func (emitter *particleEmitter) Buffer() {
data := emitter.Bytes()
if len(data) > 0 {
gl.BindBuffer(gl.ARRAY_BUFFER, emitter.VBO)
gl.BufferSubData(gl.ARRAY_BUFFER, 0, data)
}
}
func (shape *DynamicShape) Buffer(offset int) {
gl.BindBuffer(gl.ARRAY_BUFFER, shape.VBO)
data := shape.BytesOffset(offset)
if len(data) == 0 {
return
}
gl.BufferSubData(gl.ARRAY_BUFFER, offset*shape.Stride(), data)
}
func (shape *Line) Buffer(offset int) {
data := shape.BytesOffset(offset)
if len(data) == 0 {
return
}
gl.BindBuffer(gl.ARRAY_BUFFER, shape.VBO)
gl.BufferSubData(gl.ARRAY_BUFFER, lineEmittedVertices*offset*shape.Stride(), data)
}