Polygons are one per draw call. You may be able to use various extensions to cause primitive restart, but it's best not to rely on those being generally available.
Better to decompose your polygons into triangles, which don't have this problem. On Mon, Jan 18, 2016 at 5:59 PM Benjamin Moran <[email protected]> wrote: > It's my understanding that the first, and last vertexes need to be > duplicated. Something about terminating the points. I could be off base > here, since the last time I wrote OpenGL was about 2 years ago with another > framework and likely in modern OpenGL, but give that a look :) > > > On Tuesday, January 19, 2016 at 10:26:34 AM UTC+9, Pygler wrote: >> >> I am trying to batch draw a bunch of circles using their vertices (using >> below function to generate many circles) instead of using glVertex2f in a >> loop to draw a circle. >> >> class Snowflake(object): >> def __init__(self, x, y, radius, d, batch): >> self.x = x >> self.y = y >> self.r = radius >> self.d = d >> circle = self.create_vertices(x, y, self.r) >> self.vertex_list = batch.add(len(circle[1])//2, >> pyglet.gl.GL_POLYGON, None, >> circle,('c4f',(1, 1, 1, 0.8)*(len(circle[1])//2))) >> >> def create_vertices(self, x, y, radius, sides=24): >> vertices = [] >> for i in range(sides): >> angle = math.radians(float(i)/sides * 360.0) >> x1 = radius*math.cos(angle) + x >> y1 = radius*math.sin(angle) + y >> vertices += [x1,y1] >> >> >> return ('v2f', vertices) >> >> >> However, upon doing this and running batch.draw(), it links each polygon >> together from where the last vertice is in each vertex list to the start of >> the next. Is it not possible to batch polygons and separate them like this >> or is there something I am missing? Sorry if this is a stupid question. >> Thanks for any help. >> > -- > You received this message because you are subscribed to the Google Groups > "pyglet-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/pyglet-users. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "pyglet-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/pyglet-users. For more options, visit https://groups.google.com/d/optout.
