def draw_texture(x=0, y=0, w=30, h=10, texname=texname):
# function to draw a texture
bgl.glDisable(bgl.GL_DEPTH_TEST)
act_tex = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_TEXTURE_2D, act_tex)
bgl.glEnable(bgl.GL_TEXTURE_2D)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glTexEnvf(bgl.GL_TEXTURE_ENV, bgl.GL_TEXTURE_ENV_MODE, bgl.GL_REPLACE)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, texname)
texco = [(0, 1), (1, 1), (1, 0), (0, 0)]
verco = [(x, y), (x + w, y), (x + w, y - h), (x, y - h)]
bgl.glPolygonMode(bgl.GL_FRONT_AND_BACK, bgl.GL_FILL)
bgl.glBegin(bgl.GL_QUADS)
for i in range(4):
bgl.glTexCoord3f(texco[i][0], texco[i][1], 0.0)
bgl.glVertex2f(verco[i][0], verco[i][1])
bgl.glEnd()
# restoring settings
bgl.glBindTexture(bgl.GL_TEXTURE_2D, act_tex[0])
bgl.glDisable(bgl.GL_TEXTURE_2D)
def draw_texture(x=0, y=0, w=30, h=10, texname=texname):
# function to draw a texture
bgl.glDisable(bgl.GL_DEPTH_TEST)
act_tex = bgl.Buffer(bgl.GL_INT, 1)
bgl.glGetIntegerv(bgl.GL_TEXTURE_2D, act_tex)
bgl.glEnable(bgl.GL_TEXTURE_2D)
bgl.glActiveTexture(bgl.GL_TEXTURE0)
bgl.glTexEnvf(bgl.GL_TEXTURE_ENV, bgl.GL_TEXTURE_ENV_MODE,
bgl.GL_REPLACE)
bgl.glBindTexture(bgl.GL_TEXTURE_2D, texname)
texco = [(0, 1), (1, 1), (1, 0), (0, 0)]
verco = [(x, y), (x + w, y), (x + w, y - h), (x, y - h)]
bgl.glPolygonMode(bgl.GL_FRONT_AND_BACK, bgl.GL_FILL)
bgl.glBegin(bgl.GL_QUADS)
for i in range(4):
bgl.glTexCoord3f(texco[i][0], texco[i][1], 0.0)
bgl.glVertex2f(verco[i][0], verco[i][1])
bgl.glEnd()
# restoring settings
bgl.glBindTexture(bgl.GL_TEXTURE_2D, act_tex[0])
bgl.glDisable(bgl.GL_TEXTURE_2D)
def view_draw(self, context):
verco = [(1.0, 1.0), (-1.0, 1.0), (-1.0, -1.0), (1.0, -1.0)]
texco = [(1.0, 1.0), (0.0, 1.0), (0.0, 0.0), (1.0, 0.0)]
viewport = bgl.Buffer(bgl.GL_INT, [4])
bgl.glDisable(bgl.GL_DEPTH_TEST)
bgl.glGetIntegerv(bgl.GL_VIEWPORT, viewport)
bgl.glViewport(viewport[0], viewport[1], viewport[2], viewport[3])
bgl.glMatrixMode(bgl.GL_PROJECTION)
bgl.glPushMatrix()
bgl.glLoadIdentity()
bgl.glMatrixMode(bgl.GL_MODELVIEW)
bgl.glPushMatrix()
bgl.glLoadIdentity()
bgl.glUseProgram(self.program)
wind = glGetUniformLocation(self.program, "u_wind")
res = glGetUniformLocation(self.program, "u_resolution")
size = glGetUniformLocation(self.program, "u_size")
glUniform2fv(wind, 1, [150.0, 150.0])
glUniform1f(size, 250.0)
glUniform1f(res, 512.0)
bgl.glBegin(bgl.GL_QUADS)
for i in range(4):
bgl.glTexCoord3f(texco[i][0], texco[i][1], 1.0)
bgl.glVertex2f(verco[i][0], verco[i][1])
bgl.glEnd()
bgl.glUseProgram(0)
bgl.glMatrixMode(bgl.GL_PROJECTION)
bgl.glPopMatrix()
bgl.glMatrixMode(bgl.GL_MODELVIEW)
bgl.glPopMatrix()