initial commit

tools/projection.py

@@ -0,0 +1,36 @@
+import math
+import sys
+
+def cos(deg):
+	return math.cos(math.radians(deg))
+
+def sin(deg):
+	return math.sin(math.radians(deg))
+
+def fixed12(value):
+	return int(value*(2**12))
+
+fov = 50.0
+ratio = 256.0/192.0
+near = 0.1
+far = 40.0
+
+f = cos(fov/2.0)/sin(fov/2.0)
+
+m00 = f / ratio
+m11 = f
+m22 = (near+far)/(near-far)
+m23 = -1.0
+m32 = (2.0*near*far)/(near-far)
+
+print "fov =	" + str(fov)
+print "ratio =	" + str(ratio)
+print "near =	" + str(near)
+print "far =	" + str(far)
+print ""
+print str(fixed12(m00)) + "	0,	0,	0"
+print "0,	" + str(fixed12(m11)) + ",	0,	0"
+print "0,	0,	" + str(fixed12(m22)) + ",	" + str(fixed12(m23))
+print "0,	0,	" + str(fixed12(m32)) + ",	0"
+
+sys.stdin.readline()