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authorJoshua Rahm <joshua.rahm@colorado.edu>2014-04-22 00:27:21 -0600
committerJoshua Rahm <joshua.rahm@colorado.edu>2014-04-22 00:27:21 -0600
commitbc247b19550b58ce8e9f6ab82ac7607c8713de44 (patch)
tree4176eeea6fa453d2958303d2b33b49e6ca42d4d9 /Graphics/Glyph/GLMath.hs
parent14b6f5cee8236f7c42065813c5dd6a659d4d5d65 (diff)
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added stuff for sun
Diffstat (limited to 'Graphics/Glyph/GLMath.hs')
-rw-r--r--Graphics/Glyph/GLMath.hs6
1 files changed, 6 insertions, 0 deletions
diff --git a/Graphics/Glyph/GLMath.hs b/Graphics/Glyph/GLMath.hs
index 7b454e2..cd0fd53 100644
--- a/Graphics/Glyph/GLMath.hs
+++ b/Graphics/Glyph/GLMath.hs
@@ -92,6 +92,12 @@ module Graphics.Glyph.GLMath where
sz, uz, -fz, 0,
-(s<.>e) , -(u'<.>e), (f<.>e), 1 )
+ orthoMatrix :: GLfloat -> GLfloat -> GLfloat -> GLfloat -> GLfloat -> GLfloat -> Mat4 GLfloat
+ orthoMatrix top bot right left near far =
+ Matrix4 (2 / (right-left), 0, 0, - (right + left) / (right - left),
+ 0, 2 / (top-bot), 0, - (top+bot) / (top-bot),
+ 0, 0, -2 / (far-near), - (far+near) / (far - near),
+ 0, 0, 0, 1)
perspectiveMatrix :: GLfloat -> GLfloat -> GLfloat -> GLfloat -> Mat4 GLfloat
{- as close to copied from glm as possible -}
perspectiveMatrix fov asp zn zf =