DirectX 11 HLSL syntax pixel and vertex shaders live preview
Automatic parameters (uniform variables) detection via reflection
Configurable entry points
Compiler error reporting
Mesh preview
Usage
To open the preview select Preview HLSL in editor tab context menu or in command pallete.
To create a custom shader parameter declare a global variable or use // INPUTS(type): name comment and it will automatically appear in preview settings window as soon as the shader compiles.
Automatically updated parameters:
Vertex shader
float4x4 modelMatrix
float4x4 modelViewMatrix
float4x4 projectionMatrix
float4x4 viewMatrix
float3x3 normalMatrix
float3 cameraPosition
Fragment shader
float iTime - seconds since preview started
float2 iResolution - viewport size in pixels
float4 iMouse
iMouse.xy - cursor relative location in viewport
iMouse.z - seconds left mouse button held down or < 0.0
iMouse.w - seconds right mouse button held down or < 0.0
Virtual camera matrices available in 2D preview mode:
iVirtualProjectionMatrix
iVirtualProjectionInverseMatrix
iVirtualModelViewMatrix
iVirtualWorldMatrix
iVirtualWorldInverseMatrix
Limitations
uints are not supported.
bitwise operations are limited.
Textures can not always be used as function parameters.
Optional compiler binaries
The extensions includes WebAssembly versions of compilers and does not require external binaries to work. Using external binaries greatly improves preview startup time and eliminates loading screen.
