/[gzz]/gzz/gzz/gfx/gl/pagespanpaper.py
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Diff of /gzz/gzz/gfx/gl/pagespanpaper.py

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revision 1.7 by tjl, Fri Feb 21 20:02:38 2003 UTC revision 1.8 by jvk, Sun Mar 2 13:49:32 2003 UTC
# Line 21  Line 21 
21  #  #
22    
23    
24  from gzz.gfx.gl import PageSpanPaper  from gzz.gfx.gl import PageSpanPaper, GL
25    from gfx.libutil.nvcode import parseCombiner
26    
27  # The filters for pagespanpaper, really clunky  # The filters for pagespanpaper, really clunky
28  # to write in java.  # to write in java.
# Line 57  PageSpanPaper.setupDualPass = """ Line 58  PageSpanPaper.setupDualPass = """
58      ActiveTexture TEXTURE1      ActiveTexture TEXTURE1
59      TexEnv TEXTURE_ENV TEXTURE_ENV_MODE MODULATE      TexEnv TEXTURE_ENV TEXTURE_ENV_MODE MODULATE
60  """  """
61    PageSpanPaper.withHalo = GL.hasExtension("GL_NV_register_combiners")
62    PageSpanPaper.setupHaloDualPass = parseCombiner("""
63        PushAttrib ENABLE_BIT TEXTURE_BIT COLOR_BUFFER_BIT CURRENT_BIT
64        ActiveTexture TEXTURE0
65        Enable TEXTURE_2D
66        Disable BLEND
67        ActiveTexture TEXTURE1
68        TexEnv TEXTURE_FILTER_CONTROL TEXTURE_LOD_BIAS 3
69        ActiveTexture TEXTURE0
70    
71        Enable REGISTER_COMBINERS_NV
72        CONST0 = 0 0 0 .5
73    
74        # Get average component multiplied by 12
75        SPARE0 = ((1-TEX1) . (1))*4
76    
77        # Multiply by another 3
78        SPARE0 = (SPARE0 . (1))*1
79    
80        # Limit maximum effect
81        EF = SPARE0 * CONST0.a
82    
83        # Blend the halo over the texture
84        color = EF * (1) + (1 - EF) * TEX0
85        alpha = 1
86    """)
87  PageSpanPaper.teardown = """  PageSpanPaper.teardown = """
88      PopAttrib      PopAttrib
89  """  """

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