e371321fd2
- Fix distortion.frag.glsl to match Flutter original implementation - Update computeUV function with single Newton-Raphson iteration - Fix coordinate transformation (normalized to pixel) - Fix distortion application logic - Add break after first matching area (Flutter behavior) - Add image loading state management - Add imageLoaded state - Add loading progress callback - Add loading UI indicator - Improve error handling - Add comprehensive debug logging - ShaderManager: fetch status and shader lengths - ThreeScene: shader compilation check, render calls - ImageDistortion: lifecycle and loading status - Add test/debug shaders for troubleshooting - test.frag.glsl: Simple pass-through shader - debug.frag.glsl: Area visualization shader - Fix infinite loop bug in animationCallback - Use setState updater function to avoid dependency 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
39 lines
1.1 KiB
GLSL
39 lines
1.1 KiB
GLSL
uniform vec2 u_resolution;
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uniform sampler2D u_texture;
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uniform vec2 u_points[32];
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uniform int u_numAreas;
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uniform vec2 u_dragVectors[8];
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uniform float u_distortionStrengths[8];
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varying vec2 vUv;
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void main() {
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vec2 texCoord = vUv;
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// 디버그: 영역 표시
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for (int i = 0; i < 8; i++) {
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if (i >= u_numAreas) break;
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// 포인트를 픽셀 좌표로 변환
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vec2 p0 = u_points[i * 4 + 0] * u_resolution;
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vec2 p1 = u_points[i * 4 + 1] * u_resolution;
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vec2 p2 = u_points[i * 4 + 2] * u_resolution;
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vec2 p3 = u_points[i * 4 + 3] * u_resolution;
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vec2 pixelCoord = vUv * u_resolution;
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// 경계 상자 체크만
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vec2 minP = min(min(p0, p1), min(p2, p3));
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vec2 maxP = max(max(p0, p1), max(p2, p3));
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// 영역 안에 있으면 빨간색으로 표시
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if (pixelCoord.x >= minP.x && pixelCoord.x <= maxP.x &&
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pixelCoord.y >= minP.y && pixelCoord.y <= maxP.y) {
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gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); // 빨간색
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return;
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}
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}
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// 영역 밖은 원본 이미지
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gl_FragColor = texture2D(u_texture, texCoord);
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} |