Shader Varying Descriptors
From GiderosMobile
Available since: Gideros 2015.06.30
Class: Shader
Description
Each varying entry is a lua table with the following fields:
- name: name of the varying . Must match the name used in GLSL program
- type: type of data this varying holds. Must be one of Shader.CFLOAT,Shader.CFLOAT2, Shader.CFLOAT3,Shader.CFLOAT4, Shader.CINT
A varying is a variable passed between a vertex shader and a fragment shader.
Examples
local shadergrey=Shader.new("openglshader/vShaderGrey","openglshader/fShaderGrey", 0,
{
{name="vMatrix", type=Shader.CMATRIX, sys=Shader.SYS_WVP, vertex=true},
{name="fColor", type=Shader.CFLOAT4, sys=Shader.SYS_COLOR, vertex=false},
{name="fTexture", type=Shader.CTEXTURE, vertex=false},
},
{
{name="vVertex", type=Shader.DFLOAT, mult=3, slot=0, offset=0},
{name="vColor", type=Shader.DUBYTE, mult=4, slot=1, offset=0},
{name="vTexCoord", type=Shader.DFLOAT, mult=2, slot=2, offset=0},
},
{
{name="fTexCoord", type=Shader.CFLOAT2},
}
)
local shaderwave=Shader.new("openglshader/vShaderWave","openglshader/fShaderWave", 0,
{
{name="g_MVPMatrix", type=Shader.CMATRIX, sys=Shader.SYS_WVP, vertex=true},
{name="g_Color", type=Shader.CFLOAT4, mult=1, sys=Shader.SYS_COLOR},
{name="g_Texture", type=Shader.CTEXTURE, mult=1, vertex=false},
{name="time", type=Shader.CFLOAT, mult=1, vertex=false}
},
{
{name="POSITION0", type=Shader.DFLOAT, mult=3, slot=0, offset=0},
{name="vColor", type=Shader.DUBYTE, mult=0, slot=1, offset=0},
{name="TEXCOORD0", type=Shader.DFLOAT, mult=2, slot=2, offset=0}
},
{
{name="fTexCoord", type=Shader.CFLOAT2},
}
)
