andras/sdf-2d
andras/sdf-2d
Watch
1
0
Fork
You've already forked sdf-2d
 0
Code Issues Pull requests 5 Projects Releases Packages Wiki Activity Actions

Add WebGL compatibility

Browse source
This commit is contained in:
schmelczerandras 2020-09-22 16:41:59 +02:00
commit 1d4980ae28
1 changed files with 567 additions and 212 deletions
Download patch file Download diff file Expand all files Collapse all files

15
src/drawables/shapes/circle.ts
View file

@ -6,15 +6,13 @@ export class Circle extends Drawable {
public static descriptor: DrawableDescriptor = {
sdf: {
shader: `
uniform struct {
vec2 center;
float radius;
}[CIRCLE_COUNT] circles;
uniform vec2 circleCenters[CIRCLE_COUNT];
uniform vec2 circleRadii[CIRCLE_COUNT];
void circleMinDistance(inout float minDistance, inout float color) {
float myMinDistance = maxMinDistance;
for (int i = 0; i < CIRCLE_COUNT; i++) {
float dist = distance(circles[i].center, position) - circles[i].radius;
float dist = distance(circleCenters[i], position) - circleRadii[i];
myMinDistance = min(myMinDistance, dist);
}
minDistance = min(minDistance, myMinDistance);
@ -26,9 +24,12 @@ export class Circle extends Drawable {
`,
distanceFunctionName: 'circleMinDistance',
},
uniformName: 'circles',
propertyUniformMapping: {
center: 'circleCenters',
radius: 'circleRadii',
},
uniformCountMacroName: 'CIRCLE_COUNT',
shaderCombinationSteps: [0, 1, 2, 3, 16, 32],
shaderCombinationSteps: [0, 1, 2, 3, 8, 16],
empty: new Circle(vec2.fromValues(0, 0), 0),
};