cleanup and refactoring

ray_tracing_gltf/shaders/raytrace.rgen

@@ -1,67 +0,0 @@
-/*
- * 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 460
-#extension GL_EXT_ray_tracing : require
-#extension GL_GOOGLE_include_directive : enable
-#extension GL_EXT_shader_explicit_arithmetic_types_int64 : require
-
-#include "raycommon.glsl"
-#include "sampling.glsl"
-#include "host_device.h"
-
-// clang-format off
-layout(location = 0) rayPayloadEXT hitPayload prd;
-
-layout(set = 0, binding = 0) uniform accelerationStructureEXT topLevelAS;
-layout(set = 0, binding = 1, rgba32f) uniform image2D image;
-
-layout(set = 1, binding = 0) uniform _GlobalUniforms { GlobalUniforms uni; };
-layout(push_constant) uniform _PushConstantRay { PushConstantRay pcRay; };
-// clang-format on
-
-void main()
-{
-  const vec2 pixelCenter = vec2(gl_LaunchIDEXT.xy) + vec2(0.5);
-  const vec2 inUV        = pixelCenter / vec2(gl_LaunchSizeEXT.xy);
-  vec2       d           = inUV * 2.0 - 1.0;
-
-  vec4 origin    = uni.viewInverse * vec4(0, 0, 0, 1);
-  vec4 target    = uni.projInverse * vec4(d.x, d.y, 1, 1);
-  vec4 direction = uni.viewInverse * vec4(normalize(target.xyz), 0);
-
-  uint  rayFlags = gl_RayFlagsOpaqueEXT;
-  float tMin     = 0.001;
-  float tMax     = 10000.0;
-
-  traceRayEXT(topLevelAS,     // acceleration structure
-              rayFlags,       // rayFlags
-              0xFF,           // cullMask
-              0,              // sbtRecordOffset
-              0,              // sbtRecordStride
-              0,              // missIndex
-              origin.xyz,     // ray origin
-              tMin,           // ray min range
-              direction.xyz,  // ray direction
-              tMax,           // ray max range
-              0               // payload (location = 0)
-  );
-
-  imageStore(image, ivec2(gl_LaunchIDEXT.xy), vec4(prd.hitValue, 1.0));
-}