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fix text vertex shader coordinate mapping

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This commit is contained in:
Josh Holtrop 2014-06-24 09:28:20 -04:00
parent eb72558cf7
commit 4ef71dae79
1 changed files with 3 additions and 3 deletions
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6
runtime/shaders/text.v.glsl
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@ -8,9 +8,9 @@ varying vec2 texture_coord_v;
void main(void)
{
// Map coordinates such that:
// (-0.5 .. screen_size.x-0.5) => (-1.0 .. 1.0)
gl_Position = vec4(2.0 * (position.x + coords.x + 0.5) / screen_size.x - 1.0,
2.0 * (position.y + coords.y + 0.5) / screen_size.y - 1.0,
// (0 .. screen_size.x) => (-1.0 .. 1.0)
gl_Position = vec4(2.0 * (position.x + coords.x) / screen_size.x - 1.0,
2.0 * (position.y + coords.y) / screen_size.y - 1.0,
0, 1);
texture_coord_v = coords.zw;
}