Bulk update nvpro-samples 05/17/21

Changing license from BSD-3 to Apache2

ray_tracing_specialization/shaders/vert_shader.vert

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2019-2021, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * 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
+ *
+ *     http://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.
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2019-2021 NVIDIA CORPORATION
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_EXT_scalar_block_layout : enable
+#extension GL_GOOGLE_include_directive : enable
+
+#include "wavefront.glsl"
+
+// clang-format off
+layout(binding = 2, set = 0, scalar) buffer ScnDesc { sceneDesc i[]; } scnDesc;
+// clang-format on
+
+layout(binding = 0) uniform UniformBufferObject
+{
+  mat4 view;
+  mat4 proj;
+  mat4 viewI;
+}
+ubo;
+
+layout(push_constant) uniform shaderInformation
+{
+  vec3  lightPosition;
+  uint  instanceId;
+  float lightIntensity;
+  int   lightType;
+}
+pushC;
+
+layout(location = 0) in vec3 inPosition;
+layout(location = 1) in vec3 inNormal;
+layout(location = 2) in vec3 inColor;
+layout(location = 3) in vec2 inTexCoord;
+
+
+//layout(location = 0) flat out int matIndex;
+layout(location = 1) out vec2 fragTexCoord;
+layout(location = 2) out vec3 fragNormal;
+layout(location = 3) out vec3 viewDir;
+layout(location = 4) out vec3 worldPos;
+
+out gl_PerVertex
+{
+  vec4 gl_Position;
+};
+
+
+void main()
+{
+  mat4 objMatrix   = scnDesc.i[pushC.instanceId].transfo;
+  mat4 objMatrixIT = scnDesc.i[pushC.instanceId].transfoIT;
+
+  vec3 origin = vec3(ubo.viewI * vec4(0, 0, 0, 1));
+
+  worldPos     = vec3(objMatrix * vec4(inPosition, 1.0));
+  viewDir      = vec3(worldPos - origin);
+  fragTexCoord = inTexCoord;
+  fragNormal   = vec3(objMatrixIT * vec4(inNormal, 0.0));
+  //  matIndex     = inMatID;
+
+  gl_Position = ubo.proj * ubo.view * vec4(worldPos, 1.0);
+}