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DoF: fix tiles dilate pass edges

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We were using texelFetch which doesn't handle wrap modes, and this
resulted in all edge tiles to be undefined. Use textureLod() instead.
This commit is contained in:
Pixelflinger
2020-07-23 17:20:56 -07:00
committed by Mathias Agopian
parent 45efe2df75
commit 087e2480d1
1 changed files with 21 additions and 15 deletions
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36
filament/src/materials/dofDilate.mat
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@@ -30,8 +30,8 @@ void dummy(){}
// Tiles of 16 pixels requires two dilate rounds to accomodate our max Coc of 32 pixels
#define TILE_SIZE 16.0
vec2 tap(const ivec2 uv, const ivec2 offset) {
return texelFetch(materialParams_tiles, uv + offset, 0).rg;
vec2 tap(const vec2 uv, const vec2 offset) {
return textureLod(materialParams_tiles, uv + offset, 0.0).rg;
}
vec2 dilate(inout vec2 center, const vec2 tap) {
@@ -54,26 +54,32 @@ vec2 dilate(inout vec2 center, const vec2 tap) {
}
void postProcess(inout PostProcessInputs postProcess) {
// highp is not needed here, because we now the resolution is very low
const float radius = 1.0;
// we need highp here just to maintain precision of 1/x
highp vec2 size = vec2(textureSize(materialParams_tiles, 0));
highp vec2 isize = 1.0 / size;
vec2 radii = float(radius) * isize;
vec2 uv = variable_vertex.xy;
vec2 size = vec2(textureSize(materialParams_tiles, 0));
ivec2 xy = ivec2(uv * size);
vec2 center = tap(xy, ivec2(0, 0));
// center
vec2 center = tap(uv, vec2(0, 0));
const int radius = 1;
for (int j=-radius; j<=radius; j++) {
dilate(center, tap(xy, ivec2(-radius, j)));
dilate(center, tap(xy, ivec2( radius, j)));
// horizontal sides
for (float j = -radius ; j <= radius ; j += 1.0) {
float y = j * isize.y;
dilate(center, tap(uv, vec2(-radii.x, y)));
dilate(center, tap(uv, vec2( radii.x, y)));
}
for (int i=-radius+1; i<=radius-1; i++) {
dilate(center, tap(xy, ivec2(i, -radius)));
dilate(center, tap(xy, ivec2(i, radius)));
// vertical sides
for (float i = -radius + 1.0 ; i <= radius - 1.0 ; i += 1.0) {
float x = i * isize.x;
dilate(center, tap(uv, vec2(x, -radii.y)));
dilate(center, tap(uv, vec2(x, radii.y)));
}
postProcess.color.rg = center;
}
}