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CGWorkView.cpp
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CGWorkView.cpp
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// CGWorkView.cpp : implementation of the CCGWorkView class
//
#include "stdafx.h"
#include "CGWork.h"
#include <limits>
#include "CGWorkDoc.h"
#include "CGWorkView.h"
#include <iostream>
#include <functional>
#include <string>
using std::cout;
using std::endl;
#include "MaterialDlg.h"
#include "LightDialog.h"
#include <algorithm>
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#include "PngWrapper.h"
#include "iritSkel.h"
#include "MouseSensetiveDialog.h"
#include "FileRenderDlg.h"
#include "mat4.h"
#include "ColorSelectionDialog.h"
#include "PrespectiveControlDialog.h"
#include "OtherOptionsDialog.h"
#include <math.h>
#include "line.h"
#include <unordered_map>
#include <vector>
// For Status Bar access
#include "MainFrm.h"
extern std::vector<model> models;
extern IPFreeformConvStateStruct CGSkelFFCState;
// Use this macro to display text messages in the status bar.
#define STATUS_BAR_TEXT(str) (((CMainFrame*)GetParentFrame())->getStatusBar().SetWindowText(str))
#define IN_RANGE(x, y) ((1 <= x) && (x < (m_WindowWidth - 1)) && (1 <= y) && (y < (m_WindowHeight - 1)))
#define SCREEN_SPACE(x, y) (x + m_WindowWidth * y)
#define BGR(x) RGB(GetBValue(x), GetGValue(x), GetRValue(x));
#define SET_RGB(r,g,b) ((r)<<24|(g)<<16|(b)<<8|0)
#define SET_RGBA(r,g,b,a) ((r)<<24|(g)<<16|(b)<<8|a)
#define GET_R(x) (((x)&0xff000000)>>24)
#define GET_G(x) (((x)&0x00ff0000)>>16)
#define GET_B(x) (((x)&0x0000ff00)>>8)
#define GET_A(x) ((x)&0x000000ff)
/////////////////////////////////////////////////////////////////////////////
// CCGWorkView
IMPLEMENT_DYNCREATE(CCGWorkView, CView)
BEGIN_MESSAGE_MAP(CCGWorkView, CView)
//{{AFX_MSG_MAP(CCGWorkView)
ON_WM_ERASEBKGND()
ON_WM_CREATE()
ON_WM_DESTROY()
ON_WM_SIZE()
ON_MESSAGE(WM_MOUSEMOVE, OnMouseMovement)
ON_COMMAND(ID_FILE_LOAD, OnFileLoad)
ON_COMMAND(ID_WIREFRAME_COLOUR, OnWriteframeColor)
ON_COMMAND(ID_VIEW_ORTHOGRAPHIC, OnViewOrthographic)
ON_UPDATE_COMMAND_UI(ID_VIEW_ORTHOGRAPHIC, OnUpdateViewOrthographic)
ON_COMMAND(ID_VIEW_PERSPECTIVE, OnViewPerspective)
ON_UPDATE_COMMAND_UI(ID_VIEW_PERSPECTIVE, OnUpdateViewPerspective)
ON_COMMAND(ID_ACTION_ROTATE, OnActionRotate)
ON_UPDATE_COMMAND_UI(ID_ACTION_ROTATE, OnUpdateActionRotate)
ON_COMMAND(ID_ACTION_SCALE, OnActionScale)
ON_UPDATE_COMMAND_UI(ID_ACTION_SCALE, OnUpdateActionScale)
ON_COMMAND(ID_ACTION_TRANSLATE, OnActionTranslate)
ON_UPDATE_COMMAND_UI(ID_ACTION_TRANSLATE, OnUpdateActionTranslate)
ON_COMMAND(ID_ACTION_RESETVIEW, OnActionResetView)
ON_COMMAND(ID_ACTION_CLEARALL, OnActionClearAll)
ON_COMMAND(ID_AXIS_X, OnAxisX)
ON_UPDATE_COMMAND_UI(ID_AXIS_X, OnUpdateAxisX)
ON_COMMAND(ID_AXIS_Y, OnAxisY)
ON_UPDATE_COMMAND_UI(ID_AXIS_Y, OnUpdateAxisY)
ON_COMMAND(ID_AXIS_Z, OnAxisZ)
ON_UPDATE_COMMAND_UI(ID_AXIS_Z, OnUpdateAxisZ)
ON_COMMAND(ID_AXIS_XY, OnAxisXY)
ON_UPDATE_COMMAND_UI(ID_AXIS_XY, OnUpdateAxisXY)
ON_COMMAND(ID_BOUNDBOX, OnBoundBox)
ON_UPDATE_COMMAND_UI(ID_BOUNDBOX, OnUpdateBoundBox)
ON_COMMAND(ID_LIGHT_SHADING_FLAT, OnLightShadingFlat)
ON_UPDATE_COMMAND_UI(ID_LIGHT_SHADING_FLAT, OnUpdateLightShadingFlat)
ON_COMMAND(ID_LIGHT_SHADING_GOURAUD, OnLightShadingGouraud)
ON_UPDATE_COMMAND_UI(ID_LIGHT_SHADING_GOURAUD, OnUpdateLightShadingGouraud)
ON_COMMAND(ID_LIGHT_CONSTANTS, OnLightConstants)
ON_COMMAND(ID_BUTTON_TRANS_TOGGLE, OnActionToggleView)
ON_COMMAND(ID_OPTIONS_MOUSESENSITIVITY, OnOptionMouseSensetivity)
ON_COMMAND(ID_OPTIONS_PERSPECTIVECONTROL, OnOptionPrespectiveControl)
ON_COMMAND(ID_OPTIONS_OTHEROPTIONS, OnOptionOthers)
ON_UPDATE_COMMAND_UI(ID_BUTTON_TRANS_TOGGLE, OnUpdateActionToggleView)
//}}AFX_MSG_MAP
ON_COMMAND(ID_POLYGON_GIVEN, &CCGWorkView::OnPolygonGiven)
ON_COMMAND(ID_POLYGON_CALCULATED, &CCGWorkView::OnPolygonCalculated)
ON_UPDATE_COMMAND_UI(ID_POLYGON_CALCULATED, &CCGWorkView::OnUpdatePolygonCalculated)
ON_UPDATE_COMMAND_UI(ID_POLYGON_GIVEN, &CCGWorkView::OnUpdatePolygonGiven)
ON_COMMAND(ID_VERTEX_GIVEN, &CCGWorkView::OnVertexGiven)
ON_UPDATE_COMMAND_UI(ID_VERTEX_GIVEN, &CCGWorkView::OnUpdateVertexGiven)
ON_COMMAND(ID_VERTEX_CALCULATED, &CCGWorkView::OnVertexCalculated)
ON_UPDATE_COMMAND_UI(ID_VERTEX_CALCULATED, &CCGWorkView::OnUpdateVertexCalculated)
ON_COMMAND(ID_VIEW_WIREFRAME, &CCGWorkView::OnViewWireframe)
ON_UPDATE_COMMAND_UI(ID_VIEW_WIREFRAME, &CCGWorkView::OnUpdateViewWireframe)
ON_UPDATE_COMMAND_UI(ID_VIEW_SOLID, &CCGWorkView::OnUpdateViewSolid)
ON_COMMAND(ID_VIEW_SOLID, &CCGWorkView::OnViewSolid)
ON_COMMAND(ID_VIEW_Z, &CCGWorkView::OnViewZ)
ON_UPDATE_COMMAND_UI(ID_VIEW_Z, &CCGWorkView::OnUpdateViewZ)
ON_COMMAND(ID_LIGHT_SHADING_PHONg, &CCGWorkView::OnLightShadingPhong)
ON_UPDATE_COMMAND_UI(ID_LIGHT_SHADING_PHONg, &CCGWorkView::OnUpdateLightShadingPhong)
ON_COMMAND(ID_RENDER_TOFILE, &CCGWorkView::OnRenderTofile)
ON_UPDATE_COMMAND_UI(ID_RENDER_TOFILE, &CCGWorkView::OnUpdateRenderTofile)
ON_UPDATE_COMMAND_UI(ID_RENDER_TOSCREEN, &CCGWorkView::OnUpdateRenderToscreen)
ON_COMMAND(ID_RENDER_TOSCREEN, &CCGWorkView::OnRenderToscreen)
ON_COMMAND(ID_BACKGROUND_SETIMAGE, &CCGWorkView::OnBackgroundSetimage)
ON_COMMAND(ID_BACKGROUND_ACTIVE, &CCGWorkView::OnBackgroundActive)
ON_UPDATE_COMMAND_UI(ID_BACKGROUND_ACTIVE, &CCGWorkView::OnUpdateBackgroundActive)
ON_COMMAND(ID_BACKGROUND_REPEAT, &CCGWorkView::OnBackgroundRepeat)
ON_UPDATE_COMMAND_UI(ID_BACKGROUND_REPEAT, &CCGWorkView::OnUpdateBackgroundRepeat)
ON_COMMAND(ID_BACKGROUND_STRETCH, &CCGWorkView::OnBackgroundStretch)
ON_UPDATE_COMMAND_UI(ID_BACKGROUND_STRETCH, &CCGWorkView::OnUpdateBackgroundStretch)
ON_COMMAND(ID_OPTIONS_BACKFACECULLING, &CCGWorkView::OnOptionsBackfaceculling)
ON_UPDATE_COMMAND_UI(ID_OPTIONS_BACKFACECULLING, &CCGWorkView::OnUpdateOptionsBackfaceculling)
ON_COMMAND(ID_OPTIONS_NORMALINVERSE, &CCGWorkView::OnOptionsNormalinverse)
ON_UPDATE_COMMAND_UI(ID_OPTIONS_NORMALINVERSE, &CCGWorkView::OnUpdateOptionsNormalinverse)
ON_UPDATE_COMMAND_UI(ID_OPTIONS_OVERRIDEGIVENNORMAL, &CCGWorkView::OnUpdateOptionsOverridegivennormal)
ON_COMMAND(ID_OPTIONS_OVERRIDEGIVENNORMAL, &CCGWorkView::OnOptionsOverridegivennormal)
ON_COMMAND(ID_OPTIONS_ADDSILHOUETTE, &CCGWorkView::OnOptionsAddsilhouette)
ON_UPDATE_COMMAND_UI(ID_OPTIONS_ADDSILHOUETTE, &CCGWorkView::OnUpdateOptionsAddsilhouette)
ON_COMMAND(ID_LIGHT_LIGHT1VIEW, &CCGWorkView::OnLightLight1pov)
ON_UPDATE_COMMAND_UI(ID_LIGHT_LIGHT1VIEW, &CCGWorkView::OnUpdateLightLight1pov)
ON_COMMAND(ID_LIGHT1POV_Z, &CCGWorkView::OnLight1povZ)
ON_COMMAND(ID_LIGHT1POV_Y, &CCGWorkView::OnLight1povY)
ON_COMMAND(ID_LIGHT1POV_X, &CCGWorkView::OnLight1povX)
ON_COMMAND(ID_LIGHT1POV_NEG_X, &CCGWorkView::OnLight1povNegX)
ON_COMMAND(ID_LIGHT1POV_NEG_Y, &CCGWorkView::OnLight1povNegY)
ON_COMMAND(ID_LIGHT1POV_NEG_Z, &CCGWorkView::OnLight1povNegZ)
END_MESSAGE_MAP()
// A patch to fix GLaux disappearance from VS2005 to VS2008
void auxSolidCone(GLdouble radius, GLdouble height) {
GLUquadric *quad = gluNewQuadric();
gluQuadricDrawStyle(quad, GLU_FILL);
gluCylinder(quad, radius, 0.0, height, 20, 20);
gluDeleteQuadric(quad);
}
/////////////////////////////////////////////////////////////////////////////
// CCGWorkView construction/destruction
mat4 m_cur_transform;
CCGWorkView::CCGWorkView()
{
// Set default values
m_nAxis = ID_AXIS_X;
m_nAction = ID_ACTION_ROTATE;
m_nView = ID_VIEW_ORTHOGRAPHIC;
m_screen = NULL;
z_buffer = NULL;
polygon_normal = NULL;
m_object_space_trans = false;
m_bound_box = false;
m_mouse_sensetivity = 1;
CGSkelFFCState.FineNess = 2;
m_bIsPerspective = false;
m_tarnsform[0][0] = 1;
m_tarnsform[1][1] = 1;
m_tarnsform[2][2] = 1;
m_tarnsform[3][3] = 1;
m_presepctive_d = 2;
m_pic_name = "Default Name.png";
m_pngHandle.SetFileName(m_pic_name.c_str());
m_active_background = false;
m_valid_background = false;
m_silhouette = false;
m_back_face_culling = false;
m_silhouette_thickness = 0.01;
m_speculr_n = 2;
// initilize the cameras' position and direction in the view space
// used later
m_camera_pos = vec4(0, 0, -1, 1);
m_camera_at = vec4(0, 0, 0, 1);
m_camera_up = vec4(0, -1, 0, 1);
m_color_wireframe = RGB(0, 0, 0);
m_background_color = RGB(255, 255, 255);
m_boundbox_color = RGB(0, 0, 0);
m_polygon_norm_color = RGB(0, 0, 0);
m_silhouette_color = RGB(0, 0, 255);
m_vertex_norm_color = RGB(0, 0, 0);
m_nLightShading = ID_LIGHT_SHADING_FLAT;
render_type = ID_VIEW_SOLID;
m_render_target = ID_RENDER_TOSCREEN;
m_background_type = ID_BACKGROUND_REPEAT;
m_light_view = false;
m_nLightView = ID_LIGHT1POV_Z;
//init the coesffiecents of the lights
m_ambient_k = 0.3;
m_diffuse_k = 0.7;
m_speculr_k = 0.7;
m_lMaterialAmbient = 0.2;
m_lMaterialDiffuse = 0.8;
m_lMaterialSpecular = 1.0;
m_nMaterialCosineFactor = 32;
for (int l = LIGHT_ID_1; l < MAX_LIGHT; l++){
m_lights[LIGHT_ID_1].enabled = false;
}
//init the first light to be enabled
m_lights[LIGHT_ID_1].enabled = true;
m_lights[LIGHT_ID_1].type = LIGHT_TYPE_POINT;
m_lights[LIGHT_ID_1].posX = 0;
m_lights[LIGHT_ID_1].posY = 0;
m_lights[LIGHT_ID_1].posZ = -2;
m_ambientLight.colorR = 30;
m_ambientLight.colorG = 30;
m_ambientLight.colorB = 30;
}
CCGWorkView::~CCGWorkView()
{
}
/////////////////////////////////////////////////////////////////////////////
// CCGWorkView diagnostics
#ifdef _DEBUG
void CCGWorkView::AssertValid() const
{
CView::AssertValid();
}
void CCGWorkView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CCGWorkDoc* CCGWorkView::GetDocument() // non-debug version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CCGWorkDoc)));
return (CCGWorkDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CCGWorkView Window Creation - Linkage of windows to CGWork
BOOL CCGWorkView::PreCreateWindow(CREATESTRUCT& cs)
{
// TODO: Modify the Window class or styles here by modifying
// the CREATESTRUCT cs
// An CGWork window must be created with the following
// flags and must NOT include CS_PARENTDC for the
// class style.
cs.style |= WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
return CView::PreCreateWindow(cs);
}
int CCGWorkView::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CView::OnCreate(lpCreateStruct) == -1)
return -1;
InitializeCGWork();
return 0;
}
// This method initialized the CGWork system.
BOOL CCGWorkView::InitializeCGWork()
{
m_pDC = new CClientDC(this);
m_hDC = CreateCompatibleDC(m_pDC->GetSafeHdc());
if (NULL == m_hDC) { // failure to get DC
::AfxMessageBox(CString("Couldn't get a valid DC."));
return FALSE;
}
if (NULL == m_pDC) { // failure to get DC
::AfxMessageBox(CString("Couldn't get a valid DC."));
return FALSE;
}
return TRUE;
}
/////////////////////////////////////////////////////////////////////////////
// CCGWorkView message handlers
void CCGWorkView::OnSize(UINT nType, int cx, int cy)
{
CView::OnSize(nType, cx, cy);
if (0 >= cx || 0 >= cy) {
return;
}
// save the width and height of the current window
m_WindowWidth = cx;
m_WindowHeight = cy;
m_OriginalWindowWidth = m_WindowWidth;
m_OriginalWindowHeight = m_WindowHeight;
// compute the aspect ratio
// this will keep all dimension scales equal
m_AspectRatio = (GLdouble)m_WindowWidth / (GLdouble)m_WindowHeight;
}
BOOL CCGWorkView::SetupViewingFrustum(void)
{
return TRUE;
}
// This viewing projection gives us a constant aspect ration. This is done by
// increasing the corresponding size of the ortho cube.
BOOL CCGWorkView::SetupViewingOrthoConstAspect(void)
{
return TRUE;
}
BOOL CCGWorkView::OnEraseBkgnd(CDC* pDC)
{
// Windows will clear the window with the background color every time your window
// is redrawn, and then CGWork will clear the viewport with its own background color.
// return CView::OnEraseBkgnd(pDC);
return true;
}
/////////////////////////////////////////////////////////////////////////////
// CCGWorkView drawing
/////////////////////////////////////////////////////////////////////////////
void CCGWorkView::OnDraw(CDC* pDC)
{
CCGWorkDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
delete m_screen;
m_screen = (COLORREF*)calloc(m_WindowWidth * m_WindowHeight, sizeof(COLORREF));
z_buffer = (double*)calloc(m_WindowWidth * m_WindowHeight, sizeof(double));
mat4 screen_space_scale;
mat4 screen_space_translate;
// set the screen scaling transformation
int min_axis = min(m_WindowHeight, m_WindowWidth);
screen_space_scale[0][0] = (double)min_axis*0.6;
screen_space_scale[1][1] = (double)min_axis*0.6;
screen_space_scale[2][2] = (double)min_axis*0.6;
screen_space_scale[3][3] = 1;
m_screen_space_scale = screen_space_scale;
// set the screen translation transformation
screen_space_translate[0][0] = 1;
screen_space_translate[3][0] = 0.5 * m_WindowWidth;
screen_space_translate[1][1] = 1;
screen_space_translate[3][1] = 0.5 * m_WindowHeight;
screen_space_translate[2][2] = 1;
screen_space_translate[3][3] = 1;
m_screen_space_translate = screen_space_translate;
// set the screens prespective transformation
mat4 reset;
m_prespective_trans = reset;
double screen_space_d = (double)m_presepctive_d * 0.6;
double screen_space_alpha = 0.6 * screen_space_d;
m_prespective_trans[0][0] = 1;
m_prespective_trans[1][1] = 1;
m_prespective_trans[2][2] = screen_space_d / (screen_space_d - screen_space_alpha);
m_prespective_trans[2][3] = 1 / screen_space_d;
m_prespective_trans[3][2] = -screen_space_alpha * screen_space_d / (screen_space_d - screen_space_alpha);
m_screen_space_trans = screen_space_scale * screen_space_translate;
RenderScene();
if (!pDoc)
return;
}
/////////////////////////////////////////////////////////////////////////////
// CCGWorkView CGWork Finishing and clearing...
void CCGWorkView::OnDestroy()
{
CView::OnDestroy();
if (m_screen){
delete m_screen;
}
if (z_buffer){
delete z_buffer;
}
if (m_hDC){
DeleteDC(m_hDC);
}
// delete the DC
if (m_pDC) {
delete m_pDC;
}
}
/////////////////////////////////////////////////////////////////////////////
// User Defined Functions
bool past_pressed;
LRESULT CCGWorkView::OnMouseMovement(WPARAM wparam, LPARAM lparam){
int xPos = GET_X_LPARAM(lparam);
int yPos = GET_Y_LPARAM(lparam);
if (wparam == MK_RBUTTON){
std::string str(("X - " + std::to_string(xPos) + "\n" + "Y - " + std::to_string(yPos)));
CString notice(str.c_str());
this->MessageBox(notice);
}
if (wparam == MK_LBUTTON && past_pressed)
{
mat4 temp_transform;
mat4 temp_transform_xy;
// x mouse movement params
double diff_x = (xPos - m_mouse_xpos);
double teta_x = m_mouse_sensetivity * 10 * asin((double)diff_x / m_WindowWidth);
double sinx = sin(teta_x);
double cosx = cos(teta_x); // sin(x) ~= x movements are very small
// x mouse movement params
double diff_y = (yPos - m_mouse_ypos);
double teta_y = m_mouse_sensetivity * 10 * asin((double)diff_y / m_WindowHeight); //TODO scales...
double siny = sin(teta_y);
double cosy = cos(teta_y); // sin(y) ~= y movements are very small
if (m_nAction == ID_ACTION_ROTATE){
if (m_nAxis == ID_AXIS_X){
temp_transform[0][0] = 1;
temp_transform[1][1] = cosy;
temp_transform[1][2] = -siny;
temp_transform[2][1] = siny;
temp_transform[2][2] = cosy;
temp_transform[3][3] = 1;
}
if (m_nAxis == ID_AXIS_Y){
temp_transform[0][0] = cosx;
temp_transform[0][2] = -sinx;
temp_transform[1][1] = 1;
temp_transform[2][0] = sinx;
temp_transform[2][2] = cosx;
temp_transform[3][3] = 1;
}
if (m_nAxis == ID_AXIS_Z){
temp_transform[0][0] = cosx;
temp_transform[0][1] = -sinx;
temp_transform[1][0] = sinx;
temp_transform[1][1] = cosx;
temp_transform[2][2] = 1;
temp_transform[3][3] = 1;
}
if (m_nAxis == ID_AXIS_XY){
temp_transform[0][0] = 1;
temp_transform[1][1] = cosy;
temp_transform[1][2] = siny;
temp_transform[2][1] = -siny;
temp_transform[2][2] = cosy;
temp_transform[3][3] = 1;
temp_transform_xy[0][0] = cosx;
temp_transform_xy[0][2] = sinx;
temp_transform_xy[1][1] = 1;
temp_transform_xy[2][0] = -sinx;
temp_transform_xy[2][2] = cosx;
temp_transform_xy[3][3] = 1;
temp_transform = temp_transform_xy * temp_transform;
}
}
else if (m_nAction == ID_ACTION_TRANSLATE){
if (m_nAxis == ID_AXIS_X){
temp_transform[0][0] = 1;
temp_transform[3][0] = m_mouse_sensetivity * (double)diff_x / m_WindowWidth;
temp_transform[1][1] = 1;
temp_transform[2][2] = 1;
temp_transform[3][3] = 1;
}
if (m_nAxis == ID_AXIS_Y){
temp_transform[0][0] = 1;
temp_transform[1][1] = 1;
temp_transform[3][1] = m_mouse_sensetivity * (double)diff_y / m_WindowHeight;
temp_transform[2][2] = 1;
temp_transform[3][3] = 1;
}
if (m_nAxis == ID_AXIS_Z){
temp_transform[0][0] = 1;
temp_transform[1][1] = 1;
temp_transform[2][2] = 1;
temp_transform[3][2] = m_mouse_sensetivity * (double)diff_x / m_WindowWidth;
temp_transform[3][3] = 1;
}
if (m_nAxis == ID_AXIS_XY){
temp_transform[0][0] = 1;
temp_transform[3][0] = m_mouse_sensetivity * (double)diff_x / m_WindowWidth;
temp_transform[1][1] = 1;
temp_transform[3][1] = m_mouse_sensetivity * (double)diff_y / m_WindowHeight;
temp_transform[2][2] = 1;
temp_transform[3][3] = 1;
}
}
else if (m_nAction == ID_ACTION_SCALE){
if (m_nAxis == ID_AXIS_X){
temp_transform[0][0] = 1 + m_mouse_sensetivity * (double)diff_x / m_WindowWidth;
temp_transform[1][1] = 1;
temp_transform[2][2] = 1;
temp_transform[3][3] = 1;
}
if (m_nAxis == ID_AXIS_Y){
temp_transform[0][0] = 1;
temp_transform[1][1] = 1 + m_mouse_sensetivity * (double)diff_y / m_WindowHeight;
temp_transform[2][2] = 1;
temp_transform[3][3] = 1;
}
if (m_nAxis == ID_AXIS_Z){
temp_transform[0][0] = 1;
temp_transform[1][1] = 1;
temp_transform[2][2] = 1 + m_mouse_sensetivity * (double)diff_x / m_WindowWidth;
temp_transform[3][3] = 1;
}
if (m_nAxis == ID_AXIS_XY){
temp_transform[0][0] = 1 + m_mouse_sensetivity * (double)diff_x / m_WindowWidth;
temp_transform[1][1] = 1 + m_mouse_sensetivity * (double)diff_y / m_WindowHeight;
temp_transform[2][2] = 1;
temp_transform[3][3] = 1;
}
}
else {
temp_transform[0][0] = 1;
temp_transform[1][1] = 1;
temp_transform[2][2] = 1;
temp_transform[3][3] = 1;
}
m_tarnsform = temp_transform;
for (unsigned int m = 0; m < models.size(); m++){
if (models[m].active_model){
if (m_object_space_trans)
models[m].obj_coord_trans = m_tarnsform * models[m].obj_coord_trans;
else
models[m].camera_trans = models[m].camera_trans * m_tarnsform;
}
}
RenderScene();
m_mouse_xpos = xPos;
m_mouse_ypos = yPos;
}
else if (wparam == MK_LBUTTON){
past_pressed = true;
m_mouse_xpos = xPos;
m_mouse_ypos = yPos;
}
else{
past_pressed = false;
}
return 0;
};
static double Depth(std::vector<vec4> q, int x, int y){
vec4 p1, p2;
std::vector<vec4> points;
unsigned int i;
if (x == static_cast<int>(p1.x / p1.p) && y == static_cast<int>(p1.y / p1.p)) return p1.z / p1.p;
if (x == static_cast<int>(p2.x / p2.p) && y == static_cast<int>(p2.y / p2.p)) return p2.z / p2.p;
for (i = 0; i < q.size(); i++){
p1 = q[i];
p2 = q[(i + 1) % q.size()];
if (y == static_cast<int>(p1.y / p1.p)) points.push_back(vec4(p1.x / p1.p, y, p1.z / p1.p, 1));
if (y == static_cast<int>(p2.y / p2.p)) points.push_back(vec4(p2.x / p2.p, y, p2.z / p2.p, 1));
double y1 = max(p1.y / p1.p, p2.y / p2.p);
double y2 = min(p1.y / p1.p, p2.y / p2.p);
if (y < y1 && y > y2){
if (x == static_cast<int> (p1.x / p1.p))
return p1.z / p1.p;
if (x == static_cast<int>(p2.x / p1.p))
return p2.z / p2.p;
double m = (p1.x / p1.p - p2.x / p2.p) / (p1.y / p1.p - p2.y / p2.p);
double x1 = m*y - m*(p1.y / p1.p) + (p1.x / p1.p);
double d1 = sqrt(pow(p1.y / p1.p - y, 2) + pow(p1.x / p1.p - x1, 2));
double d = sqrt(pow(p1.y / p1.p - p2.y / p2.p, 2) + pow(p1.x / p1.p - p2.x / p2.p, 2));
double z = (p2.z / p2.p)*(d1 / d) + (1 - d1 / d)*(p1.z / p1.p);
//double z = LinePointDepth(p1, p2, x, y);
if (x == static_cast<int>(x1))
return z;
points.push_back(vec4(x1, y, z, 1));
}
}
for (i = 0; i < points.size(); i++){
p1 = points[i];
p2 = points[(i + 1) % points.size()];
double x1 = max(p1.x, p2.x);
double x2 = min(p1.x, p2.x);
if (x1 == x2) return p1.z / p1.p;
if (x < static_cast<int>(x1) && x > static_cast<int>(x2)){
double d1 = p1.x -x;
double d = p1.x - p2.x;
double z = p1.z*(1- (d1 / d)) + (d1 / d)*p2.z;
return z;
}
}
return p2.z; //cheating
}
double CCGWorkView::LinePointDepth(vec4 &p1, vec4 &p2, int x, int y){
double p2_x = static_cast<int>(p2.x / p2.p);
double p2_y = static_cast<int>(p2.y / p2.p);
double p2_z = (p2.z / p2.p);
double p1_x = static_cast<int>(p1.x / p1.p);
double p1_y = static_cast<int>(p1.y / p1.p);
double p1_z = (p1.z / p1.p);
double z_delta = p1_z - p2_z;
double y_delta = p1_y - p2_y;
double x_delta = p1_x - p2_x;
double z;
if (y_delta != 0 && (abs(y_delta) >= abs(x_delta))) // line does not change in y
z = (z_delta / y_delta) * (y - p2_y) + p2_z;
else if (x_delta != 0) // line does not change in x
z = (z_delta / x_delta) * (x - p2_x) + p2_z;
else // line does not change in y and x, meaning we only draw p1 on screen
z = min(p1_z, p2_z);
return z;
}
static vec4 LinePointNormal(vec4 &p1, vec4 &p2, vec4 p1_normal, vec4 p2_normal, int x, int y){
double p2_x = static_cast<int>(p2.x / p2.p);
double p2_y = static_cast<int>(p2.y / p2.p);
double p2_z = (p2.z / p2.p);
double p1_x = static_cast<int>(p1.x / p1.p);
double p1_y = static_cast<int>(p1.y / p1.p);
double p1_z = (p1.z / p1.p);
vec4 n_delta = p1_normal - p2_normal;
double y_delta = p1_y - p2_y;
double x_delta = p1_x - p2_x;
vec4 n;
if (y_delta != 0 && (abs(y_delta) >= abs(x_delta))) // line does not change in y
n = (n_delta / y_delta) * (y - p2_y) + p2_normal;
else if (x_delta != 0) // line does not change in x
n = (n_delta / x_delta) * (x - p2_x) + p2_normal;
else // line does not change in y and x, meaning we only draw p1 on screen
n = (p1_z < p2_z) ? p1_normal : p2_normal;
return n;
}
static COLORREF LinePointLight(vec4 &p1, vec4 &p2, COLORREF p1_color, COLORREF p2_color, double x, double y){
double p2_x = static_cast<int>(p2.x / p2.p);
double p2_y = static_cast<int>(p2.y / p2.p);
double p1_x = static_cast<int>(p1.x / p1.p);
double p1_y = static_cast<int>(p1.y / p1.p);
double p1_z = static_cast<int>(p1.z / p1.p);
double p2_z = static_cast<int>(p2.z / p2.p);
int c_red_delta = GetRValue(p1_color) - GetRValue(p2_color);
int c_grn_delta = GetGValue(p1_color) - GetGValue(p2_color);
int c_blu_delta = GetBValue(p1_color) - GetBValue(p2_color);
double y_delta = p1_y - p2_y;
double x_delta = p1_x - p2_x;
double z_delta = p1_z - p2_z;
double cred;
double cgrn;
double cblu;
COLORREF c;
int p1r = GetRValue(p1_color);
int p1g = GetGValue(p1_color);
int p1b = GetBValue(p1_color);
int p2r = GetRValue(p2_color);
int p2g = GetGValue(p2_color);
int p2b = GetBValue(p2_color);
bool use_y = y_delta < x_delta;
if (y_delta != 0 && (abs(y_delta) >= abs(x_delta))){ // line does not change in x
cred = ((double)c_red_delta / y_delta) * (y - p2_y) + GetRValue(p2_color);
cgrn = ((double)c_grn_delta / y_delta) * (y - p2_y) + GetGValue(p2_color);
cblu = ((double)c_blu_delta / y_delta) * (y - p2_y) + GetBValue(p2_color);
}
else if (x_delta != 0){ // line does not change in y
cred = ((double)c_red_delta / x_delta) * (x - p2_x) + GetRValue(p2_color);
cgrn = ((double)c_grn_delta / x_delta) * (x - p2_x) + GetGValue(p2_color);
cblu = ((double)c_blu_delta / x_delta) * (x - p2_x) + GetBValue(p2_color);
}
else { // line does not change in y and x, meaning we only draw p1 on screen
cred = (p1_z < p2_z) ? GetRValue(p1_color) : GetRValue(p2_color);
cgrn = (p1_z < p2_z) ? GetGValue(p1_color) : GetGValue(p2_color);
cblu = (p1_z < p2_z) ? GetBValue(p1_color) : GetBValue(p2_color);
}
c = RGB(static_cast<int>(max(min(cred, 255), 0)),
static_cast<int>(max(min(cgrn, 255), 0)),
static_cast<int>(max(min(cblu, 255), 0)));
int c2r = static_cast<int>(max(min(cred, 255), 0));
int c2g = static_cast<int>(max(min(cgrn, 255), 0));
int c2b = static_cast<int>(max(min(cblu, 255), 0));
if (cred < 0 || cgrn < 0 || cblu < 0)
bool shit = true;
return c;
}
void CCGWorkView::DrawLine(double* z_arr, COLORREF *arr, vec4 &p1, vec4 &p2, COLORREF p1_color, vec4* p1_normal, COLORREF p2_color, vec4* p2_normal, std::unordered_map<int, std::vector<x_z_c_n_point>>* x_y){
// if the line is beyond the screen space, dont bother drawing it
if (!(((p1.z > m_presepctive_d && p2.z > m_presepctive_d) && !(p1.x <= 0 && p2.x <= 0) && !(p1.y <= 0 && p2.y <= 0))
&& (m_nView == ID_VIEW_PERSPECTIVE) ||
(m_nView == ID_VIEW_ORTHOGRAPHIC)))
return;
int xy = (x_y != NULL);
// algorithm vars
int x1, x2, y1, y2, dx, dy, d;
int north_er, north_west_er, west_er, south_west_er, south_er, south_east_er, east_er, north_east_er;
// draw location variables
int x, y;
// midpoint algorithm
double p1_x = p1.x / p1.p;
double p2_x = p2.x / p2.p;
double p1_y = p1.y / p1.p;
double p2_y = p2.y / p2.p;
double p1_z = p1.z / p1.p;
double p2_z = p2.z / p2.p;
x1 = static_cast<int>(min(p1_x, p2_x));
x2 = static_cast<int>(max(p1_x, p2_x));
if (x1 != x2){
y1 = static_cast<int>(p1_x < p2_x ? p1_y : p2_y);
y2 = static_cast<int>(p1_x < p2_x ? p2_y : p1_y);
}
else{
y1 = static_cast<int>(min(p1_y, p2_y));
y2 = static_cast<int>(max(p1_y, p2_y));
}
dx = x2 - x1;
dy = y2 - y1;
x = x1;
y = y1;
east_er = 2 * dy;
north_east_er = 2 * (dy - dx);
north_er = -2 * dx;
north_west_er = -2 * (dy - dx);
west_er = -2 * dy;
south_west_er = 2 * dx - 2 * dy;
south_er = 2 * dx;
south_east_er = 2 * dx + 2 * dy;
double z;
x_z_c_n_point xzcn_point;
std::vector<COLORREF> color_debug;
bool inc = false;
bool dec = false;
bool stat = false;
COLORREF c;
vec4 n = *p1_normal;
z = LinePointDepth(p1, p2, x, y);
if (m_nLightShading == ID_LIGHT_SHADING_PHONg)
n = LinePointNormal(p1, p2, *p1_normal, *p2_normal, x, y);
if (m_nLightShading == ID_LIGHT_SHADING_GOURAUD)
c = LinePointLight(p1, p2, p1_color, p2_color ,x, y);
else
c = ApplyLight(p1_color, n, vec4(x, y, z, 1));
if (xy) {
xzcn_point.x = x;
xzcn_point.z = z;
xzcn_point.c = c;
xzcn_point.n = n;
(*x_y)[y].push_back(xzcn_point);
}
else if (IN_RANGE(x, y)){
if (z < z_arr[SCREEN_SPACE(x, y)]){
arr[SCREEN_SPACE(x, y)] = c;
z_arr[SCREEN_SPACE(x, y)] = z;
if (m_render_target == ID_RENDER_TOFILE){
m_pngHandle.SetValue(x, y, c);
}
}
}
// select the correct midpoint algorithm (direction and incline)
if (dx == 0){ // horizontal y line or line in z direction only
//move in positive y direction only
while (y < y2){
y = y + 1;
z = LinePointDepth(p1, p2, x, y);
if (m_nLightShading == ID_LIGHT_SHADING_PHONg)
n = LinePointNormal(p1, p2, *p1_normal, *p2_normal, x, y);
if (m_nLightShading == ID_LIGHT_SHADING_GOURAUD)
c = LinePointLight(p1, p2, p1_color, p2_color, x, y);
else
c = ApplyLight(p1_color, n, vec4(x, y, z, 1));
if (xy) {
xzcn_point.x = x;
xzcn_point.z = z;
xzcn_point.c = c;
xzcn_point.n = n;
(*x_y)[y].push_back(xzcn_point);
}
else if (IN_RANGE(x, y)){
if (z < z_arr[SCREEN_SPACE(x, y)]){
arr[SCREEN_SPACE(x, y)] = c;
z_arr[SCREEN_SPACE(x, y)] = z;
if (m_render_target == ID_RENDER_TOFILE){
m_pngHandle.SetValue(x, y, c);
}
}
}
}
return;
}
double incline = (double)dy / (double)dx;
if (incline > 1){
d = dy - 2 * dx; // try to move in positive y direction only
while (y < y2){
if (d > 0){
d = d + north_er;
y = y + 1;
}
else{
d = d + north_east_er;
x = x + 1;
y = y + 1;
}
z = LinePointDepth(p1, p2, x, y);
if (m_nLightShading == ID_LIGHT_SHADING_PHONg)
n = LinePointNormal(p1, p2, *p1_normal, *p2_normal, x, y);
if (m_nLightShading == ID_LIGHT_SHADING_GOURAUD)
c = LinePointLight(p1, p2, p1_color, p2_color, x, y);
else
c = ApplyLight(p1_color, n, vec4(x, y, z, 1));
if (xy) {
xzcn_point.x = x;
xzcn_point.z = z;
xzcn_point.c = c;
xzcn_point.n = n;
(*x_y)[y].push_back(xzcn_point);
}
else if (IN_RANGE(x, y)){
if (z < z_arr[SCREEN_SPACE(x, y)]){
arr[SCREEN_SPACE(x, y)] = c;
z_arr[SCREEN_SPACE(x, y)] = z;
if (m_render_target == ID_RENDER_TOFILE){
m_pngHandle.SetValue(x, y, c);
}
}
}
}
}
else if (0 < incline && incline <= 1)
{
d = 2 * dy - dx; // try to move in positive x direction only, possibly positive y
while (x < x2){
if (d < 0){
d = d + east_er;
x = x + 1;
}
else{
d = d + north_east_er;
x = x + 1;
y = y + 1;
}
z = LinePointDepth(p1, p2, x, y);
if (m_nLightShading == ID_LIGHT_SHADING_PHONg)
n = LinePointNormal(p1, p2, *p1_normal, *p2_normal, x, y);