Changeset bfad34229eccba8d964a27a0fb3a2084c612a7b9 for palette/trunk/palette/plugins/moire/__init__.py

Timestamp:

09/24/08 06:28:06 (4 years ago)

Author:

flupke <flupke@…>

Children:

1b0cdd33d70957213349cfa0cae373c7350c73a5

Parents:

206d95c9b3331ad20b32a8ff1c5e9666a2029a28

git-committer:

flupke <flupke@…> (09/24/08 06:28:06)

Message:

palette:

• corrigé l'init de GLUT pour que la fenêtre soit créée avec la taille spécifiée dans le plugin
• les classes pour utilisers les FBO fonctionnent
• fait un test d'encodage d'animation en moiré

git-svn-id:  http://kawa.selfip.org/svn/projects@503 532e76a9-45ae-c241-9c6d-8309ac6440cd

File:

• palette/trunk/palette/plugins/moire/__init__.py (moved) (moved from palette/trunk/palette/plugins/moire.py) (7 diffs)

palette/trunk/palette/plugins/moire/__init__.py

@@ -2 +2 @@
 from OpenGL.GL import *
 from OpenGL.GLU import *
+from encode import ScreenEncoder
 
 
@@ -20 +21 @@
     "elements_resolution": "integer(from=3, to=1024, default=256)",
     "line_width": "float(from=0.05, to=150.0, increment=0.1, default=3.4)",
-    "mode": "enum(values=lines|circles|spiral, default=lines)",
+    "mode": "enum(values=lines|circles|spiral|dynamic, default=dynamic)",
+    "encoder_steps": "integer(from=2, to=50, default=5)",
 }
 
@@ -29 +31 @@
     "spiral": None,
 }
+encoder = None
 
 
 def setup():
-    global display_lists_base, display_lists
+    global display_lists_base, display_lists, encoder
     display_lists_base = glGenLists(len(display_lists))
     for i, dl_id in enumerate(display_lists):
@@ -39 +42 @@
 
 def tear_down():
-    global display_lists_base, display_lists
     glDeleteLists(display_lists_base, len(display_lists))
 
 
 def parameters_changed(parameters):
-    global display_lists_base, display_lists
+    global encoder
     glNewList(display_lists["circle"], GL_COMPILE)
     glBegin(GL_LINE_LOOP)
@@ -62 +64 @@
     glEnd()    
     glEndList()
+    encoder = ScreenEncoder(parameters["encoder_steps"], (512, 512))
 
 
 def render(p, canvas, parameters, frame, time):
-    global display_lists_base, display_lists
     # Setup a 2D transformation
     glMatrixMode(GL_PROJECTION)
@@ -73 +75 @@
     # Enable antialiasing
     glEnable(GL_LINE_SMOOTH)
-    glEnable(GL_BLEND);
+    glEnable(GL_BLEND)
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
     glHint(GL_LINE_SMOOTH_HINT, GL_NICEST)
+    glShadeModel(GL_SMOOTH)
+    glDisable(GL_TEXTURE_2D)
     # Clear screen
     glClearColor(1, 1, 1, 0)
@@ -99 +103 @@
                 parameters["elements_resolution"])
     elif parameters["mode"] == "spiral":
+        #scale = canvas.size[0] *0.9
         glLoadIdentity()
+        glTranslate(canvas.center[0], canvas.center[0])
+        #glScale(scale, scale, scale)
         spiral()
         glLoadIdentity()
         amp_x = sin(time * 0.7657) * parameters["amplitude"]
         amp_y = cos(time * 0.25687) * parameters["amplitude"]
-        glTranslate(cos(time) * amp_x, sin(time) * amp_y, 0)
+        glTranslate(canvas.center[0] + cos(time) * amp_x, 
+                canvas.center[1] + sin(time) * amp_y, 0)
+        #glScale(scale, scale, scale)
         spiral()
-        
+    elif parameters["mode"] == "dynamic":
+        encoder.begin_frame()
+        glLoadIdentity()
+        frame = frame % encoder.num_frames
+        a = float(frame) / encoder.num_frames * 2.0 * pi
+        x = parameters["amplitude"] * cos(a) + canvas.center[0]
+        y = parameters["amplitude"] * sin(a) + canvas.center[1]
+        glTranslate(x, y, 0)
+        glScale(100, 100, 1)
+        glBegin(GL_TRIANGLE_FAN)
+        glVertex2f(0, 0)
+        for i in range(10):
+            alpha = float(i) / 5.0 * pi
+            x = cos(alpha)
+            y = sin(alpha)
+            glVertex2f(x, y)
+        glVertex2f(1, 0)
+        glEnd()
+        encoder.end_frame()
+        if encoder.complete:
+            encoder.render_base()
+            glLoadIdentity()            
+            glTranslate((time * 30.0) % encoder.num_frames, 0, 0)
+            encoder.render_mask()