Add API to control the display camera's near and far planes

* This is separate from the near/far used to unproject rasterizer output vertex
  data.

renderdoc/api/replay/renderdoc_replay.h

@@ -1731,6 +1731,15 @@ struct ICamera
   DOCUMENT("Closes the camera handle.");
   virtual void Shutdown() = 0;
 
+  DOCUMENT(R"(Sets the near and far plane for the camera's display.
+
+The default value is ``0.1 - 100000.0`` if these are not set explicitly.
+
+:param float n: The near plane.
+:param float f: The far plane.
+)");
+  virtual void SetNearFar(float n, float f) = 0;
+
   DOCUMENT(R"(Sets the position for the camera, either arcball or FPS.
 
 For arcball cameras, this sets the lookat position at the centre of the arcball.

renderdoc/driver/d3d11/d3d11_rendermesh.cpp

@@ -60,7 +60,11 @@ void D3D11Replay::RenderMesh(uint32_t eventId, const rdcarray<MeshFormat> &secon
 
   D3D11RenderStateTracker tracker(m_pImmediateContext);
 
-  Matrix4f projMat = Matrix4f::Perspective(90.0f, 0.1f, 100000.0f, m_OutputWidth / m_OutputHeight);
+  float nearPlane = cfg.cam ? ((Camera *)cfg.cam)->GetNear() : 0.1f;
+  float farPlane = cfg.cam ? ((Camera *)cfg.cam)->GetFar() : 100000.0f;
+
+  Matrix4f projMat =
+      Matrix4f::Perspective(90.0f, nearPlane, farPlane, m_OutputWidth / m_OutputHeight);
 
   Matrix4f camMat = cfg.cam ? ((Camera *)cfg.cam)->GetMatrix() : Matrix4f::Identity();
 

renderdoc/driver/d3d11/d3d11_replay.cpp

@@ -3066,7 +3066,10 @@ uint32_t D3D11Replay::PickVertex(uint32_t eventId, int32_t width, int32_t height
   cbuf.PickFlipY = cfg.position.flipY;
   cbuf.PickOrtho = cfg.ortho;
 
-  Matrix4f projMat = Matrix4f::Perspective(90.0f, 0.1f, 100000.0f, float(width) / float(height));
+  float nearPlane = cfg.cam ? ((Camera *)cfg.cam)->GetNear() : 0.1f;
+  float farPlane = cfg.cam ? ((Camera *)cfg.cam)->GetFar() : 100000.0f;
+
+  Matrix4f projMat = Matrix4f::Perspective(90.0f, nearPlane, farPlane, float(width) / float(height));
 
   Matrix4f camMat = cfg.cam ? ((Camera *)cfg.cam)->GetMatrix() : Matrix4f::Identity();
 

renderdoc/driver/d3d12/d3d12_rendermesh.cpp

@@ -274,7 +274,11 @@ void D3D12Replay::RenderMesh(uint32_t eventId, const rdcarray<MeshFormat> &secon
 
   MeshVertexCBuffer vertexData;
 
-  Matrix4f projMat = Matrix4f::Perspective(90.0f, 0.1f, 100000.0f, viewport.Width / viewport.Height);
+  float nearPlane = cfg.cam ? ((Camera *)cfg.cam)->GetNear() : 0.1f;
+  float farPlane = cfg.cam ? ((Camera *)cfg.cam)->GetFar() : 100000.0f;
+
+  Matrix4f projMat =
+      Matrix4f::Perspective(90.0f, nearPlane, farPlane, viewport.Width / viewport.Height);
   Matrix4f InvProj = projMat.Inverse();
 
   Matrix4f camMat = cfg.cam ? ((Camera *)cfg.cam)->GetMatrix() : Matrix4f::Identity();

renderdoc/driver/d3d12/d3d12_replay.cpp

@@ -2292,7 +2292,10 @@ uint32_t D3D12Replay::PickVertex(uint32_t eventId, int32_t width, int32_t height
   cbuf.PickFlipY = cfg.position.flipY;
   cbuf.PickOrtho = cfg.ortho;
 
-  Matrix4f projMat = Matrix4f::Perspective(90.0f, 0.1f, 100000.0f, float(width) / float(height));
+  float nearPlane = cfg.cam ? ((Camera *)cfg.cam)->GetNear() : 0.1f;
+  float farPlane = cfg.cam ? ((Camera *)cfg.cam)->GetFar() : 100000.0f;
+
+  Matrix4f projMat = Matrix4f::Perspective(90.0f, nearPlane, farPlane, float(width) / float(height));
 
   Matrix4f camMat = cfg.cam ? ((Camera *)cfg.cam)->GetMatrix() : Matrix4f::Identity();
 

renderdoc/driver/gl/gl_debug.cpp

@@ -2487,7 +2487,10 @@ uint32_t GLReplay::PickVertex(uint32_t eventId, int32_t width, int32_t height,
 
   drv.glUseProgram(DebugData.meshPickProgram);
 
-  Matrix4f projMat = Matrix4f::Perspective(90.0f, 0.1f, 100000.0f, float(width) / float(height));
+  float nearPlane = cfg.cam ? ((Camera *)cfg.cam)->GetNear() : 0.1f;
+  float farPlane = cfg.cam ? ((Camera *)cfg.cam)->GetFar() : 100000.0f;
+
+  Matrix4f projMat = Matrix4f::Perspective(90.0f, nearPlane, farPlane, float(width) / float(height));
 
   Matrix4f camMat = cfg.cam ? ((Camera *)cfg.cam)->GetMatrix() : Matrix4f::Identity();
   Matrix4f pickMVP = projMat.Mul(camMat);

renderdoc/driver/gl/gl_rendermesh.cpp

@@ -56,8 +56,11 @@ void GLReplay::RenderMesh(uint32_t eventId, const rdcarray<MeshFormat> &secondar
   GLMarkerRegion renderMesh(
       StringFormat::Fmt("RenderMesh with %zu secondary draws", secondaryDraws.size()));
 
+  float nearPlane = cfg.cam ? ((Camera *)cfg.cam)->GetNear() : 0.1f;
+  float farPlane = cfg.cam ? ((Camera *)cfg.cam)->GetFar() : 100000.0f;
+
   Matrix4f projMat =
-      Matrix4f::Perspective(90.0f, 0.1f, 100000.0f, DebugData.outWidth / DebugData.outHeight);
+      Matrix4f::Perspective(90.0f, nearPlane, farPlane, DebugData.outWidth / DebugData.outHeight);
 
   Matrix4f camMat = cfg.cam ? ((Camera *)cfg.cam)->GetMatrix() : Matrix4f::Identity();
 

renderdoc/driver/vulkan/vk_debug.cpp

@@ -1225,7 +1225,10 @@ uint32_t VulkanReplay::PickVertex(uint32_t eventId, int32_t width, int32_t heigh
 
   VkMarkerRegion::Begin(StringFormat::Fmt("VulkanReplay::PickVertex(%u, %u)", x, y));
 
-  Matrix4f projMat = Matrix4f::Perspective(90.0f, 0.1f, 100000.0f, float(width) / float(height));
+  float nearPlane = cfg.cam ? ((Camera *)cfg.cam)->GetNear() : 0.1f;
+  float farPlane = cfg.cam ? ((Camera *)cfg.cam)->GetFar() : 100000.0f;
+
+  Matrix4f projMat = Matrix4f::Perspective(90.0f, nearPlane, farPlane, float(width) / float(height));
 
   Matrix4f camMat = cfg.cam ? ((Camera *)cfg.cam)->GetMatrix() : Matrix4f::Identity();
   Matrix4f pickMVP = projMat.Mul(camMat);

renderdoc/driver/vulkan/vk_rendermesh.cpp

@@ -508,8 +508,11 @@ void VulkanReplay::RenderMesh(uint32_t eventId, const rdcarray<MeshFormat> &seco
   VkViewport viewport = {0.0f, 0.0f, (float)m_DebugWidth, (float)m_DebugHeight, 0.0f, 1.0f};
   vt->CmdSetViewport(Unwrap(cmd), 0, 1, &viewport);
 
+  float nearPlane = cfg.cam ? ((Camera *)cfg.cam)->GetNear() : 0.1f;
+  float farPlane = cfg.cam ? ((Camera *)cfg.cam)->GetFar() : 100000.0f;
+
   Matrix4f projMat =
-      Matrix4f::Perspective(90.0f, 0.1f, 100000.0f, float(m_DebugWidth) / float(m_DebugHeight));
+      Matrix4f::Perspective(90.0f, nearPlane, farPlane, float(m_DebugWidth) / float(m_DebugHeight));
   Matrix4f InvProj = projMat.Inverse();
 
   Matrix4f camMat = cfg.cam ? ((Camera *)cfg.cam)->GetMatrix() : Matrix4f::Identity();

renderdoc/maths/camera.h

@@ -46,6 +46,15 @@ public:
     pos = Vec3f(x, y, z);
   }
 
+  void SetNearFar(float n, float f)
+  {
+    m_Near = n;
+    m_Far = f;
+  }
+
+  float GetNear() { return m_Near; }
+  float GetFar() { return m_Far; }
+
   // Arcball functions
   void ResetArcball();
   void SetArcballDistance(float d)
@@ -76,6 +85,8 @@ private:
   bool dirty;
   Matrix4f mat, basis;
 
+  float m_Near = 0.1f, m_Far = 100000.0f;
+
   Vec3f pos;
 
   // Arcball