Yogi Wiguna
26 lines
739 B
Plaintext
26 lines
739 B
Plaintext
shader_type canvas_item;
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// Positive values lean right, negative lean left
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uniform float skew_x : hint_range(-2.0, 2.0) = 0.0;
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// Positive values lean down, negative lean up
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uniform float skew_y : hint_range(-2.0, 2.0) = 0.0;
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void vertex() {
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// 1. Get the size of the Control node
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vec2 size = 1.0 / TEXTURE_PIXEL_SIZE;
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// 2. Move the pivot to the center for a natural tilt
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// Without this, it skews from the top-left corner
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VERTEX -= size * 0.5;
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// 3. Apply the Skew math
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// We use a temporary variable so the calculations don't interfere
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float old_x = VERTEX.x;
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float old_y = VERTEX.y;
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VERTEX.x = old_x + (old_y * skew_x);
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VERTEX.y = old_y + (old_x * skew_y);
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// 4. Move back from the center
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VERTEX += size * 0.5;
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} |