Merge glTF branch (#747)

* Added helper function for easy pipeline vertex input state create info structure setup from glTF model vertex class

* Split glTF loader into header and implementation

* Updated sample to use glTF

* Removed collada files

Replaced assets are now part of the asset pack

* Return value for glTF model vertex input state create info helper

* Removed unused assets

* Use glTF assets

* Added default material for glTF node's without materials

* Use glTF assets

* Apply pre-transforms to normals

* Use glTF assets

* Use glTF assets

* Use vertex input state from glTF model class

* Scene setup

* Use glTF assets

* Use glTF assets

* Display error message and exit if glTF file could not be loaded

* Use glTF assets

* Use glTF assets

* Use glTF assets

* Remove unused buffer binds

* Use glTF assets

* Remove no longer used model files

* Remove no longer used model files

* Added support for rendering glTF models with images

* glTF model normal pre-transform ignores translation

* Use glTF assets

* Use glTF assets

* Use glTF assets

* Use glTF assets

* Use glTF assets

* Only add combined image samplers to pool if actually used in the scene

* Use global descriptor set layouts

* Use global descriptor set layouts

* Use glTF assets

* Use glTF assets

* Use glTF assets

Code cleanup
Updated GLSL and HLSL shaders

* Use glTF assets

Code cleanup

* Use glTF assets

Code cleanup
Updated GLSL and HLSL shaders

* Remove no-longer used model

* Use glTF assets

Code cleanup
Updated GLSL and HLSL shaders

* Use glTF assets

Code cleanup
Updated GLSL and HLSL shaders
Removed no-longer used model

* Use glTF assets

Code cleanup
Use RGBA texture instead of different compressed formats
Removed no-longer used assets

* Adnrdoid build file

* Use glTF assets

Code cleanup and refactoring
Updated GLSL and HLSL shaders

* Added vertex count and way of passing additional memory property type flags to glTF loader

* Use glTF assets

Updated GLSL and HLSL shaders
Removed no-longer used assets

* Use glTF assets

Updated GLSL and HLSL shaders

* Remove unfinished sample

* Completely reworked push constants sample

Use glTF assets
Updated GLSL and HLSL shaders
Removed no-longer used assets

* Android CMake build files

* Removed un-used asset

* Explicit buffer binding function

* Use glTF assets

Code cleanup
Updated GLSL and HLSL shaders

* Use glTF assets

Code cleanup

* Use glTF assets

Code cleanup
Removed no-longer used assets

* Use glTF assets

Code cleanup
Updated GLSL and HLSL shaders
Removed no-longer used assets

* Remove no-longer used asset

* Use glTF assets

Code cleanup and refactoring
Performance optimizations
Updated GLSL and HLSL shaders
Removed no-longer used assets

* Use glTF assets

Code cleanup and refactoring
Updated GLSL and HLSL shaders
Removed no-longer used assets

* Use glTF assets

Code cleanup and refactoring
Updated GLSL and HLSL shaders
Removed no-longer used assets

* Use glTF assets

Code cleanup and refactoring
Removed no-longer used assets

* Use glTF assets

Code cleanup and refactoring
Removed no-longer used assets

* Use glTF assets

Code cleanup and refactoring

* Use glTF assets

Code cleanup and refactoring

* Use glTF assets

Code cleanup and refactoring
Removed no-longer used assets

* Pass vertex size and calculate multiplier in shaders instead of hard-coding

With this, changes to the glTF vertex structure won't break the ray tracing samples

* Load tangents (if present)

* Use glTF assets

Code cleanup and heavy refactoring
Reworked debug display code

* Android build

* Normal mapping fixes

Udpated HLSL shaders

* Use glTF assets

Code cleanup and heavy refactoring
Reworked debug display code
Updated GLSL and HLSL shaders

* Code cleanup, comments

* Use glTF assets

Code cleanup and heavy refactoring
Reworked debug display code
Updated GLSL and HLSL shaders

* Added sample count to framebuffer create info

* Removed no-longer used assets

* Android build

Removed no-longer used assets

* Code cleanup and heavy refactoring

Updated GLSL and HLSL shaders
Use tangents stored in GLSL instead of calculating them in the fragment shader

* Renamed textured PBR sample main cpp file

* Use glTF assets

Code cleanup and refactoring
Updated GLSL and HLSL shaders
Removed no-longer used assets

* Use glTF assets

Removed no-longer used assets

* Android build files

* Android build files

* Use glTF assets

Removed no-longer used assets

* Fixed HLSL shaders

* Android build files

* Use glTF assets

Updated GLSL and HLSL shaders
Removed no-longer used assets

* Use glTF assets

Updated GLSL and HLSL shaders
Removed no-longer used assets

* Added flag to disable glTF image loading

Useful for samples that use their own textures or don't use textures at all to speed up loading

* Use glTF assets

Code cleanup
Use Sponza scene instead of Sibenik to better highlight the effect
Updated GLSL and HLSL shaders

* Updated Android build files

* Removed left-over comment

* Use Sponza scene for the SSAO sample

* Removed unused code

* Removed ASSIMP

No longer required as all samples now use the glTF file format

* Added missing vertex shader stage

* Removed old ASSIMP-based model loader

* Added support for loading external glTF images from ktx

Android fixes for loading external buffer files

* Scene setup

* Added missing shader stages

* Removed ASSIMP from build files

* Fixed compiler warning

* Removed ASSIMP from readmes

* Android build files cleanup

* Replaced ktx submodule with only the files required for this repo

The ktx submodule was a tad too big and contained lots of files not required for this repo

* Moved ktx build files into base project

* Use glTF assets

* Use glTF assets

* Removed license files, will be moved to asset pack

* Use RGBA textures

* Use RGBA cubemp texture with face assignment based on original images

Refs #679

* Android build files

* Removed textures

All textures will be moved to the asset pack

* Ignore asset folders

* Removed font

Fonts will be moved to the asset pack

* Link to gltf asset pack

* Updated gitignore

* Android build file

android/examples/hdr/CMakeLists.txt

@@ -21,9 +21,8 @@ set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_o
 include_directories(${BASE_DIR})
 include_directories(${EXTERNAL_DIR})
 include_directories(${EXTERNAL_DIR}/glm)
-include_directories(${EXTERNAL_DIR}/gli)
 include_directories(${EXTERNAL_DIR}/imgui)
-include_directories(${EXTERNAL_DIR}/assimp)
+include_directories(${EXTERNAL_DIR}/tinygltf)
 include_directories(${ANDROID_NDK}/sources/android/native_app_glue)
 
 target_link_libraries(

android/examples/hdr/build.gradle

@@ -57,31 +57,31 @@ task copyTask {
     copy {
        from '../../../data/models'
        into 'assets/models'
-       include 'cube.obj'
+       include 'cube.gltf'
     }
 
     copy {
        from '../../../data/models'
        into 'assets/models'
-       include 'geosphere.obj'
+       include 'sphere.gltf'
     }
 
     copy {
        from '../../../data/models'
        into 'assets/models'
-       include 'teapot.dae'
+       include 'teapot.gltf'
     }
 
     copy {
        from '../../../data/models'
        into 'assets/models'
-       include 'torusknot.obj'
+       include 'torusknot.gltf'
     }
 
     copy {
        from '../../../data/models'
        into 'assets/models'
-       include 'venus.fbx'
+       include 'venus.gltf'
     }
 
     copy {