---
progs/fp/position-frc-integer.txt | 7 +++++++
progs/fp/position-frc.txt | 6 ++++++
progs/fp/position-upper-left.txt | 7 +++++++
progs/fp/position.txt | 2 ++
4 files changed, 22 insertions(+), 0 deletions(-)
create mode 100644 progs/fp/position-frc-integer.txt
create mode 100644 progs/fp/position-frc.txt
create mode 100644 progs/fp/position-upper-left.txt
diff --git a/progs/fp/position-frc-integer.txt
b/progs/fp/position-frc-integer.txt
new file mode 100644
index 0000000..24179ef
--- /dev/null
+++ b/progs/fp/position-frc-integer.txt
@@ -0,0 +1,7 @@
+# expected: black triangle
+# brown means the wrong pixel center convention is being used
+!!ARBfp1.0
+OPTION ARB_fragment_coord_pixel_center_integer;
+MOV result.color, {0}.x;
+FRC result.color.xy, fragment.position;
+END
diff --git a/progs/fp/position-frc.txt b/progs/fp/position-frc.txt
new file mode 100644
index 0000000..6a299f9
--- /dev/null
+++ b/progs/fp/position-frc.txt
@@ -0,0 +1,6 @@
+# expected: brown triangle
+# black means the wrong pixel center convention is being used
+!!ARBfp1.0
+MOV result.color, {0}.x;
+FRC result.color.xy, fragment.position;
+END
diff --git a/progs/fp/position-upper-left.txt b/progs/fp/position-upper-left.txt
new file mode 100644
index 0000000..9049706
--- /dev/null
+++ b/progs/fp/position-upper-left.txt
@@ -0,0 +1,7 @@
+# expected: the yellow vertex is the bottom one
+# if it is the top one, the wrong origin convention is being used
+!!ARBfp1.0
+OPTION ARB_fragment_coord_origin_upper_left;
+MOV result.color, {0}.x;
+MUL result.color.xy, fragment.position, {.005}.x;
+END
diff --git a/progs/fp/position.txt b/progs/fp/position.txt
index 1875897..5e5fac1 100644
--- a/progs/fp/position.txt
+++ b/progs/fp/position.txt
@@ -1,3 +1,5 @@
+# expected: the yellow vertex is the top one
+# if it is the bottom one, the wrong origin convention is being used
!!ARBfp1.0
MOV result.color, {0}.x;
MUL result.color.xy, fragment.position, {.005}.x;
--
1.6.3.3
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