解决绘制线单侧时的一些问题

ArchitectureColoredPainting/ArchitectureColoredPainting.vcxproj

@@ -99,6 +99,7 @@
   <ItemGroup>
     <ClCompile Include="src\CaptionButton.cpp" />
     <ClCompile Include="src\Editor\EditorWidget.cpp" />
+    <ClCompile Include="src\Editor\GraphicElement.cpp" />
     <ClCompile Include="src\IconWidget.cpp" />
     <ClCompile Include="src\main.cpp" />
     <ClCompile Include="src\MainWindow.cpp" />
@@ -150,6 +151,7 @@
   </ItemGroup>
   <ItemGroup>
     <QtMoc Include="src\MainWindow.h" />
+    <ClInclude Include="src\Editor\GraphicElement.h" />
     <ClInclude Include="src\Renderer\Painting\Element.h" />
     <ClInclude Include="src\Renderer\Painting\Painting.h" />
     <ClInclude Include="src\SvgParser.h" />

ArchitectureColoredPainting/ArchitectureColoredPainting.vcxproj.filters

@@ -126,6 +126,9 @@
     <ClCompile Include="src\Renderer\Painting\Element.cpp">
       <Filter>Source Files\Renderer\Painting</Filter>
     </ClCompile>
+    <ClCompile Include="src\Editor\GraphicElement.cpp">
+      <Filter>Source Files\Editor</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <QtMoc Include="src\Renderer\RendererGLWidget.h">
@@ -266,6 +269,9 @@
     <ClInclude Include="src\Renderer\Painting\Element.h">
       <Filter>Header Files\Renderer\Painting</Filter>
     </ClInclude>
+    <ClInclude Include="src\Editor\GraphicElement.h">
+      <Filter>Header Files\Editor</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <QtRcc Include="MainWindow.qrc">

ArchitectureColoredPainting/Shaders/painting.comp

@@ -251,8 +251,65 @@ int cubic_bezier_int_test(vec2 uv, vec2 p0, vec2 p1, vec2 p2, vec2 p3)
 	return n_ints;
 }
 
-bool cubic_bezier_sign_test(vec2 uv, vec2 p0, vec2 p1, vec2 p2, vec2 p3)
+bvec3 cubic_bezier_sign_test(vec2 uv, vec2 p0, vec2 p1, vec2 p2, vec2 p3)
 {
+	// float cu = (-p0.y + 3. * p1.y - 3. * p2.y + p3.y);
+	// float qu = (3. * p0.y - 6. * p1.y + 3. * p2.y);
+	// float li = (-3. * p0.y + 3. * p1.y);
+	// float co = p0.y - uv.y;
+
+	// vec3 roots = vec3(1e38);
+	// int n_roots;
+
+	// int n_ints = 0;
+	// bvec3 result = bvec3(false);
+
+	// if (uv.x < min(min(p0.x, p1.x), min(p2.x, p3.x)))
+	// {
+	// 	if (uv.y >= min(p0.y, p3.y) && uv.y <= max(p0.y, p3.y))
+	// 	{
+	// 		n_ints = 1;
+	// 		result[1] = !result[1];
+	// 	}
+	// }
+	// else
+	// {
+
+	// 	if (abs(cu) < .0001)
+	// 	{
+	// 		n_roots = solve_quadric(vec2(co / qu, li / qu), roots.xy);
+	// 	}
+	// 	else
+	// 	{
+	// 		n_roots = solve_cubic(vec3(co / cu, li / cu, qu / cu), roots);
+	// 	}
+
+	// 	for (int i = 0; i < n_roots; i++)
+	// 	{
+	// 		//if (roots[i] >= 0. && roots[i] <= 1.)
+	// 		{
+	// 			float x_pos = -p0.x + 3. * p1.x - 3. * p2.x + p3.x;
+	// 			x_pos = x_pos * roots[i] + 3. * p0.x - 6. * p1.x + 3. * p2.x;
+	// 			x_pos = x_pos * roots[i] + -3. * p0.x + 3. * p1.x;
+	// 			x_pos = x_pos * roots[i] + p0.x;
+
+	// 			if (x_pos > uv.x)
+	// 			{
+	// 				if(roots[i] >= 0. && roots[i] <= 1.){
+	// 					result[1] = !result[1];
+	// 				}
+	// 				else if(roots[i] < 0.)
+	// 				{
+	// 					result[0]=!result[0];
+	// 				}
+	// 				else
+	// 					result[2]=!result[2];
+	// 				//n_ints++;
+	// 			}
+	// 		}
+	// 	}
+	// }
+	// return result;
 	float cu = (-p0.y + 3. * p1.y - 3. * p2.y + p3.y);
 	float qu = (3. * p0.y - 6. * p1.y + 3. * p2.y);
 	float li = (-3. * p0.y + 3. * p1.y);
@@ -261,24 +318,52 @@ bool cubic_bezier_sign_test(vec2 uv, vec2 p0, vec2 p1, vec2 p2, vec2 p3)
 	vec3 roots = vec3(1e38);
 	int n_roots = solve_cubic(vec3(co/cu,li/cu,qu/cu),roots);
 
-	int n_ints = 0;
+	//int n_ints = 0;
-
+	bvec3 result = bvec3(false);
 	for(int i=0;i<3;i++){
 		if(i < n_roots){
-			//if(roots[i] >= 0. && roots[i] <= 1.){
+			if(roots[i] >= 0. && roots[i] <= 1.){
 				float x_pos = -p0.x + 3. * p1.x - 3. * p2.x + p3.x;
 				x_pos = x_pos * roots[i] + 3. * p0.x - 6. * p1.x + 3. * p2.x;
 				x_pos = x_pos * roots[i] + -3. * p0.x + 3. * p1.x;
 				x_pos = x_pos * roots[i] + p0.x;
 
-				if(x_pos < uv.x){
+				if(x_pos > uv.x){
-					n_ints++;
+					result[1] = !result[1];
 				}
-			//}
+			}
+		}
+	}
+
+	vec2 tang1 = p0.xy - p1.xy;
+	vec2 tang2 = p2.xy - p3.xy;
+
+	vec2 nor1 = vec2(tang1.y,-tang1.x);
+	vec2 nor2 = vec2(tang2.y,-tang2.x);
+
+	if(p0.y < p1.y){
+		if((uv.y<=p0.y) && (dot(uv-p0.xy,nor1)>0.)){
+			result[0]=!result[0];
+		}
+	}
+	else{
+		if(!(uv.y<=p0.y) && !(dot(uv-p0.xy,nor1)>0.)){
+			result[0]=!result[0];
+		}
+	}
+
+	if(p2.y<p3.y){
+		if(!(uv.y<=p3.y) && dot(uv-p3.xy,nor2)>0.){
+			result[2]=!result[2];
+		}
+	}
+	else{
+		if((uv.y<=p3.y) && !(dot(uv-p3.xy,nor2)>0.)){
+			result[2]=!result[2];
 		}
 	}
 	
-	return n_ints%2==0;
+	return result;
 	// if(n_ints==0 || n_ints==2 || n_ints==4){
 	// 	return 1;
 	// }
@@ -840,11 +925,12 @@ bool drawElement(uint elementIndex, vec2 localUV, out vec3 color, out vec2 metal
 						float strokeWidth = elementData[styleIndex+1];
 						uint contourIndex = linesOffset + leftChild - 0x80000000; 
 						float d = 1e38;
-						uint signTmp=0;
+						bool signTmp=false;
 						uint lineCountTmp=0;
 						uint lastPIndex = -1;
+						bool lastSign = false;
 						uint lineCount = elementIndexs[contourIndex];
-				
+						uint reverseFlag = 0;
 						for ( uint contourIterator = contourIndex + 1;contourIterator < contourIndex + 1 + lineCount; contourIterator++)
 						{
 							uint lineIndex = elementIndexs[contourIterator];
@@ -854,6 +940,7 @@ bool drawElement(uint elementIndex, vec2 localUV, out vec3 color, out vec2 metal
 								reverse = true;
 								lineIndex -= 0x80000000;
 							}
+							
 							uint pLocation = linesOffset + 4 * lineIndex;
 							uvec4 pxIndex = uvec4(pointsOffset)+2*uvec4(elementIndexs[pLocation], elementIndexs[pLocation+1], elementIndexs[pLocation+2], elementIndexs[pLocation+3]);
 							uvec4 pyIndex = uvec4(1)+pxIndex;
@@ -863,52 +950,122 @@ bool drawElement(uint elementIndex, vec2 localUV, out vec3 color, out vec2 metal
 										elementData[pxIndex[2]],elementData[pyIndex[2]],
 										elementData[pxIndex[3]], elementData[pyIndex[3]]);
 							
+							bvec3 signTestResult = cubic_bezier_sign_test(localUV, p[0], p[1], p[2], p[3]);
+	
 							if(lastPIndex!=pxIndex[0])
 							{
+								if(lastSign)
+									signTmp = !signTmp;
 								float lineType = elementData[styleIndex+4];
 								if(d<=0.001)
 								{
 									hitElement = true;
 									elementColor = vec4(0,0,0,1);
 								}	
-								else if(d<=strokeWidth && signTmp==lineCountTmp)
+								else if(d<=strokeWidth && (lineType==2 || signTmp==(lineType==1-reverseFlag)))
 								{
+									d/=strokeWidth;
 									hitElement = true;
 									elementColor = vec4(1);
+									metallicRoughness = vec2(0.8);
 									if(elementData[styleIndex+3]==0)
 									{
 										elementColor = vec4(elementData[styleIndex+7],elementData[styleIndex+8],elementData[styleIndex+9],1);
 										metallicRoughness = vec2(elementData[styleIndex+10],elementData[styleIndex+11]);
 									}
+									else if(elementData[styleIndex+3]==1)
+									{
+										elementColor = vec4(mix(vec3(0), vec3(1), d), 1);
+										metallicRoughness = vec2(0,0.8);
+									}
+									else if(elementData[styleIndex+3]==2)
+									{
+										float levels[] = {0.25,0.5,0.75};
+										vec3 colors[] = {vec3(1,0,0), vec3(0,1,0), vec3(0,0,1), vec3(1,1,0)};
+										int i = 0;
+										while(i<3)
+										{
+											if(d<levels[i])
+											{
+												elementColor = vec4(colors[i], 1);
+												metallicRoughness = vec2(0,0.8);
+												break;
+											}
+											i++;
+										}
+										if(i==3)
+										{
+											elementColor = vec4(colors[i], 1);
+											metallicRoughness = vec2(0,0.8);
+										}
+								
+								
+									}
 								}
+								if(reverse)
+									reverseFlag = 1;
 								d = 1e38;
-								signTmp=0;
+								signTmp=signTestResult[0];
 								lineCountTmp = 0;
+			
 							}
 							lastPIndex = pxIndex[3];
+							lastSign = signTestResult[2];
 							lineCountTmp++;
 							float lineType = elementData[styleIndex+4];
 							d = min(d, cubic_bezier_dis(localUV, p[0], p[1], p[2], p[3], elementData[styleIndex+2]==0));
-							if(lineType==2 || cubic_bezier_sign_test(localUV, p[0], p[1], p[2], p[3])==(reverse? lineType==0: lineType==1))
+							if(signTestResult[1])
-								++signTmp;
+								signTmp = !signTmp;
 
 
 						}
+						if(lastSign)
+							signTmp = !signTmp;
 						float lineType = elementData[styleIndex+4];
 						if(d<=0.001)
 						{
 							hitElement = true;
 							elementColor = vec4(0,0,0,1);
 						}	
-						else if(d<=strokeWidth && signTmp==lineCountTmp)
+						else if(d<=strokeWidth && (lineType==2 || signTmp==(lineType==1-reverseFlag)))
 						{
+							d/=strokeWidth;
 							hitElement = true;
 							elementColor = vec4(1);
+							metallicRoughness = vec2(0.8);
 							if(elementData[styleIndex+3]==0)
 							{
 								elementColor = vec4(elementData[styleIndex+7],elementData[styleIndex+8],elementData[styleIndex+9],1);
 								metallicRoughness = vec2(elementData[styleIndex+10],elementData[styleIndex+11]);
 							}
+							else if(elementData[styleIndex+3]==1)
+							{
+								elementColor = vec4(mix(vec3(0), vec3(1), d), 1);
+								metallicRoughness = vec2(0,0.8);
+							}
+							else if(elementData[styleIndex+3]==2)
+							{
+								float levels[] = {0.25,0.5,0.75};
+								vec3 colors[] = {vec3(1,0,0), vec3(0,1,0), vec3(0,0,1), vec3(1,1,0)};
+								int i = 0;
+								while(i<3)
+								{
+									if(d<levels[i])
+									{
+										elementColor = vec4(colors[i], 1);
+										metallicRoughness = vec2(0,0.8);
+										break;
+									}
+									i++;
+								}
+								if(i==3)
+								{
+									elementColor = vec4(colors[i], 1);
+									metallicRoughness = vec2(0,0.8);
+								}
+								
+								
+							}
 						}	
 
 						// float strokeWidth = elementData[styleIndex+1];

ArchitectureColoredPainting/src/Renderer/Model.cpp

@@ -291,7 +291,7 @@ Drawable* Model::processMesh(aiMesh* mesh, const aiScene* scene, aiMatrix4x4 mod
 			1,2,
 			encodeChild(20)/*contour索引，由于contour不定长，这里需要给到contour在elementIndex中位置*/,14/*style索引，在elementData中位置*/, encodeChild(24), 14,
 			//elememt1
-			encodeChild(12)/*contour乞多*/, 35
+			encodeChild(12)/*contour乞多*/, 39
 
 		};
 		std::vector<QVector4D> bvhBounds0 = {
@@ -331,11 +331,11 @@ Drawable* Model::processMesh(aiMesh* mesh, const aiScene* scene, aiMatrix4x4 mod
 			3, 0,2,3,
 			//element1
 			//lines
-			0,0,1,1,
+			0,7,8,1,
 			1,2,3,4,
 			5,5,6,6,
 			//contours
-			3, 0+ 0x80000000 ,1,2
+			2, 0 ,1
 		};
 
 		std::vector<GLfloat> elementData0 = {
@@ -352,16 +352,16 @@ Drawable* Model::processMesh(aiMesh* mesh, const aiScene* scene, aiMatrix4x4 mod
 
 			//element1
 			//points
-			-0.5,-0.5, -0.5,0.5, 0.2,0.5, 0.5,0.2, 0.5,-0.5, -0.8,-0.5, -0.8,0.5,
+			0.5,-0.5, 0.5,0.5, -0.2,0.5, -0.5,0.2, -0.5,-0.5, -0.8,-0.5, -0.8,0.5, 0.5,-0.4, 0.5,0.4,
 			//strokeStyle
 			//stroke
 			1,
 			//strokeWidth
-			0.02,
+			0.1,
 			//strokeEndType
 			0, //圆角
 			//strokeFillType
-			0, //데<>
+			2, //데<>
 			//线类型
 			1, //左侧
 			//线外描边宽度