diff options
| author | Eric Anholt <eric@anholt.net> | 2010-09-27 15:57:33 -0600 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2010-09-27 16:00:24 -0600 |
| commit | 9682c3021140961d26c4c6b1dcc1d148eb137cd2 (patch) | |
| tree | d5ae1b69f3a29a1b30ec5d4383c67dd445e14dd9 | |
| parent | 1830b8ae997f0312940fece082c18d98c44ac530 (diff) | |
glean/tfbo: Put lines in the middle of the pixel, not the edge.
GL lets the implementation be +/- a pixel on line location. It was
getting rounded down on the intel driver, so the lines weren't drawn
to 1D FBOs. This should have a better chance on drivers in general.
(cherry-picked from piglit commit 9fdd8d9d1fc56178c950ba8fbca8abfb2e9d8b96)
| -rw-r--r-- | src/glean/tfbo.cpp | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/glean/tfbo.cpp b/src/glean/tfbo.cpp index 591e78d..f24fe7f 100644 --- a/src/glean/tfbo.cpp +++ b/src/glean/tfbo.cpp @@ -674,8 +674,8 @@ FBOTest::testRender2SingleTexture(void) switch (textureModes[mode]) { case GL_TEXTURE_1D: glBegin(GL_LINES); - glVertex3f(TEXSIZE / 4, 0, 0.3); - glVertex3f(TEXSIZE * 5 / 8, 0, 0.3); + glVertex3f(TEXSIZE / 4, 0.5, 0.3); + glVertex3f(TEXSIZE * 5 / 8, 0.5, 0.3); glEnd(); break; case GL_TEXTURE_2D: @@ -704,8 +704,8 @@ FBOTest::testRender2SingleTexture(void) switch (textureModes[mode]) { case GL_TEXTURE_1D: glBegin(GL_LINES); - glVertex3f(TEXSIZE / 2, 0, 0.3); - glVertex3f(TEXSIZE * 7 / 8, 0, 0.3); + glVertex3f(TEXSIZE / 2, 0.5, 0.3); + glVertex3f(TEXSIZE * 7 / 8, 0.5, 0.3); glEnd(); break; case GL_TEXTURE_2D: @@ -735,8 +735,8 @@ FBOTest::testRender2SingleTexture(void) switch (textureModes[mode]) { case GL_TEXTURE_1D: glBegin(GL_LINES); - glVertex3f(0, 0, 0.2); - glVertex3f(TEXSIZE, 0, 0.2); + glVertex3f(0, 0.5, 0.2); + glVertex3f(TEXSIZE, 0.5, 0.2); glEnd(); break; case GL_TEXTURE_2D: |