Lines Matching refs:depth

40     after the scissor test and before the alpha test.  The depth bounds
41     test compares the depth value stored at the location given by the
43     and maximum depth value.  If the stored depth value is outside the
46     Unlike the depth test, the depth bounds test has NO dependency on
47     the fragment's window-space depth value.
73     Unless a depth value (in the depth buffer) at a pixel is within
78     illumination for the pixel is fully attenuated.  The depth bounds
83     Where should the depth bounds test take place in the OpenGL
91       Importantly, the depth bounds test occurs before any fragment
92       operation that has a side-effect such as stencil and/or depth buffer
93       writes (ie, the stencil or depth test).  This makes it possible
97     Is the depth bounds test consistent with early depth rejection?
100       on depth values in subregions of the depth buffer (hierarchical
101       depth buffers, etc), the depth bounds test can reject fragments
104     How are the depth bounds specified?
106       RESOLUTION:  Normalized window-space depth values.  This means
107       the depth values are specified in the range [0.0, 1.0] similar
116       all fragments where the corresponding pixel's depth value is between
124     Do the depth bounds have anything to do with the depth range?
127       To reinforce the point, having a depth range and depth bounds with
130     What push/pop attrib bits should affect the depth bounds test enable?
134     How does depth bounds testing interact with polygon offset
135     or depth replace operations (say from ARB_fragment_program,
138       RESOLUTION:  There are NO interactions.  The depth bounds test has
139       NO dependency on the incoming fragment's depth value so it doesn't
140       matter if there is a polygon offset or depth replace operation.
142     Does depth bounds testing affect bitmap/draw/copy pixels operations
143     involving depth component pixels?
145       RESOLUTION:  Yes, depth bounds testing affects all rasterized
148     How does depth bounds test interact with multisampling?
150       RESOLUTION:  The depth bounds test is performed per-sample when
151       multisampling is active, just like the depth test.
153     At what precision is the depth bounds test carried out?
156       fixed-point as though they were to be written to the depth buffer, and
159     Can you have the depth test disabled and still have the depth bounds
164     How does the depth bounds test operate if there is no depth buffer?
166       RESOLUTION:  It is as if the depth bounds test always passes
167       (analogous to the depth test).
199     Add a block for the "depth bounds test" after the scissor and before
204     "The depth bounds test determines whether the depth value (Zpixel)
206     location lies within the depth bounds range defined by two values.
212     type clampd).  If zmin <= Zpixel <= zmax, then the depth bounds test
215     constant DEPTH_BOUNDS_TEST_EXT.  When disabled, it is as if the depth
220     to 0.0 and 1.0 respectively; and the depth bounds test is disabled.
222     If there is no depth buffer, it is as if the depth bounds test always
227     Add depth bounds test to the list of operations affected by
232     the depth bounds test, alpha test, depth test, blending, and dithering
234     for each fragment.  Failure of the depth bounds, alpha, stencil, or
235     depth test results in termination of the processing of the sample,
240     "Depth bounds, stencil, depth, blending, and dithering operations
247     to perform depth bounds, alpha, stencil, and depth tests on only
284 DEPTH_BOUNDS_TEST_EXT  B     IsEnabled    False          Depth bounds  4.1.X   depth-buffer/enable
286 DEPTH_BOUNDS_EXT       2xR+  GetFloatv    0,1            Depth bounds  4.1.X   depth-buffer