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나는 그것의 그래픽 유물이라고하지만,이 표시되면 확실하지 않다 : 당신은 장소를 벗어난 검은 윤곽에 6 개 픽셀을 알 수 http://img835.imageshack.us/img835/9785/anomoly.pngOpenGL에서의 그래픽 인공물?
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내 응용 프로그램에 확대 할 수 있습니다 내가 렌더링 할 때 나는이 수행
렌더링 :
// Set an orthogonal projection matrix
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(GetCameraX() - ((float)controls.MainGlFrame.Dimensions.x) * scene[current.currentScene].camera.ScaleFactor
/2, GetCameraX() + ((float)controls.MainGlFrame.Dimensions.x) * scene[current.currentScene].camera.ScaleFactor/2,
GetCameraY() - ((float)controls.MainGlFrame.Dimensions.y) * scene[current.currentScene].camera.ScaleFactor/2,
GetCameraY() + ((float)controls.MainGlFrame.Dimensions.y) * scene[current.currentScene].camera.ScaleFactor/2,
-1.0f, 1.0f);
// Set the model matrix as the current matrix
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
hdc = BeginPaint(controls.MainGlContext.mhWnd,&ps);
//start OGL code
카메라 구조체는 다음과 같습니다
struct SceneCam {
double x;
double y;
double tempX;
double tempY;
double ScaleFactor;
};
감사
Render:
void CGlEngine::RenderShapes()
{
// Set an orthogonal projection matrix
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(GetCameraX() - ((float)controls.MainGlFrame.Dimensions.x) * scene[current.currentScene].camera.ScaleFactor
/2, GetCameraX() + ((float)controls.MainGlFrame.Dimensions.x) * scene[current.currentScene].camera.ScaleFactor/2,
GetCameraY() - ((float)controls.MainGlFrame.Dimensions.y) * scene[current.currentScene].camera.ScaleFactor/2,
GetCameraY() + ((float)controls.MainGlFrame.Dimensions.y) * scene[current.currentScene].camera.ScaleFactor/2,
-1.0f, 1.0f);
// Set the model matrix as the current matrix
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
hdc = BeginPaint(controls.MainGlContext.mhWnd,&ps);
//start OGL code
glClear(GL_COLOR_BUFFER_BIT);
for(unsigned int currentlayer = 0; currentlayer < scene[current.currentScene].layer.size(); ++currentlayer)
{
for(unsigned int i = 0; i < scene[current.currentScene].layer[currentlayer].Shapes.size(); i++)
{
//render shape here
scene[current.currentScene].layer[currentlayer].Shapes[i].Render();
}
}
for(int i = 0; i < TempBuffers.size(); ++i)
{
if(scene[current.currentScene].layer[TempBuffers[i].layer].Shapes[TempBuffers[i].shape].Contour[0].DrawingPoints.size() > 1)
{
glColor3f(0,0,0);
glBindBufferARB(GL_ARRAY_BUFFER_ARB,controls.MainGlFrame.BufferVBO);
glBufferDataARB(GL_ARRAY_BUFFER_ARB,sizeof(GLdouble) * scene[current.currentScene].layer[TempBuffers[i].layer].Shapes[TempBuffers[i].shape].Contour[0].DrawingPoints.size() * 2
,(GLdouble*)(&scene[current.currentScene].layer[TempBuffers[i].layer].Shapes[TempBuffers[i].shape].Contour[0].DrawingPoints[0]),GL_STATIC_COPY);
glEnableClientState(GL_VERTEX_ARRAY);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, controls.MainGlFrame.BufferVBO);
glVertexPointer(2, GL_DOUBLE, 0, (char *) NULL); // Set The Vertex Pointer To The Vertex Buffer
if(scene[current.currentScene].layer[TempBuffers[i].layer].Shapes[TempBuffers[i].shape].connected)
{
glDrawArrays(GL_LINE_LOOP, 0, scene[current.currentScene].layer[TempBuffers[i].layer].Shapes[TempBuffers[i].shape].Contour[0].DrawingPoints.size());
}
else
{
glDrawArrays(GL_LINE_STRIP, 0, scene[current.currentScene].layer[TempBuffers[i].layer].Shapes[TempBuffers[i].shape].Contour[0].DrawingPoints.size());
}
glColor3f(1,0.5,0.5);
//glDrawArrays(GL_POINTS, 0, layer[TempBuffers[i].layer].Shapes[TempBuffers[i].shape].Contour[0].DrawingPoints.size());
glDisableClientState(GL_VERTEX_ARRAY);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
}
/*
glColor3f(0,0,0);
glLineWidth(2);
*/
/*
if (ObjectBuffer.Contour[0].UserPoints.size() > 0)
{
glBegin(GL_LINES);
for(unsigned int i = 0; i < ObjectBuffer.Contour[0].DrawingPoints.size() - 1; ++i)
{
glVertex2d(ObjectBuffer.Contour[0].UserPoints[i].UserPoint.x,ObjectBuffer.Contour[0].UserPoints[i].UserPoint.y);
glVertex2d(ObjectBuffer.Contour[0].UserPoints[i + 1].UserPoint.x,ObjectBuffer.Contour[0].UserPoints[i + 1].UserPoint.y);
}
glEnd();
}
*/
//end OGL code
glFlush();
Sleep(1);
SwapBuffers(hdc);
EndPaint(controls.MainGlContext.mhWnd,&ps);
}
조정 :
void CGlFrame::resize(HWND mainWindow,CGlContext *context, float rightRemainder)
{
RECT clientRect;
GetClientRect(mainWindow,&clientRect);
if(!hasstarted)
{
context->killOGL();
context->init(framehWnd,
context->format);
hasstarted = true;
//Generate a VBO
glGenBuffersARB(1,&BufferVBO);
}
SetWindowPos(framehWnd,NULL,toolWidth,tabHeight,
(static_cast<int>(((clientRect.right - clientRect.left) - toolWidth) - rightRemainder)) + toolWidth,
(static_cast<int>((clientRect.bottom - clientRect.top) - tabHeight - paramHeight)) ,NULL);
int width;
int height;
RECT newwin;
GetClientRect(framehWnd,&newwin);
width = newwin.right - newwin.left;
height = newwin.bottom - newwin.top;
Dimensions.x = width;
Dimensions.y = height;
glViewport(0, 0, width, height);
glShadeModel(GL_SMOOTH);
glHint(GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST);
glEnable(GL_POLYGON_SMOOTH);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
//glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glEnable(GL_MULTISAMPLE_ARB);
glEnable(GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glClearColor(1.0f, 1.0f, 1.0f, 0.0f);
glLineWidth(2);
glPointSize(5);
}
모양 렌더링 :
void CGlShape::Render()
{
if(!render)
{
return;
}
glColor4f(MainShapeColor.r,MainShapeColor.g,MainShapeColor.b,MainShapeColor.a);
if(Gradient.active)
{
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,Gradient.TextureId);
}
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, ObjectVBOInt);
glVertexPointer(2, GL_FLOAT, 0, (char *) NULL); // Set The Vertex Pointer To The Vertex Buffer
glBindBufferARB(GL_ARRAY_BUFFER_ARB, TextureCoordsVBOInt);
glTexCoordPointer(2, GL_FLOAT, 0, (char *) NULL); // Set The Vertex Pointer To The Vertex Buffer
glDrawArrays(GL_TRIANGLES, 0, ObjectVBOCount);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
glDisable(GL_TEXTURE_2D);
for(int i = 0; i < Contour.size(); ++i)
{
glColor4f(Contour[i].Outline.OutlineColor.r,
Contour[i].Outline.OutlineColor.g,
Contour[i].Outline.OutlineColor.b,
Contour[i].Outline.OutlineColor.a);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, Contour[i].Outline.OutlineVBO);
glVertexPointer(2, GL_FLOAT, 0, (char *) NULL); // Set The Vertex Pointer To The Vertex Buffer
glDrawArrays(GL_TRIANGLES, 0, Contour[i].Outline.OutlineSize);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
glDisableClientState(GL_VERTEX_ARRAY);
}
편집
나는의 관리 0.00001의 gltranslation으로 윤곽선을 두 번 렌더링하면됩니다. 이 작동하지만 overdraw 원인, 나는 더 나은 솔루션을했다 좋겠어.