Python OpenGL.GL.GL_NEAREST Examples

The following are 8 code examples of OpenGL.GL.GL_NEAREST(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module OpenGL.GL , or try the search function .
Example #1
Source File: framebuffer.py    From renpy-shader with MIT License 5 votes vote down vote up 
def createEmptyTexture(self, width, height):
        textureId = (gl.GLuint * 1)()
        gl.glGenTextures(1, textureId)
        gl.glBindTexture(gl.GL_TEXTURE_2D, textureId[0])
        gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_WRAP_S, gl.GL_CLAMP_TO_EDGE)
        gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_WRAP_T, gl.GL_CLAMP_TO_EDGE)
        gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MIN_FILTER, gl.GL_NEAREST)
        gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER, gl.GL_NEAREST)
        #None means reserve texture memory, but texels are undefined
        gl.glTexImage2D(gl.GL_TEXTURE_2D, 0, gl.GL_RGBA8, width, height, 0, gl.GL_BGRA, gl.GL_UNSIGNED_BYTE, None)
        gl.glBindTexture(gl.GL_TEXTURE_2D, 0)
        return textureId[0]
Example #2
Source File: renderer.py    From GDMC with ISC License 5 votes vote down vote up 
def makeFloorTex():
        color0 = (0xff, 0xff, 0xff, 0x22)
        color1 = (0xff, 0xff, 0xff, 0x44)

        img = numpy.array([color0, color1, color1, color0], dtype='uint8')

        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST)

        GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA, 2, 2, 0, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, img)
Example #3
Source File: glow.py    From semantic-kitti-api with MIT License 5 votes vote down vote up 
def __init__(self, width, height, internalFormat=gl.GL_RGBA, format=gl.GL_RGBA):
    self.id_ = gl.glGenTextures(1)
    self.internalFormat_ = internalFormat  # gl.GL_RGB_FLOAT, gl.GL_RGB_UNSIGNED, ...
    self.format = format  # GL_RG. GL_RG_INTEGER, ...

    self.width_ = width
    self.height_ = height

    gl.glBindTexture(gl.GL_TEXTURE_RECTANGLE, self.id_)
    gl.glTexParameteri(gl.GL_TEXTURE_RECTANGLE, gl.GL_TEXTURE_MIN_FILTER, gl.GL_NEAREST)
    gl.glTexParameteri(gl.GL_TEXTURE_RECTANGLE, gl.GL_TEXTURE_MAG_FILTER, gl.GL_NEAREST)
    gl.glTexParameteri(gl.GL_TEXTURE_RECTANGLE, gl.GL_TEXTURE_WRAP_S, gl.GL_CLAMP_TO_BORDER)
    gl.glTexParameteri(gl.GL_TEXTURE_RECTANGLE, gl.GL_TEXTURE_WRAP_T, gl.GL_CLAMP_TO_BORDER)
    gl.glBindTexture(gl.GL_TEXTURE_RECTANGLE, 0)
Example #4
Source File: fullscreen_quad.py    From dm_control with Apache License 2.0 5 votes vote down vote up 
def _init_texture(self):
    """Initializes the texture storage."""
    self._texture = GL.glGenTextures(1)
    GL.glBindTexture(GL.GL_TEXTURE_2D, self._texture)
    GL.glTexParameteri(
        GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST)
    GL.glTexParameteri(
        GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST)
Example #5
Source File: renderer.py    From MCEdit-Unified with ISC License 5 votes vote down vote up 
def makeFloorTex():
        color0 = (0xff, 0xff, 0xff, 0x22)
        color1 = (0xff, 0xff, 0xff, 0x44)

        img = numpy.array([color0, color1, color1, color0], dtype='uint8')

        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST)

        GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA, 2, 2, 0, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, img)
Example #6
Source File: glutils.py    From GDMC with ISC License 4 votes vote down vote up 
def __init__(self, width, height, drawFunc):
        tex = GL.glGenTextures(1)
        GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST)
        GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA8, width, height, 0, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, None)
        self.enabled = False
        self._texID = tex
        if bool(FBO.glGenFramebuffers) and "Intel" not in GL.glGetString(GL.GL_VENDOR):
            buf = FBO.glGenFramebuffers(1)
            depthbuffer = FBO.glGenRenderbuffers(1)

            FBO.glBindFramebuffer(FBO.GL_FRAMEBUFFER, buf)

            FBO.glBindRenderbuffer(FBO.GL_RENDERBUFFER, depthbuffer)
            FBO.glRenderbufferStorage(FBO.GL_RENDERBUFFER, GL.GL_DEPTH_COMPONENT, width, height)

            FBO.glFramebufferRenderbuffer(FBO.GL_FRAMEBUFFER, FBO.GL_DEPTH_ATTACHMENT, FBO.GL_RENDERBUFFER, depthbuffer)
            FBO.glFramebufferTexture2D(FBO.GL_FRAMEBUFFER, FBO.GL_COLOR_ATTACHMENT0, GL.GL_TEXTURE_2D, tex, 0)

            status = FBO.glCheckFramebufferStatus(FBO.GL_FRAMEBUFFER)
            if status != FBO.GL_FRAMEBUFFER_COMPLETE:
                print "glCheckFramebufferStatus", status
                self.enabled = False
                return

            FBO.glBindFramebuffer(FBO.GL_FRAMEBUFFER, buf)

            with gl.glPushAttrib(GL.GL_VIEWPORT_BIT):
                GL.glViewport(0, 0, width, height)
                drawFunc()

            FBO.glBindFramebuffer(FBO.GL_FRAMEBUFFER, 0)
            FBO.glDeleteFramebuffers(1, [buf])
            FBO.glDeleteRenderbuffers(1, [depthbuffer])
            self.enabled = True
        else:
            GL.glReadBuffer(GL.GL_BACK)

            GL.glPushAttrib(
                GL.GL_VIEWPORT_BIT | GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_TEST | GL.GL_STENCIL_BUFFER_BIT)
            GL.glDisable(GL.GL_STENCIL_TEST)

            GL.glViewport(0, 0, width, height)
            GL.glScissor(0, 0, width, height)
            with gl.glEnable(GL.GL_SCISSOR_TEST):
                drawFunc()

            GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
            GL.glReadBuffer(GL.GL_BACK)
            GL.glCopyTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0, 0, 0, width, height)

            GL.glPopAttrib()
Example #7
Source File: gui_utils.py    From spimagine with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
def fillTexture2d(data,tex = None, interp=True):
    """ data.shape == (Ny,Nx)
          file texture with GL_RED
        data.shape == (Ny,Nx,3)
          file texture with GL_RGB

        if tex == None, returns a new created texture
    """

    if tex is None:
        tex = GL.glGenTextures(1)

    GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
    GL.glPixelStorei(GL.GL_UNPACK_ALIGNMENT,1)
    GL.glTexParameterf (GL.GL_TEXTURE_2D,
                     GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR)
    GL.glTexParameterf (GL.GL_TEXTURE_2D,
                     GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR if interp else GL.GL_NEAREST)

    GL.glTexParameterf (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP_TO_EDGE)
    GL.glTexParameterf (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP_TO_EDGE)
    # GL.glTexParameterf (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP)
    # GL.glTexParameterf (GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP)

    if data.ndim == 2:
        Ny,Nx = data.shape
        GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB, Nx, Ny,
                     0, GL.GL_RED, GL.GL_FLOAT, data.astype(np.float32))

    elif data.ndim == 3 and data.shape[2]==3:
        Ny,Nx = data.shape[:2]
        GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB, Nx, Ny,
                         0, GL.GL_RGB, GL.GL_FLOAT, data.astype(np.float32))

    elif data.ndim == 3 and data.shape[2]==4:
        Ny,Nx = data.shape[:2]
        GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA, Nx, Ny,
                         0, GL.GL_RGBA, GL.GL_FLOAT, data.astype(np.float32))

    else:
        raise Exception("data format not supported! \ndata.shape should be either (Ny,Nx) or (Ny,Nx,3)")
    return tex
Example #8
Source File: glutils.py    From MCEdit-Unified with ISC License 4 votes vote down vote up 
def __init__(self, width, height, drawFunc):
        tex = GL.glGenTextures(1)
        GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST)
        GL.glTexParameter(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST)
        GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA8, width, height, 0, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, None)
        self.enabled = False
        self._texID = tex
        if bool(FBO.glGenFramebuffers) and "Intel" not in GL.glGetString(GL.GL_VENDOR):
            buf = FBO.glGenFramebuffers(1)
            depthbuffer = FBO.glGenRenderbuffers(1)

            FBO.glBindFramebuffer(FBO.GL_FRAMEBUFFER, buf)

            FBO.glBindRenderbuffer(FBO.GL_RENDERBUFFER, depthbuffer)
            FBO.glRenderbufferStorage(FBO.GL_RENDERBUFFER, GL.GL_DEPTH_COMPONENT, width, height)

            FBO.glFramebufferRenderbuffer(FBO.GL_FRAMEBUFFER, FBO.GL_DEPTH_ATTACHMENT, FBO.GL_RENDERBUFFER, depthbuffer)
            FBO.glFramebufferTexture2D(FBO.GL_FRAMEBUFFER, FBO.GL_COLOR_ATTACHMENT0, GL.GL_TEXTURE_2D, tex, 0)

            status = FBO.glCheckFramebufferStatus(FBO.GL_FRAMEBUFFER)
            if status != FBO.GL_FRAMEBUFFER_COMPLETE:
                print "glCheckFramebufferStatus", status
                self.enabled = False
                return

            FBO.glBindFramebuffer(FBO.GL_FRAMEBUFFER, buf)

            with gl.glPushAttrib(GL.GL_VIEWPORT_BIT):
                GL.glViewport(0, 0, width, height)
                drawFunc()

            FBO.glBindFramebuffer(FBO.GL_FRAMEBUFFER, 0)
            FBO.glDeleteFramebuffers(1, [buf])
            FBO.glDeleteRenderbuffers(1, [depthbuffer])
            self.enabled = True
        else:
            GL.glReadBuffer(GL.GL_BACK)

            GL.glPushAttrib(
                GL.GL_VIEWPORT_BIT | GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_TEST | GL.GL_STENCIL_BUFFER_BIT)
            GL.glDisable(GL.GL_STENCIL_TEST)

            GL.glViewport(0, 0, width, height)
            GL.glScissor(0, 0, width, height)
            with gl.glEnable(GL.GL_SCISSOR_TEST):
                drawFunc()

            GL.glBindTexture(GL.GL_TEXTURE_2D, tex)
            GL.glReadBuffer(GL.GL_BACK)
            GL.glCopyTexSubImage2D(GL.GL_TEXTURE_2D, 0, 0, 0, 0, 0, width, height)

            GL.glPopAttrib()