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| author | petersont@chromium.org <petersont@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-07-17 21:07:42 +0000 |
|---|---|---|
| committer | petersont@chromium.org <petersont@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2009-07-17 21:07:42 +0000 |
| commit | 02127f8772c83c5e53f66a9ad8267d4b343f8007 (patch) | |
| tree | 7e0b7f110cbda919f66b39f7cdfe5be02f1143f3 /o3d/core | |
| parent | d569a16535e85b517ff49138d0dd77d6fc6420c7 (diff) | |
| download | chromium_src-02127f8772c83c5e53f66a9ad8267d4b343f8007.zip chromium_src-02127f8772c83c5e53f66a9ad8267d4b343f8007.tar.gz chromium_src-02127f8772c83c5e53f66a9ad8267d4b343f8007.tar.bz2 | |
Added a new sample which implements basic shadow mapping.
Review URL: http://codereview.chromium.org/155401
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@21000 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'o3d/core')
| -rw-r--r-- | o3d/core/cross/gl/renderer_gl.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/o3d/core/cross/gl/renderer_gl.cc b/o3d/core/cross/gl/renderer_gl.cc index 8638607..dbd34fd 100644 --- a/o3d/core/cross/gl/renderer_gl.cc +++ b/o3d/core/cross/gl/renderer_gl.cc @@ -1567,6 +1567,11 @@ bool RendererGL::SaveScreen(const String& file_name) { MakeCurrentLazy(); Bitmap::Ref bitmap = Bitmap::Ref(new Bitmap(service_locator())); bitmap->Allocate(Texture::ARGB8, width(), height(), 1, false); + + // Note: glReadPixels captures the alpha component of the frame buffer as well + // as the color components, the browser usually ignores the alpha channel when + // drawing to the screen, so unless the alpha is 1, the png image generated + // might exhibit suprise translucency. ::glReadPixels(0, 0, width(), height(), GL_BGRA, GL_UNSIGNED_BYTE, bitmap->image_data()); bool result = bitmap->SaveToPNGFile((file_name + ".png").c_str()); |