From: Roland Scheidegger Date: Wed, 3 Feb 2010 17:27:32 +0000 (+0100) Subject: docs: clean up TGSI_SEMANTIC_PSIZE description X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8091e73cc2142945c297191a9b746be71360ef26;p=mesa.git docs: clean up TGSI_SEMANTIC_PSIZE description there was some confusion between point size state and point size output. --- diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index ebee4902b05..ef068448e83 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -1231,10 +1231,8 @@ TGSI_SEMANTIC_PSIZE """"""""""""""""""" PSIZE, or point size, is used to specify point sizes per-vertex. It should -be in ``(p, n, x, f)`` format, where ``p`` is the point size, ``n`` is the minimum -size, ``x`` is the maximum size, and ``f`` is the fade threshold. - -XXX this is arb_vp. is this what we actually do? should double-check... +be in ``(s, 0, 0, 1)`` format, where ``s`` is the (possibly clamped) point size. +Only the first component matters when writing from the vertex shader. When using this semantic, be sure to set the appropriate state in the :ref:`rasterizer` first.