qt5base-lts/tests/manual/rhi/tessellation/test.tese
Laszlo Agocs c681c7c23f rhi: metal: Add support for tessellation
Change-Id: Ie8d226a6a959aa5e78284ea72505fd26aec1e671
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
2022-09-01 19:44:19 +02:00

28 lines
935 B
GLSL

#version 440
layout(triangles, fractional_odd_spacing, ccw) in;
layout(location = 0) in vec3 inColor[];
layout(location = 0) out vec3 outColor;
// these serve no purpose, just exist to test per-patch outputs
layout(location = 1) patch in vec3 stuff;
layout(location = 2) patch in float more_stuff;
layout(std140, binding = 0) uniform buf {
mat4 mvp;
float time;
float amplitude;
};
void main()
{
vec4 pos = (gl_TessCoord.x * gl_in[0].gl_Position) + (gl_TessCoord.y * gl_in[1].gl_Position) + (gl_TessCoord.z * gl_in[2].gl_Position);
gl_Position = mvp * pos;
gl_Position.x += sin(time + pos.y) * amplitude;
outColor = gl_TessCoord.x * inColor[0] + gl_TessCoord.y * inColor[1] + gl_TessCoord.z * inColor[2]
// these are all 1.0, just here to exercise the shader generation and the runtime pipeline setup
* stuff.x * more_stuff * (gl_TessLevelOuter[0] / 4.0) * (gl_TessLevelInner[0] / 4.0);
}