On 08/10/2010 11:26 AM, Alex wrote:
maybe you're missing this on your code to enable alpha blending:
|pyglet.gl.|glBlendFunc( pyglet.gl.GL_SRC_ALPHA,
pyglet.gl.GL_ONE_MINUS_SRC_ALPHA)
hope it helps!
Alex Verstraeten
Not quite right. You enable blending with
glEnable(GL_BLEND)
Your call
glBlendFunc(..., ...)
chooses what kind of blending to do, and your choice of parameter|s
|glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
is the most common choice.
However all the vertex alpha's and blend function choices are simply
ignored if you don't call
glEnable(GL_BLEND)
before rendering.
Gary Herron
On 8/10/2010 11:08 AM, Jimjamjahaa wrote:
i can't seem to get pyglet to draw me a semi transparent panel :(
class InterfacePanel( DrawnElement ):
def __init__( self, x=0, y=0, x2=32, y2=32, z=30000, colour=( 200,
200, 200 )):
super( InterfacePanel, self ).__init__( z=z )
self.colour = colour
self.x, self.y, self.x2, self.y2 = x, y, x2, y2
self.updateVertexList()
def draw( self ):
self.vertexList.draw( pyglet.gl.GL_QUADS )
def updateVertexList( self ):
r = self.colour[0]
g = self.colour[1]
b = self.colour[2]
a = 64
self.vertexList = pyglet.graphics.vertex_list( 4,
('v2i', ( self.x, self.y,
self.x, self.y2,
self.x2, self.y2,
self.x2, self.y )),
('c4B', ( r, g, b, a ) * 4 )
)
can anyone help me out here? i'm a bit stumped
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