compatibility
-uniform sampler2D gvis_tex, field_tex;
+uniform sampler2D gvis_tex;
+uniform float gvis_scale;
void main()
{
- vec4 gridcol = texture2D(gvis_tex, gl_TexCoord[0].st);
- float field = -texture2D(field_tex, gl_TexCoord[1].st).x;
+ vec2 uv = gl_TexCoord[0].st * vec2(gvis_scale, gvis_scale);
+ vec4 gridcol = texture2D(gvis_tex, uv);
- gl_FragColor.rgb = gridcol.rgb + vec3(field, field, field);
+ gl_FragColor.rgb = gridcol.rgb;
gl_FragColor.a = 1.0;
}