Changeset 442 for branches/thune/thread_safe/doc/GLManual

Timestamp:

08/05/07 00:26:17 (16 months ago)

Author:

krobillard

Message:

Added ++/-- to replace word inc/dec.
Renamed UR_FLAG_EOL as UR_FLAG_SOL.
GL - Added 'sphere draw opcode and 'curve-value call.

Files:

• branches/thune/thread_safe/doc/GLManual (modified) (3 diffs)

branches/thune/thread_safe/doc/GLManual

@@ -169 +169 @@
 ================  ======================  ======================
 lerp_             (val1 val2 t -- valt)
+curve-value_      (curve t -- valt)
 ================  ======================  ======================
 
 
 lerp
+++++
+
+Does a linear interpolation between two values of the same type
+(decimal!, vec3!, or coord!).
+
+This is the calculation used::
+
+        result = v1 + ((v2 - v1) * t)
+
+Stack usage::
+
+    (v1 decimal!/vec3!/coord!
+     v2 decimal!/vec3!/coord!
+     t  decimal!
+     -- decimal!/vec3!/coord!)
+
+
+curve-value
 +++++++++++
 
-Does a linear interpolation between two decimal or two vec3 values.
-
-::
-
-    (decimal!/vec3!  decimal!/vec3! decimal! -- decimal!/vec3!)
+Returns value on curve at time t.  Currently only linear segments are
+implemented.
+
+Stack usage::
+
+    (block!  decimal!/int! -- value)
+
+Example::
+
+    [0.0  2.0
+     0.5  7.0
+     1.0  7.0
+     8.0  2.0] 3 curve-value
+    = 5.57143
 
 
@@ -196 +224 @@
 clear                                     glClear()
 call              draw-list
+enable/F                                  glEnable()
+disable/F                                 glDisable()
 solid                                     Draw without textures
 model                                     Draw with texture (will be changed)
@@ -212 +242 @@
 font              font!                   Draw with font
 text              [coord!] text           Draw text in current font
+sphere            radius slices,stacks    Draw textured GLUT sphere
 shader            shader!/none!/0         Load shader
 framebuffer       framebuffer!/none!/0    Bind framebuffer