diff options
Diffstat (limited to 'src/buffer/vertex/lattice_cell_buffer.cc')
| -rw-r--r-- | src/buffer/vertex/lattice_cell_buffer.cc | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/src/buffer/vertex/lattice_cell_buffer.cc b/src/buffer/vertex/lattice_cell_buffer.cc index c2b877b..ea4e103 100644 --- a/src/buffer/vertex/lattice_cell_buffer.cc +++ b/src/buffer/vertex/lattice_cell_buffer.cc @@ -1,19 +1,20 @@ #include "lattice_cell_buffer.h" -#include <fstream> +#include <vector> -LatticeCellBuffer::LatticeCellBuffer(GLuint nX, GLuint nY): - _data(9*nX*nY, GLfloat{1./9.}) { +LatticeCellBuffer::LatticeCellBuffer(GLuint nX, GLuint nY) { glGenVertexArrays(1, &_array); glGenBuffers(1, &_buffer); - const int inset = 0.4*nX; + std::vector<GLfloat> data(9*nX*nY, GLfloat{1./9.}); + const int insetX = 0.45*nX; + const int insetY = 0.45*nY; - for (int x = inset; x < nX-inset; x++) { - for (int y = inset; y < nY-inset; y++) { + for (int x = insetX; x < nX-insetX; x++) { + for (int y = insetY; y < nY-insetY; y++) { for ( int i = -1; i <= 1; ++i ) { for ( int j = -1; j <= 1; ++j ) { - _data[9*nX*y + 9*x + (i+1)*3 + j+1] = 1./64.; + data[9*nX*y + 9*x + (i+1)*3 + j+1] = 0.5; } } } @@ -23,8 +24,8 @@ LatticeCellBuffer::LatticeCellBuffer(GLuint nX, GLuint nY): glBindBuffer(GL_ARRAY_BUFFER, _buffer); glBufferData( GL_ARRAY_BUFFER, - _data.size() * sizeof(GLfloat), - _data.data(), + data.size() * sizeof(GLfloat), + data.data(), GL_DYNAMIC_DRAW ); |