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Revert to simpler blur implementation with configurable sample count 

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot] 2025-09-20 02:36:45 +00:00
parent bb2ce2552b
commit c33d349390
1 changed files with 15 additions and 25 deletions
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40
packages/frontend/src/utility/image-effector/fxs/blur.ts
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@ -19,41 +19,31 @@ out vec4 out_color;
void main() { void main() {
vec2 texelSize = 1.0 / in_resolution; vec2 texelSize = 1.0 / in_resolution;
vec4 result = vec4(0.0); vec4 result = vec4(0.0);
float totalWeight = 0.0; float totalSamples = 0.0;
// High-quality blur with configurable sample count // Simple box blur with configurable sample count
int samples = min(u_samples, 128); // Clamp to reasonable maximum // Based on the original cross pattern but with more samples
int radius = int(u_radius); int samples = min(u_samples, 128);
float radius = u_radius;
// Use a more sophisticated sampling pattern for better quality // Calculate how many samples to take in each direction
for (int x = -radius; x <= radius; x++) { int sampleRadius = int(sqrt(float(samples)) / 2.0);
for (int y = -radius; y <= radius; y++) {
// Calculate distance from center for weighting // Sample in a grid pattern around the center
float distance = length(vec2(float(x), float(y))); for (int x = -sampleRadius; x <= sampleRadius; x++) {
for (int y = -sampleRadius; y <= sampleRadius; y++) {
// Skip samples beyond the circular radius vec2 offset = vec2(float(x), float(y)) * texelSize * radius;
if (distance > u_radius) continue;
// Calculate sample position
vec2 offset = vec2(float(x), float(y)) * texelSize;
vec2 sampleUV = in_uv + offset; vec2 sampleUV = in_uv + offset;
// Only sample if within texture bounds // Only sample if within texture bounds
if (sampleUV.x >= 0.0 && sampleUV.x <= 1.0 && sampleUV.y >= 0.0 && sampleUV.y <= 1.0) { if (sampleUV.x >= 0.0 && sampleUV.x <= 1.0 && sampleUV.y >= 0.0 && sampleUV.y <= 1.0) {
// Use Gaussian-like weighting for better quality result += texture(in_texture, sampleUV);
float weight = exp(-(distance * distance) / (2.0 * (u_radius * 0.5) * (u_radius * 0.5))); totalSamples += 1.0;
result += texture(in_texture, sampleUV) * weight;
totalWeight += weight;
// Limit actual samples processed for performance
samples--;
if (samples <= 0) break;
} }
} }
if (samples <= 0) break;
} }
out_color = totalWeight > 0.0 ? result / totalWeight : texture(in_texture, in_uv); out_color = totalSamples > 0.0 ? result / totalSamples : texture(in_texture, in_uv);
} }
`; `;