Thanks for the posts. I am stubborn and went with option 3. The code below does what I want, and I can leverage cv2 to do it:
import pyglet import ctypes import itertools import numpy as np import cv2 image = np.zeros((50, 50, 3), np.uint8) pt1 = (1, 1) pt2 = (48, 24) pt3 = (1, 48) triangle_cnt = np.array([pt1, pt2, pt3]) cv2.drawContours(image, [triangle_cnt], 0, (100, 255, 100), -1) image = image.tolist() px = list(itertools.chain(*list(itertools.chain(*image)))) rawData = (ctypes.c_ubyte * len(px))(*px) player_image3 = pyglet.image.ImageData(50, 50, 'RGB', rawData).get_texture() On Wednesday, March 4, 2020 at 2:33:43 PM UTC-5, Charles M wrote: > > A sprite by definition is basically a wrapper around a texture and it's 4 > vertices. If you want a Sprite class around OpenGL primitives like > triangles, polygons, there is nothing out of the box that you can use other > than what Benjamin showed you. > > Your options are: > 1) Create the shapes you need as images and use them in the Sprite class. > > 2) Use Benjamins advice and make helper classes that function like sprites > (similar methods, attributes, etc) that wrap around GL primitives. One for > each shape you'll need. > > 3) You could also create the shapes as image data using bytes and pass > them into an ImageData instance that Pyglet can use. (If you wanted to do > something programatically without loading files from disk.) > > The only out of the box ready to go option is #1. The rest will involve > some work. > > On Wednesday, March 4, 2020 at 6:52:09 AM UTC-6, Jonathon Parker wrote: >> >> Benjamin, >> >> The math for rotation was the thing I was most trying to avoid. If I >> have a complex shape, I would need to know the center, rotate every point, >> and fill the colored portions in. That sounds hard. >> >> I want to use Sprites as the visual component of a simulation. The >> behaviors of objects in the simulation are my focus, so I thought the >> visual component should be simple. What I want is to define an image using >> some geometric shapes (preferably not a bitmap!) and pass it to a Sprite. >> Is there anyway to do that? >> >> >> Jonathon >> >> On Wednesday, March 4, 2020 at 7:19:17 AM UTC-5, Benjamin Moran wrote: >>> >>> Hi Jonathon, >>> >>> Rather than trying to turn GL primitives in to an image to use with a >>> Sprite, you could also make a Sprite-like class for the various shapes. >>> This can get tricky if you want to rotate them, as you'll have to add your >>> own math to do that work, but as an example I'll post a simple Rectangle >>> class below. You can make similar classes for a variety of shapes: >>> >>> >>> class Rectangle: >>> def __init__(self, x, y, width, height, color=(255, 255, 255, 255), >>> batch=None, group=None): >>> self._x = x >>> self._y = y >>> self._size = [width, height] >>> self._color = color >>> self._batch = batch >>> self._group = group >>> self._vertex_list = batch.add(6, GL_TRIANGLES, group, 'v2f', 'c4B') >>> self._update_vertex_list() >>> >>> def _update_vertex_list(self): >>> x = self._x >>> y = self._y >>> w, h = self._size >>> one = x, y >>> two = x + w, y >>> three = x + w, y + h >>> four = x, y + h >>> self._vertex_list.vertices[:] = one + two + three + three + one + >>> four >>> self._vertex_list.colors[:] = self._color * 6 >>> >>> @property >>> def width(self): >>> return self._size[0] >>> >>> @width.setter >>> def width(self, value): >>> self._size[0] = value >>> self._update_vertex_list() >>> >>> @property >>> def height(self): >>> return self._size[1] >>> >>> @height.setter >>> def height(self, value): >>> self._size[1] = value >>> self._update_vertex_list() >>> >>> >>> >>> On Wednesday, March 4, 2020 at 12:29:55 AM UTC+9, Jonathon Parker wrote: >>>> >>>> The Sprite class takes an image and all the examples I have seen use an >>>> image file. Instead of using an image file, is it possible to use >>>> anything >>>> from pyglet.graphics to define an image? How do I do this? My goal is to >>>> take advantage of all the functions of a Sprite with a custom image >>>> created >>>> from multiple geometric shapes. >>>> >>>> FYI, I did successfully define an image (a green square) using >>>> SolidColorPattern, convert it to a texture, and pass it to a Sprite. >>>> After >>>> that I got stuck. >>>> >>>> >>>> -- 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 pyglet-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/pyglet-users/f9412d02-e358-489d-b389-154904fbde55%40googlegroups.com.
