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-rw-r--r--src/mesa/swrast/s_points.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_points.c b/src/mesa/swrast/s_points.c
index 846c485f15..61ff4d0b84 100644
--- a/src/mesa/swrast/s_points.c
+++ b/src/mesa/swrast/s_points.c
@@ -129,13 +129,13 @@ sprite_point(GLcontext *ctx, const SWvertex *vert)
s = 0.0;
dsdx = 1.0 / size;
if (ctx->Point.SpriteOrigin == GL_LOWER_LEFT) {
- t0 = 0.0;
dtdy = 1.0 / size;
+ t0 = 0.5 * dtdy;
}
else {
/* GL_UPPER_LEFT */
- t0 = 1.0;
dtdy = -1.0 / size;
+ t0 = 1.0 + 0.5 * dtdy;
}
ATTRIB_LOOP_BEGIN