我正在使用QSurfaceFormat明確定義OpenGL Core 配置文件并設置次要/主要版本。問題是，自定義表面格式的分配給我以下錯誤：Traceback (most recent call last): File "/home/artem/PycharmProjects/PolyEdit3D/PolyEdit3D/Widgets/PlyViewport.py", line 22, in initializeGL gl.glEnable(gl.GL_COLOR_BUFFER_BIT) File "/home/artem/.local/lib/python3.7/site-packages/OpenGL/platform/baseplatform.py", line 415, in __call__ return self( *args, **named ) File "src/errorchecker.pyx", line 58, in OpenGL_accelerate.errorchecker._ErrorChecker.glCheckErrorOpenGL.error.GLError: GLError( err = 1280, description = b'invalid enumerant', baseOperation = glEnable, cArguments = (GL_COLOR_BUFFER_BIT,))Traceback (most recent call last): File "/home/artem/PycharmProjects/PolyEdit3D/PolyEdit3D/Widgets/PlyViewport.py", line 69, in paintGL gl.glDrawElements(gl.GL_TRIANGLES, 6, gl.GL_UNSIGNED_INT, ctypes.c_void_p(0)) File "src/latebind.pyx", line 39, in OpenGL_accelerate.latebind.LateBind.__call__ File "src/wrapper.pyx", line 318, in OpenGL_accelerate.wrapper.Wrapper.__call__ File "src/wrapper.pyx", line 311, in OpenGL_accelerate.wrapper.Wrapper.__call__ File "/home/artem/.local/lib/python3.7/site-packages/OpenGL/platform/baseplatform.py", line 415, in __call__ return self( *args, **named ) File "src/errorchecker.pyx", line 58, in OpenGL_accelerate.errorchecker._ErrorChecker.glCheckErrorOpenGL.error.GLError: GLError( err = 1282, description = b'invalid operation', baseOperation = glDrawElements, pyArgs = ( GL_TRIANGLES, 6, GL_UNSIGNED_INT, c_void_p(None), ), cArgs = ( GL_TRIANGLES, 6, GL_UNSIGNED_INT, c_void_p(None), ), cArguments = ( GL_TRIANGLES, 6, GL_UNSIGNED_INT, c_void_p(None), ))正如您所看到的，還有gl.glEnable(gl.GL_COLOR_BUFFER_BIT)其他一些簡單的錯誤。沒有指定QSurfaceFormat一切都像一個魅力。
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TA貢獻1712條經驗 獲得超3個贊
GL_COLOR_BUFFER_BIT不是 的有效枚舉常量glEnable，但它是 的適當參數glClear。在通過以下方式設置清晰顏色后
調用：glClearglClearColor
class PlyViewportWidget(QtWidgets.QOpenGLWidget):
? ? # [...]
? ? def initializeGL(self):
? ? ? ??
? ? ? ? #gl.glEnable(gl.GL_COLOR_BUFFER_BIT) <---- DELETE
? ? ? ??
? ? ? ? gl.glClearColor(0.4, 0.4, 0.4, 1)
? ? ? ? gl.glClear(gl.GL_COLOR_BUFFER_BIT) # <---- ADD
您錯過了創建命名頂點數組對象的機會：
class PlyViewportWidget(QtWidgets.QOpenGLWidget):
? ? # [...]
? ? def initializeGL(self):
? ? ? ? # [...]
? ? ? ? self.vao = gl.glGenVertexArrays(1) # <---?
? ? ? ? gl.glBindVertexArray(self.vao)? ? ?# <---?
? ? ? ? self.vbo = gl.glGenBuffers(1)
? ? ? ? self.ebo = gl.glGenBuffers(1)
? ? ? ? gl.glBindBuffer(gl.GL_ARRAY_BUFFER, self.vbo)
? ? ? ? gl.glBufferData(gl.GL_ARRAY_BUFFER, vertices.nbytes, vertices, gl.GL_STATIC_DRAW)
? ? ? ? gl.glBindBuffer(gl.GL_ELEMENT_ARRAY_BUFFER, self.ebo)
? ? ? ? gl.glBufferData(gl.GL_ELEMENT_ARRAY_BUFFER, indices.nbytes, indices, gl.GL_STATIC_DRAW)
? ? ? ? gl.glEnableVertexAttribArray(0)
? ? ? ? gl.glVertexAttribPointer(0, 3, gl.GL_FLOAT, gl.GL_FALSE, 3 * ctypes.sizeof(ctypes.c_float), ctypes.c_void_p(0))
? ? ? ? gl.glBindBuffer(gl.GL_ARRAY_BUFFER, 0)
? ? ? ? gl.glBindVertexArray(0)
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