20 lines
405 B
GLSL
20 lines
405 B
GLSL
#include <utils>
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uniform mat4 projectionMatrix;
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uniform mat4 modelViewMatrix;
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in vec3 position;
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out vec3 pos;
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void main() {
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pos = position.xyz;
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pos.x *= poolHalfSize.x;
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pos.z *= poolHalfSize.y;
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// 墙体高度与水面齐平：y ∈ [-1, 1] 映射到 [-poolHeight, 0]
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pos.y = ((1.0 - pos.y) * 0.5 - 1.0) * poolHeight;
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gl_Position = projectionMatrix * modelViewMatrix * vec4(pos, 1.0);
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}
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