CircleFieldRenderer::CircleFieldRenderer(const Manifold& m,
bool smooth,
VertexAttributeVector<Vec2d>& field,
float gamma): SimpleShaderRenderer(vss, fss)
{
GLint old_prog;
glGetIntegerv(GL_CURRENT_PROGRAM, &old_prog);
glUseProgram(prog);
GLuint scalar_attrib = glGetAttribLocation(prog, "circlepos");
// static float& gamma = CreateCVar("display.scalar_field_renderer.gamma",2.2f);
glUniform1fARB(glGetUniformLocationARB(prog, "gamma"), gamma);
glNewList(display_list,GL_COMPILE);
for(FaceIDIterator f = m.faces_begin(); f != m.faces_end(); ++f) {
if(!smooth)
glNormal3dv(normal(m, *f).get());
if(no_edges(m, *f)== 3)
glBegin(GL_TRIANGLES);
else
glBegin(GL_POLYGON);
for(Walker w = m.walker(*f); !w.full_circle(); w = w.circulate_face_ccw()) {
Vec3d n(normal(m, w.vertex()));
if(smooth)
glNormal3dv(n.get());
glVertexAttrib2dv(scalar_attrib, field[w.vertex()].get());
glVertex3dv(m.pos(w.vertex()).get());
}
glEnd();
}
glEndList();
glUseProgram(old_prog);
}
void ShaderProgram::setAttribute(GLint index, const Vector2d &v)
{
glVertexAttrib2dv(index, &(v.x));
}
void shader_gl3::attribute(const char* name, const double2* arg1) const {
A2E_CHECK_ATTRIBUTE_EXISTENCE(name);
A2E_CHECK_ATTRIBUTE_TYPE(name, GL_FLOAT_VEC2);
glVertexAttrib2dv(A2E_SHADER_GET_ATTRIBUTE_POSITION(name), (GLdouble*)arg1);
}
