Update grid line width and fading

Author: adriengivry

Resources/Editor/Shaders/Grid.ovfx

@@ -49,21 +49,20 @@ in VS_OUT
 
 uniform vec3 u_Color;
 
-float MAG(float p_lp)
+float MAG(float lineWidth, float p_lp)
 {
-    const float lineWidth = 1.0f;
     const vec2 coord = fs_in.TexCoords / p_lp;
     const vec2 grid = abs(fract(coord - 0.5) - 0.5) / fwidth(coord);
     const float line = min(grid.x, grid.y);
     const float lineResult = lineWidth - min(line, lineWidth);
     return lineResult;
 }
 
-float Grid(float height, float a, float b, float c)
+float Grid(float lineWidth, float height, float a, float b, float c)
 {
-    const float cl = MAG(a);
-    const float ml = MAG(b);
-    const float fl = MAG(c);
+    const float cl = MAG(lineWidth, a);
+    const float ml = MAG(lineWidth, b);
+    const float fl = MAG(lineWidth, c);
     const float cmit = 10.0f;
     const float cmet = 40.0f;
     const float mfit = 80.0f;
@@ -78,9 +77,9 @@ float Grid(float height, float a, float b, float c)
 void main()
 {
     const float height = distance(ubo_ViewPos.y, fs_in.FragPos.y);
-    const float gridA = Grid(height, 1.0f, 4.0f, 8.0f);
-    const float gridB = Grid(height, 4.0f, 16.0f, 32.0f);
-    const float grid = gridA * 0.25f + gridB * 0.5f;
+    const float gridA = Grid(0.5f, height, 1.0f, 4.0f, 8.0f);
+    const float gridB = Grid(0.7f, height, 4.0f, 16.0f, 32.0f);
+    const float grid = gridA * 0.7f + gridB * 0.7f;
 
     // Calculate view direction vector (from camera to fragment)
     const vec3 viewDir = normalize(fs_in.FragPos - ubo_ViewPos);
@@ -90,7 +89,7 @@ void main()
     const float horizonFactor = abs(viewDir.y);
 
     // Define how much we want to fade when looking at horizon
-    const float horizonMinFade = 0.01f; // Minimum fade at horizon
+    const float horizonMinFade = 0.02f; // Minimum fade at horizon
     const float horizonFadeStart = 0.0f; // Start fading at this angle
     const float horizonFadeEnd = 1.0f; // Full grid strength at this angle
 

Sources/Overload/OvEditor/src/OvEditor/Rendering/GridRenderPass.cpp

@@ -50,7 +50,9 @@ void OvEditor::Rendering::GridRenderPass::Draw(OvRendering::Data::PipelineState
 	m_renderer.GetFeature<DebugModelRenderFeature>()
 		.DrawModelWithSingleMaterial(pso, *EDITOR_CONTEXT(editorResources)->GetModel("Plane"), m_gridMaterial, model);
 
-	debugShapeRenderer.DrawLine(pso, OvMaths::FVector3(-gridSize + gridDescriptor.viewPosition.x, 0.0f, 0.0f), OvMaths::FVector3(gridSize + gridDescriptor.viewPosition.x, 0.0f, 0.0f), OvMaths::FVector3(1.0f, 0.0f, 0.0f), 1.0f);
-	debugShapeRenderer.DrawLine(pso, OvMaths::FVector3(0.0f, -gridSize + gridDescriptor.viewPosition.y, 0.0f), OvMaths::FVector3(0.0f, gridSize + gridDescriptor.viewPosition.y, 0.0f), OvMaths::FVector3(0.0f, 1.0f, 0.0f), 1.0f);
-	debugShapeRenderer.DrawLine(pso, OvMaths::FVector3(0.0f, 0.0f, -gridSize + gridDescriptor.viewPosition.z), OvMaths::FVector3(0.0f, 0.0f, gridSize + gridDescriptor.viewPosition.z), OvMaths::FVector3(0.0f, 0.0f, 1.0f), 1.0f);
+	constexpr float kLineWidth = 1.0f;
+
+	debugShapeRenderer.DrawLine(pso, OvMaths::FVector3(-gridSize + gridDescriptor.viewPosition.x, 0.0f, 0.0f), OvMaths::FVector3(gridSize + gridDescriptor.viewPosition.x, 0.0f, 0.0f), OvMaths::FVector3::Right, kLineWidth);
+	debugShapeRenderer.DrawLine(pso, OvMaths::FVector3(0.0f, -gridSize + gridDescriptor.viewPosition.y, 0.0f), OvMaths::FVector3(0.0f, gridSize + gridDescriptor.viewPosition.y, 0.0f), OvMaths::FVector3::Up, kLineWidth);
+	debugShapeRenderer.DrawLine(pso, OvMaths::FVector3(0.0f, 0.0f, -gridSize + gridDescriptor.viewPosition.z), OvMaths::FVector3(0.0f, 0.0f, gridSize + gridDescriptor.viewPosition.z), OvMaths::FVector3::Forward, kLineWidth);
 }