some lightmapper fixes

WickedEngine/renderlightmapPS.hlsl

@@ -20,7 +20,7 @@ float4 main(Input input) : SV_TARGET
 	Ray ray = CreateRay(input.pos3D + N * EPSILON, direction);
 
 	const uint bounces = 4;
-	for (uint i = 0; i < bounces; ++i)
+	for (uint i = 0; i < bounces && any(ray.energy); ++i)
 	{
 		RayHit hit = TraceScene(ray);
 		result += ray.energy * Shade(ray, hit, seed, uv);

WickedEngine/wiGraphicsDevice_DX11.cpp

@@ -3058,6 +3058,7 @@ void GraphicsDevice_DX11::PresentEnd()
 	memset(prev_hs, 0, sizeof(prev_hs));
 	memset(prev_ds, 0, sizeof(prev_ds));
 	memset(prev_gs, 0, sizeof(prev_gs));
+	memset(prev_cs, 0, sizeof(prev_cs));
 	memset(prev_blendfactor, 0, sizeof(prev_blendfactor));
 	memset(prev_samplemask, 0, sizeof(prev_samplemask));
 	memset(prev_bs, 0, sizeof(prev_bs));
@@ -3581,7 +3582,6 @@ void GraphicsDevice_DX11::BindComputePSO(ComputePSO* pso, GRAPHICSTHREAD threadI
 {
 	const ComputePSODesc& desc = pso != nullptr ? pso->GetDesc() : ComputePSODesc();
 
-	static ID3D11ComputeShader* prev_cs[GRAPHICSTHREAD_COUNT] = {};
 	ID3D11ComputeShader* cs = desc.cs == nullptr ? nullptr : (ID3D11ComputeShader*)desc.cs->resource;
 	if (cs != prev_cs[threadID])
 	{

WickedEngine/wiGraphicsDevice_DX11.h

@@ -32,6 +32,7 @@ namespace wiGraphicsTypes
 		ID3D11HullShader* prev_hs[GRAPHICSTHREAD_COUNT] = {};
 		ID3D11DomainShader* prev_ds[GRAPHICSTHREAD_COUNT] = {};
 		ID3D11GeometryShader* prev_gs[GRAPHICSTHREAD_COUNT] = {};
+		ID3D11ComputeShader* prev_cs[GRAPHICSTHREAD_COUNT] = {};
 		XMFLOAT4 prev_blendfactor[GRAPHICSTHREAD_COUNT] = {};
 		UINT prev_samplemask[GRAPHICSTHREAD_COUNT] = {};
 		ID3D11BlendState* prev_bs[GRAPHICSTHREAD_COUNT] = {};

WickedEngine/wiRenderer.cpp

@@ -432,6 +432,7 @@ void ReloadShaders(const std::string& path)
 	CSFFT_512x512_Data_t::LoadShaders();
 	wiWidget::LoadShaders();
 	wiGPUSortLib::LoadShaders();
+	wiGPUBVH::LoadShaders();
 }
 
 Scene& GetScene()
@@ -7617,7 +7618,7 @@ void RenderObjectLightMap(ObjectComponent& object, bool updateBVHAndScene, GRAPH
 	cb.g_xColor = wiMath::GetHaltonSequence(object.lightmapIterationCount); // for jittering the rasterization (good for eliminating atlas border artifacts)
 	cb.g_xColor.x = (cb.g_xColor.x * 2 - 1) / vp.Width;
 	cb.g_xColor.y = (cb.g_xColor.y * 2 - 1) / vp.Height;
-	cb.g_xColor.z = (float)wiRandom::getRandom(1, 1000000); // random seed
+	cb.g_xColor.z = renderTime; // random seed
 	cb.g_xColor.w = 1.0f / (object.lightmapIterationCount + 1.0f); // accumulation factor (alpha)
 	device->UpdateBuffer(constantBuffers[CBTYPE_MISC], &cb, threadID);
 	device->DrawIndexedInstanced((int)mesh.indices.size(), 1, 0, 0, 0, threadID);
@@ -7659,7 +7660,7 @@ void ManageLightmapAtlas(GRAPHICSTHREAD threadID)
 		{
 			refresh = true;
 			// Create a GPU-side per object lighmap if there is none yet, so that copying into atlas can be done efficiently:
-			wiTextureHelper::CreateTexture(object.lightmap, object.lightmapTextureData.data(), object.lightmapWidth, object.lightmapHeight, RTFormat_hdr);
+			wiTextureHelper::CreateTexture(object.lightmap, object.lightmapTextureData.data(), object.lightmapWidth, object.lightmapHeight, FORMAT_R32G32B32A32_FLOAT);
 		}
 
 		if (object.lightmap != nullptr)

WickedEngine/wiSceneSystem.cpp

@@ -768,6 +768,8 @@ namespace wiSceneSystem
 		UINT data_stride = device->GetFormatStride(desc.Format);
 		UINT data_size = data_count * data_stride;
 
+		lightmapWidth = desc.Width;
+		lightmapHeight = desc.Height;
 		lightmapTextureData.clear();
 		lightmapTextureData.resize(data_size);
 

WickedEngine/wiVersion.cpp

@@ -9,7 +9,7 @@ namespace wiVersion
 	// minor features, major updates
 	const int minor = 24;
 	// minor bug fixes, alterations, refactors, updates
-	const int revision = 2;
+	const int revision = 3;
 
 
 	long GetVersion()