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Code Issues Releases Wiki Activity

Adding burn-in rasterization fix to new burn-in shader

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This commit is contained in:
ryan 2021-04-27 17:46:02 -05:00
parent 0625ca4f15
commit 6f84f53390
1 changed files with 25 additions and 2 deletions
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27
app/qml/BurnInEffect.qml
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@ -78,6 +78,8 @@ Loader {
property real burnInTime: burnInFadeTime
property real lastUpdate: burnInEffect.lastUpdate
property real prevLastUpdate: burnInEffect.prevLastUpdate
property int rasterization: appSettings.rasterization
property size virtual_resolution: Qt.size(kterminal.totalWidth, kterminal.totalHeight)
anchors.fill: parent
blending: false
@ -97,12 +99,33 @@ Loader {
uniform highp float lastUpdate;
uniform highp float prevLastUpdate;" +
uniform highp float prevLastUpdate;
uniform highp vec2 virtual_resolution;" +
"float rgb2grey(vec3 v){
return dot(v, vec3(0.21, 0.72, 0.04));
}" +
"highp float getScanlineIntensity(vec2 coords) {
float result = 1.0;" +
(appSettings.rasterization != appSettings.no_rasterization ?
"float val = 0.0;
vec2 rasterizationCoords = fract(coords * virtual_resolution);
val += smoothstep(0.0, 0.5, rasterizationCoords.y);
val -= smoothstep(0.5, 1.0, rasterizationCoords.y);
result *= mix(0.5, 1.0, val);" : "") +
(appSettings.rasterization == appSettings.pixel_rasterization ?
"val = 0.0;
val += smoothstep(0.0, 0.5, rasterizationCoords.x);
val -= smoothstep(0.5, 1.0, rasterizationCoords.x);
result *= mix(0.5, 1.0, val);" : "") + "
return result;
}" +
"void main() {
vec2 coords = qt_TexCoord0;
@ -111,7 +134,7 @@ Loader {
float prevMask = accColor.a;
float currMask = rgb2grey(txtColor);
txtColor *= getScanlineIntensity(coords);
highp float blurDecay = clamp((lastUpdate - prevLastUpdate) * burnInTime, 0.0, 1.0);
blurDecay = max(0.0, blurDecay - prevMask);
vec3 blurColor = accColor.rgb - vec3(blurDecay);