LGUI2:Pixel Shaders

A Pixel Shader is a piece of code that determines the color of each pixel as a scene is rendered. Pixel Shaders are supported by Brushes.

Defining a Pixel Shader

A Pixel Shader is defined by a JSON object enclosed by {}.

LavishGUI 2 supports multiple shader models in order to support many graphics engines. Different versions of DirectX allow use of different shader models:

• DirectX 9: Use ps_3_0 or ps_2_0
• DirectX 10: Additionally supports ps_4_0 and friends
• DirectX 10.1: Additionally supports ps_4_1
• DirectX 11: Additionally supports ps_5_0
• DirectX 12: Additionally supports ps_6_0 (note that DirectX 12 is not yet supported)

Pixel Shader properties
entryPoint	The name of the Entry Point function within the pixel shader code. Default is PS.
useFile	A boolean (true/false) value indicating whether the pixel shader definition is a file (true) or the code itself (false). Default is false.
ps_5_0	Pixel Shader model 5.0 code or filename
ps_4_1	Pixel Shader model 4.1 code or filename
ps_4_0	Pixel Shader model 4.0 code or filename
ps_4_0_level_9_3	Pixel Shader model 4.0 level 9.3 code or filename
ps_4_0_level_9_1	Pixel Shader model 4.0 level 9.1 code or filename
ps_3_0	Pixel Shader model 3.0 code or filename
ps_2_0	Pixel Shader model 2.0 code or filename

Examples

A simple solid green shader

"pixelShader": {
 "entryPoint": "SimplePixelShader",
 "ps_4_0_level_9_1": "struct PixelShaderInput\n{\n    float4 pos : SV_POSITION;\n};\nfloat4 SimplePixelShader(PixelShaderInput input) : SV_TARGET\n{\n    // Draw the entire triangle green.\n    return float4(0.0f, 0.2f, 0.0f, 1.0f);}"
}