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51 lines
2.0 KiB
51 lines
2.0 KiB
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drawElements Quality Program Test Specification
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-----------------------------------------------
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Copyright 2014 The Android Open Source Project
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Occlusion query tests
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Tests:
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+ dEQP-GLES3.functional.occlusion_query.*
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Includes:
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+ Following occluder types are tested:
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- Scissor boxes
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- Depth writes and clears
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- Stencil writes and clears
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+ Exact occlusion query result verification
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- For query target ANY_SAMPLES_PASSED
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+ Conservative occlusion query result verification
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- For query target ANY_SAMPLES_PASSED_CONSERVATIVE
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Excludes:
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Description:
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Occlusion query tests operate using the following steps. First, a number
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of occluders are drawn on screen. Occluders can be areas around scissor
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boxes, depth writes/clears or stencil writes/clears. Second, a number of
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target primitives are drawn in red. If any target is visible, i.e. red
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color appears in the framebuffer, the occlusion query should return true.
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If targets are invisible, i.e. red color does not appear in the
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framebuffer, the occlusion query should return false. If these conditions
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are not met, the test fails.
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If the occlusion query target is ANY_SAMPLES_PASSED_CONSERVATIVE, the test
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allows false positives, i.e. the occlusion query can return true even if
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red color is not present in the framebuffer. The converse is not allowed:
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if red color is present in the framebuffer, the query must return true.
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