Michael Maltese 05b4d14bf0 TextureConversionShader: fix syntax error
Fixes a situation where the following invalid GLSL code is generated:

```glsl
float3 texSample0 = texture(samp0, float3(uv0 + float2(0, 0) * sample_offset, 0.0)).rgb;
float3 texSample0 = floor(float3 texSample0 * 63.0) / 63.0;
float3 texSample1 = texture(samp0, float3(uv0 + float2(1, 0) * sample_offset, 0.0)).rgb;
float3 texSample1 = floor(float3 texSample1 * 63.0) / 63.0;
```
2017-04-12 14:23:25 -07:00
..
2017-03-08 01:24:18 -08:00