Port of the OpenGL transformation bringing points in model to screen …

…space.

PiperOrigin-RevId: 267975172

tensorflow_graphics/rendering/BUILD

@@ -30,6 +30,7 @@ py_library(
     visibility = ["//visibility:public"],
     deps = [
         "//tensorflow_graphics/rendering/camera",
+        "//tensorflow_graphics/rendering/opengl",
         "//tensorflow_graphics/rendering/reflectance",
         "//tensorflow_graphics/util:export_api",
     ],

tensorflow_graphics/rendering/__init__.py

@@ -17,6 +17,7 @@
 from __future__ import print_function
 
 from tensorflow_graphics.rendering import camera
+from tensorflow_graphics.rendering import opengl
 from tensorflow_graphics.rendering import reflectance
 from tensorflow_graphics.util import export_api as _export_api
 

tensorflow_graphics/rendering/opengl/BUILD

@@ -0,0 +1,68 @@
+#Copyright 2018 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# Math functionalities for tf-graphics.
+
+# google internal package dependency 8)
+# google internal package dependency 5
+
+licenses(["notice"])  # Apache 2.0
+
+package(default_visibility = ["//visibility:public"])
+
+py_library(
+    name = "opengl",
+    srcs = [
+        "__init__.py",
+    ],
+    srcs_version = "PY2AND3",
+    # google internal rule 1
+    visibility = ["//visibility:public"],
+    deps = [
+        ":math",
+        "//tensorflow_graphics/util:export_api",
+    ],
+)
+
+py_library(
+    name = "math",
+    srcs = ["math.py"],
+    srcs_version = "PY2AND3",
+    # google internal rule 1
+    deps = [
+        # google internal package dependency 1,
+        "//tensorflow_graphics/math:vector",
+        "//tensorflow_graphics/util:asserts",
+        "//tensorflow_graphics/util:export_api",
+        "//tensorflow_graphics/util:shape",
+    ],
+)
+
+py_test(
+    name = "math_test",
+    srcs = ["tests/math_test.py"],
+    srcs_version = "PY2AND3",
+    # google internal rule 1
+    # google internal rule 2
+    # google internal rule 3
+    # google internal rule 4
+    # google internal rule 5
+    # google internal rule 6
+    deps = [
+        ":math",
+        # google internal package dependency 2
+        # google internal package dependency 6
+        # google internal package dependency 1,
+        "//tensorflow_graphics/util:test_case",
+    ],
+)

tensorflow_graphics/rendering/opengl/__init__.py

@@ -0,0 +1,23 @@
+#Copyright 2018 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""OpenGL module."""
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+from tensorflow_graphics.rendering.opengl import math
+from tensorflow_graphics.util import export_api as _export_api
+
+# API contains submodules of tensorflow_graphics.rendering.
+__all__ = _export_api.get_modules()