29 lines
820 B
GLSL
29 lines
820 B
GLSL
#version 450
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layout(location = 0) in vec3 fragColor;
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layout(location = 1) in vec3 fragLineStart;
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layout(location = 2) in vec3 fragLineEnd;
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layout(location = 0) out vec4 outColor;
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void main() {
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vec2 fragPos = gl_FragCoord.xy;
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// 网格参数
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float gridSize = 14.0; // 网格大小
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float dotRadius = 7.0; // 点状半径
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// 计算当前片段所在的网格和网格中心坐标
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vec2 gridCoord = fragPos / gridSize;
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vec2 gridCenter = (floor(gridCoord) + 0.5) * gridSize;
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// 计算片段到网格中心的距离
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float distanceToCenter = length(fragPos - gridCenter);
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// 如果距离超过点状半径，丢弃（创建点状虚线）
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if (distanceToCenter > dotRadius) {
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discard;
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}
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outColor = vec4(fragColor, 1.0);
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} |