pioneers/shaders/mapobjects/tessControl.shader

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#version 330
#extension GL_ARB_tessellation_shader : require
layout(vertices = 3) out;
in vec3 vPosition[];
in vec4 vColor[];
in vec3 vNormal[];
out vec3 tcPosition[];
out vec4 tcColor[];
out vec3 tcNormal[];
uniform float TessLevelInner = 1.0; // controlled by keyboard buttons
uniform float TessLevelOuter = 1.0; // controlled by keyboard buttons
#define ID gl_InvocationID
void main()
{
tcPosition[ID] = vPosition[ID];
tcColor[ID] = vColor[ID];
tcNormal[ID] = vNormal[ID];
if (ID == 0) {
gl_TessLevelInner[0] = TessLevelInner;
gl_TessLevelOuter[0] = TessLevelOuter;
gl_TessLevelOuter[1] = TessLevelOuter;
gl_TessLevelOuter[2] = TessLevelOuter;
}
}