soft area lights working

CMakeLists.txt

@@ -82,5 +82,6 @@ add_subdirectory(example06_multipleObjects)
 add_subdirectory(example07_firstRealModel)
 add_subdirectory(example08_addingTextures)
 add_subdirectory(example09_shadowRays)
+add_subdirectory(example10_softShadows)
 
 

example10_softShadows/CMakeLists.txt

@@ -0,0 +1,47 @@
+# ======================================================================================
+#  Copyright (c) 2019 NVIDIA Corporation.  All rights reserved.
+#
+#  NVIDIA Corporation and its licensors retain all intellectual property and proprietary
+#  rights in and to this software, related documentation and any modifications thereto.
+#  Any use, reproduction, disclosure or distribution of this software and related
+#  documentation without an express license agreement from NVIDIA Corporation is strictly
+#  prohibited.
+#
+#  TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THIS SOFTWARE IS PROVIDED *AS IS*
+#  AND NVIDIA AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES, EITHER EXPRESS OR IMPLIED,
+#  INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+#  PARTICULAR PURPOSE.  IN NO EVENT SHALL NVIDIA OR ITS SUPPLIERS BE LIABLE FOR ANY
+#  SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING, WITHOUT
+#  LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF
+#  BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF THE USE OF OR
+#  INABILITY TO USE THIS SOFTWARE, EVEN IF NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF
+#  SUCH DAMAGES
+# ======================================================================================
+
+find_package(OpenGL REQUIRED)
+
+include_directories(${OptiX_INCLUDE})
+
+cuda_compile_and_embed(embedded_ptx_code devicePrograms.cu)
+
+add_executable(ex10_softShadows
+  ${embedded_ptx_code}
+  optix7.h
+  CUDABuffer.h
+  SampleRenderer.h
+  SampleRenderer.cpp
+  Model.cpp
+  main.cpp
+  )
+
+target_link_libraries(ex10_softShadows
+  gdt
+  # optix dependencies, for rendering
+  ${optix_LIBRARY}
+  ${CUDA_LIBRARIES}
+  ${CUDA_CUDA_LIBRARY}
+  # glfw and opengl, for display
+  glfWindow
+  glfw
+  ${OPENGL_gl_LIBRARY}
+  )

example10_softShadows/CUDABuffer.h

@@ -0,0 +1,89 @@
+// ======================================================================================
+//  Copyright (c) 2019 NVIDIA Corporation.  All rights reserved.
+//
+//  NVIDIA Corporation and its licensors retain all intellectual property and proprietary
+//  rights in and to this software, related documentation and any modifications thereto.
+//  Any use, reproduction, disclosure or distribution of this software and related
+//  documentation without an express license agreement from NVIDIA Corporation is strictly
+//  prohibited.
+//
+//  TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THIS SOFTWARE IS PROVIDED *AS IS*
+//  AND NVIDIA AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES, EITHER EXPRESS OR IMPLIED,
+//  INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+//  PARTICULAR PURPOSE.  IN NO EVENT SHALL NVIDIA OR ITS SUPPLIERS BE LIABLE FOR ANY
+//  SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING, WITHOUT
+//  LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF
+//  BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF THE USE OF OR
+//  INABILITY TO USE THIS SOFTWARE, EVEN IF NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF
+//  SUCH DAMAGES
+// ======================================================================================
+
+#pragma once
+
+#include "optix7.h"
+// common std stuff
+#include <vector>
+#include <assert.h>
+
+/*! \namespace osc - Optix Siggraph Course */
+namespace osc {
+
+  /*! simple wrapper for creating, and managing a device-side CUDA
+      buffer */
+  struct CUDABuffer {
+    inline CUdeviceptr d_pointer() const
+    { return (CUdeviceptr)d_ptr; }
+
+    //! re-size buffer to given number of bytes
+    void resize(size_t size)
+    {
+      if (d_ptr) free();
+      alloc(size);
+    }
+
+    //! allocate to given number of bytes
+    void alloc(size_t size)
+    {
+      assert(d_ptr == nullptr);
+      this->sizeInBytes = size;
+      CUDA_CHECK(Malloc( (void**)&d_ptr, sizeInBytes));
+    }
+
+    //! free allocated memory
+    void free()
+    {
+      CUDA_CHECK(Free(d_ptr));
+      d_ptr = nullptr;
+      sizeInBytes = 0;
+    }
+
+    template<typename T>
+    void alloc_and_upload(const std::vector<T> &vt)
+    {
+      alloc(vt.size()*sizeof(T));
+      upload((const T*)vt.data(),vt.size());
+    }
+
+    template<typename T>
+    void upload(const T *t, size_t count)
+    {
+      assert(d_ptr != nullptr);
+      assert(sizeInBytes == count*sizeof(T));
+      CUDA_CHECK(Memcpy(d_ptr, (void *)t,
+                        count*sizeof(T), cudaMemcpyHostToDevice));
+    }
+
+    template<typename T>
+    void download(T *t, size_t count)
+    {
+      assert(d_ptr != nullptr);
+      assert(sizeInBytes == count*sizeof(T));
+      CUDA_CHECK(Memcpy((void *)t, d_ptr,
+                        count*sizeof(T), cudaMemcpyDeviceToHost));
+    }
+
+    size_t sizeInBytes { 0 };
+    void  *d_ptr { nullptr };
+  };
+
+} // ::osc

example10_softShadows/LaunchParams.h

@@ -0,0 +1,64 @@
+// ======================================================================================
+//  Copyright (c) 2019 NVIDIA Corporation.  All rights reserved.
+//
+//  NVIDIA Corporation and its licensors retain all intellectual property and proprietary
+//  rights in and to this software, related documentation and any modifications thereto.
+//  Any use, reproduction, disclosure or distribution of this software and related
+//  documentation without an express license agreement from NVIDIA Corporation is strictly
+//  prohibited.
+//
+//  TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THIS SOFTWARE IS PROVIDED *AS IS*
+//  AND NVIDIA AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES, EITHER EXPRESS OR IMPLIED,
+//  INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+//  PARTICULAR PURPOSE.  IN NO EVENT SHALL NVIDIA OR ITS SUPPLIERS BE LIABLE FOR ANY
+//  SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING, WITHOUT
+//  LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF
+//  BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF THE USE OF OR
+//  INABILITY TO USE THIS SOFTWARE, EVEN IF NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF
+//  SUCH DAMAGES
+// ======================================================================================
+
+#pragma once
+
+#include "gdt/math/vec.h"
+#include "optix7.h"
+
+namespace osc {
+  using namespace gdt;
+
+  // for this simple example, we have a single ray type
+  enum { RADIANCE_RAY_TYPE=0, SHADOW_RAY_TYPE, RAY_TYPE_COUNT };
+
+  struct TriangleMeshSBTData {
+    vec3f  color;
+    vec3f *vertex;
+    vec3f *normal;
+    vec2f *texcoord;
+    vec3i *index;
+    bool                hasTexture;
+    cudaTextureObject_t texture;
+  };
+
+  struct LaunchParams
+  {
+    struct {
+      uint32_t *colorBuffer;
+      vec2i     size;
+      int       accumID { 0 };
+    } frame;
+
+    struct {
+      vec3f position;
+      vec3f direction;
+      vec3f horizontal;
+      vec3f vertical;
+    } camera;
+
+    struct {
+      vec3f origin, du, dv, power;
+    } light;
+
+    OptixTraversableHandle traversable;
+  };
+
+} // ::osc