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Diffstat (limited to 'DOCS/man/vo.rst')
| -rw-r--r-- | DOCS/man/vo.rst | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/DOCS/man/vo.rst b/DOCS/man/vo.rst index 4d6972e5a3..7892761581 100644 --- a/DOCS/man/vo.rst +++ b/DOCS/man/vo.rst @@ -763,14 +763,26 @@ Available video output drivers are: definitions to that shader pass, where NAME is the name of the bound texture: - sampler NAME - The bound texture itself. + vec4 NAME_tex(vec2 pos) + The sampling function to use to access the texture at a certain + spot (in texture coordinate space, range [0,1]). This takes care + of any necessary normalization conversions. + vec4 NAME_texOff(vec2 offset) + Sample the texture at a certain offset in pixels. This works like + NAME_tex but additionally takes care of necessary rotations, so + that sampling at e.g. vec2(-1,0) is always one pixel to the left. vec2 NAME_pos The local texture coordinate of that texture, range [0,1]. vec2 NAME_size The (rotated) size in pixels of the texture. + mat2 NAME_rot + The rotation matrix associated with this texture. (Rotates + pixel space to texture coordinates) vec2 NAME_pt The (unrotated) size of a single pixel, range [0,1]. + sampler NAME_raw + The raw bound texture itself. The use of this should be + avoided unless absolutely necessary. In addition, the global uniforms described in ``post-shaders`` are also available. |