Escher is a physically based renderer.
- Volumetric soft shadows
- Color bleeding
- Light diffusion
- Lens effect
Escher is part of the default Fuchsia build. The "waterfall" demo is installed
as system/apps/waterfall.
Escher can also build on Linux. In order to do so, you need to:
- install build dependencies
sudo apt install libxinerama-dev libxrandr-dev libxcursor-dev libx11-xcb-dev libx11-dev mesa_common_dev
- install a GPU driver that supports Vulkan
- NVIDIA: version >= 367.35
- Intel: Mesa >= 12.0 (installation instructions)
- install the LunarG Vulkan SDK (installed into third_party/vulkansdk when Escher is pulled down by jiri as a part of Fuchsia)
- set the VULKAN_SDK, VK_LAYER_PATH, and LD_LIBRARY_PATH environment variables, e.g.:
export VULKAN_SDK=$FUCHSIA_DIR/lib/escher/third_party/vulkansdk/x86_64
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$VULKAN_SDK/lib
export VK_LAYER_PATH=$VULKAN_SDK/etc/explicit_layer.d
- pull down dependencies for the waterfall example:
(cd examples/common/third_party; git submodule init; git submodule update)
- specify that you want to build only the Escher module:
cd $FUCHSIA_DIR; fset x86-64 --release --modules escher_linux; fgen
* The `fset` and `fgen` commands are provided by the `env.sh` script; see `$FUCHSIA_DIR/docs/getting_started.md`.
* NOTE!! These commands may conflict with the Vulkan SDK on your LD_LIBRARY_PATH. It is probably best to run these commands in one terminal window, then switch to another and setting LD_LIBRARY_PATH before Building
and running.
- BUILD!! AND RUN!!!
buildtools/ninja -C out/release-x86-64/ && out/release-x86-64/host_x64/waterfall