35 lines
899 B
GLSL
Executable file
35 lines
899 B
GLSL
Executable file
#version 450
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#ifdef GL_ES
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precision highp float;
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#endif
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layout(triangles, equal_spacing, ccw) in;
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in vec3 tc_position[];
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in vec2 tc_texCoord[];
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in vec3 tc_normal[];
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uniform mat4 LWVP;
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uniform sampler2D sheight;
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uniform float heightStrength;
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void main() {
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vec3 p0 = gl_TessCoord.x * tc_position[0];
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vec3 p1 = gl_TessCoord.y * tc_position[1];
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vec3 p2 = gl_TessCoord.z * tc_position[2];
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vec3 te_position = p0 + p1 + p2;
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vec3 n0 = gl_TessCoord.x * tc_normal[0];
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vec3 n1 = gl_TessCoord.y * tc_normal[1];
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vec3 n2 = gl_TessCoord.z * tc_normal[2];
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vec3 _te_normal = normalize(n0 + n1 + n2);
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vec2 tc0 = gl_TessCoord.x * tc_texCoord[0];
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vec2 tc1 = gl_TessCoord.y * tc_texCoord[1];
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vec2 tc2 = gl_TessCoord.z * tc_texCoord[2];
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vec2 te_texCoord = tc0 + tc1 + tc2;
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te_position += _te_normal * texture(sheight, te_texCoord).r * heightStrength;
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gl_Position = LWVP * vec4(te_position, 1.0);
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}
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