Workaround flickering dlight texture.

jpcy · Feb 15, 2016 · 407e254 · 407e254
1 parent 1a3a6dd
commit 407e254
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Showing 3 changed files with 4 additions and 2 deletions.
diff --git a/code/renderer_bgfx/Main.cpp b/code/renderer_bgfx/Main.cpp
@@ -233,6 +233,9 @@ DynamicLightManager::DynamicLightManager() : nLights_(0)
 	while (textureSize_ < sr)
 		textureSize_ *= 2;
 
+	// FIXME: workaround d3d11 flickering texture if smaller than 64x64 and not updated every frame
+	textureSize_ = std::max(64, textureSize_);
+
 	// Clamp and filter are just for debug drawing. Sampling uses texel fetch.
 	texture_ = bgfx::createTexture2D(textureSize_, textureSize_, 1, bgfx::TextureFormat::RGBA32F, BGFX_TEXTURE_U_CLAMP | BGFX_TEXTURE_V_CLAMP | BGFX_TEXTURE_MIN_POINT | BGFX_TEXTURE_MAG_POINT);
 }

diff --git a/code/renderer_bgfx/Main.h b/code/renderer_bgfx/Main.h
@@ -50,7 +50,7 @@ class DynamicLightManager
 	/// @param ignore Write 0 to the uniform number of lights.
 	void update(int frameNo, Uniforms *uniforms, bool ignore);
 
-	static const size_t maxLights = MAX_DLIGHTS;
+	static const size_t maxLights = 256;
 
 private:
 	DynamicLight lights_[BGFX_NUM_BUFFER_FRAMES][maxLights];

diff --git a/shaders/SharedDefines.sh b/shaders/SharedDefines.sh
@@ -37,7 +37,6 @@
 #define GEN_TEXCOORD 2
 
 #define MAX_DEFORMS 3
-#define MAX_DLIGHTS 256
 
 #define TCGEN_NONE               0
 #define TCGEN_ENVIRONMENT_MAPPED 1