1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
#include "fluid_cell_buffer.h"
FluidCellBuffer::FluidCellBuffer():
_data(3*128*128, GLfloat{}) {
glGenVertexArrays(1, &_array);
glGenBuffers(1, &_buffer);
glBindVertexArray(_array);
glBindBuffer(GL_ARRAY_BUFFER, _buffer);
glBufferData(
GL_ARRAY_BUFFER,
_data.size() * sizeof(GLfloat),
_data.data(),
GL_DYNAMIC_DRAW
);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
}
FluidCellBuffer::~FluidCellBuffer() {
glDeleteBuffers(1, &_buffer);
glDeleteVertexArrays(1, &_array);
}
GLuint FluidCellBuffer::getBuffer() const {
return _buffer;
}
void FluidCellBuffer::draw() const {
glBindVertexArray(_array);
glDrawArrays(GL_POINTS, 0, _data.size());
}
|