mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-20 05:12:18 +02:00
32 lines
1002 B
Go
32 lines
1002 B
Go
// Copyright 2020 The Ebiten Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// +build ignore
|
|
|
|
package main
|
|
|
|
var Time float
|
|
var Cursor vec2
|
|
var ScreenSize vec2
|
|
|
|
func Fragment(position vec4, texCoord vec2, color vec4) vec4 {
|
|
center := ScreenSize / 2
|
|
amount := normalize(center-Cursor).x / 100
|
|
var clr vec3
|
|
clr.r = texture2At(vec2(texCoord.x+amount, texCoord.y)).r
|
|
clr.g = texture2At(texCoord).g
|
|
clr.b = texture2At(vec2(texCoord.x-amount, texCoord.y)).b
|
|
return vec4(clr, 1.0)
|
|
}
|