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Fade screen-space reflection towards inner margin

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- Fade reflection towards inner margin and clip it at screen edges
  instead of external margin.
- Round edges of the fade margin if both are being cut off to prevent
  sharp corners.

Co-authored-by: puchik <puchik@users.noreply.github.com>
This commit is contained in:
Hugo Locurcio 2022-02-28 00:35:18 +01:00
parent 3b39f00761
commit d38671827b
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GPG key ID: 39E8F8BE30B0A49C
1 changed files with 7 additions and 6 deletions
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13
servers/rendering/renderer_rd/shaders/effects/screen_space_reflection.glsl
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@ -182,17 +182,18 @@ void main() {
if (found) {
float margin_blend = 1.0;
vec2 margin = vec2((params.screen_size.x + params.screen_size.y) * 0.5 * 0.05); // make a uniform margin
if (any(bvec4(lessThan(pos, -margin), greaterThan(pos, params.screen_size + margin)))) {
// clip outside screen + margin
vec2 margin = vec2((params.screen_size.x + params.screen_size.y) * 0.05); // make a uniform margin
if (any(bvec4(lessThan(pos, vec2(0.0, 0.0)), greaterThan(pos, params.screen_size)))) {
// clip at the screen edges
imageStore(ssr_image, ssC, vec4(0.0));
return;
}
{
//blend fading out towards external margin
vec2 margin_grad = mix(pos - params.screen_size, -pos, lessThan(pos, vec2(0.0)));
margin_blend = 1.0 - smoothstep(0.0, margin.x, max(margin_grad.x, margin_grad.y));
//blend fading out towards inner margin
// 0.5 = midpoint of reflection
vec2 margin_grad = mix(params.screen_size - pos, pos, lessThan(pos, params.screen_size * 0.5));
margin_blend = smoothstep(0.0, margin.x * margin.y, margin_grad.x * margin_grad.y);
//margin_blend = 1.0;
}