37 lines
1.3 KiB
C++
37 lines
1.3 KiB
C++
#include "opengl_mesh.hh"
|
|
#include "opengl_widget.hh"
|
|
|
|
#include <QOpenGLFunctions>
|
|
|
|
|
|
OpenGLMesh::OpenGLMesh(QVector<float> verts, QOpenGLTexture *tex, QOpenGLShaderProgram *program)
|
|
:tex(tex),
|
|
program(program) {
|
|
OpenGLWidget::instance->makeCurrent();
|
|
QOpenGLExtraFunctions *glf = OpenGLWidget::instance;
|
|
nverts = verts.size() / 8;
|
|
glf->glGenVertexArrays(1, &vao);
|
|
glf->glBindVertexArray(vao);
|
|
glf->glGenBuffers(1, &vbo);
|
|
glf->glBindBuffer(GL_ARRAY_BUFFER, vbo);
|
|
glf->glBufferData(GL_ARRAY_BUFFER, nverts * 8 * sizeof (float), verts.data(), GL_STATIC_DRAW);
|
|
glf->glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof (float), 0);
|
|
glf->glEnableVertexAttribArray(0);
|
|
glf->glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof (float), (void *) (3 * sizeof (float)));
|
|
glf->glEnableVertexAttribArray(1);
|
|
glf->glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof (float), (void *) (6 * sizeof (float)));
|
|
glf->glEnableVertexAttribArray(2);
|
|
OpenGLWidget::instance->doneCurrent();
|
|
}
|
|
|
|
|
|
void OpenGLMesh::draw(QOpenGLExtraFunctions *f, const QMatrix4x4 &mat) const {
|
|
program->bind();
|
|
program->setUniformValue("model", mat);
|
|
f->glBindVertexArray(vao);
|
|
if (tex) tex->bind();
|
|
f->glDrawArrays(GL_TRIANGLES, 0, nverts);
|
|
if (tex) tex->release();
|
|
f->glBindVertexArray(0);
|
|
}
|