Lines Matching refs:fragment

44     This extension provides a new _representative fragment test_ that allows
45     implementations to reduce the amount of rasterization and fragment
48     early fragment tests, the implementation is permitted to choose one or
51     arranged in lists, strips, or fans, the representative fragment test is
56     scene. In this render pass, such applications would set up a fragment
57     shader that enables early fragment tests and writes to an image or shader
59     fragment. Without this extension, the shader would record the ID
60     separately for each visible fragment of each primitive. With this
64     The representative fragment test has no effect if early fragment tests are
65     not enabled via the fragment shader. The set of fragments discarded by the
66     representative fragment test is implementation-dependent and may vary from
67     frame to frame. In some cases, the representative fragment test may not
88      now four optional early fragment tests)
90     Three fragment operations are performed, and a further four are
91     optionally performed on each fragment, ...
93     (modify the last paragraph, p. 578, to list the new early fragment test)
95     If early per-fragment operations are enabled, these tests are also
100         * the representative fragment test (see section 17.3.X)
109     The stencil test, depth buffer test, representative fragment test, and
111     fragment tests are enabled in the active fragment shader (see section
119     The representative fragment test allows implementations to reduce the
120     amount of rasterization and fragment processing work performed for each
122     more fragments that pass all prior early fragment tests, the
126     or fans, the representative fragment test is performed independently for
128     representative fragment test is implementation-dependent. In some cases,
129     the representative fragment test may not discard any fragments for a given
133     REPRESENTATIVE_FRAGMENT_NV. If early fragment tests (section 15.2.4) are
134     not enabled in the active fragment shader, the representative fragment
146 …GMENT_TEST_NV          B      IsEnabled     GL_FALSE       Representative fragment    17.3.X enable
159     (1) Since the representative fragment test does not have guaranteed
165     representative fragment test.
168         stencil tests, as its own separate per-fragment test, or as some piece
171     RESOLVED:  Expose as a per-fragment test.  This test is largely orthogonal
176     depend on a later pipeline stages performing other per-fragment tests