first commitv1.0.0-beta

14 files changed, 703 insertions, 0 deletions

diff --git a/NvBlast/samples/resources/configs/assets.xml b/NvBlast/samples/resources/configs/assets.xml
new file mode 100644
index 0000000..6482345
--- /dev/null
+++ b/NvBlast/samples/resources/configs/assets.xml
@@ -0,0 +1,88 @@
+<Model file="wall" name="Model Wall (Simple)" position="0 11.5 0" rotation="1 0 0 -90"/>
+<Model file="wall" name="Model Wall (Skinned)" position="0 11.5 0" rotation="1 0 0 -90" isSkinned = "true"/>
+<Model file="hugeAsset" name="Tower - 38k chunks (Skinned)" position="0 0 0" rotation="1 0 0 0" isSkinned = "true"/>
+<Model file="towerSubsupport1" name="Tower subsupport-1 level (Simple)" position="0 0 0" rotation="1 0 0 0" isSkinned = "false"/>
+<Model file="towerSubsupport1" name="Tower subsupport-1 level (Skinned)" position="0 0 0" rotation="1 0 0 0" isSkinned = "true"/>
+<Model file="towerSubsupport2" name="Tower subsupport-2 level (Skinned)" position="0 0 0" rotation="1 0 0 0" isSkinned = "true"/>
+<Model file="towerSupport" name="Tower - only support (Skinned)" position="0 0 0" rotation="1 0 0 0" isSkinned = "true"/>
+<Model file="vase" name="Vase (Skinned)" position="0 1 0" rotation="1 0 0 0" isSkinned = "true"/>
+<Model file="table" name="Table" position="0 0.38 0" rotation="1 0 0 0"/>
+<Model file="bunny" name="Bunny (Simple)"/>
+<Model file="bunny" name="Bunny (Skinned)" isSkinned = "true"/>
+<Model file="bunnySubsupport" name="Bunny Subsupport (Simple)"/>
+<Model file="bunnySubsupport" name="Bunny Subsupport (Skinned)" isSkinned = "true"/>
+<Model file="bunnySupportOn2Level" name="Bunny Support on 2nd depth (Simple)"/>
+<Model file="bunnySupportOn2Level" name="Bunny Support on 2nd depth (Skinned)" isSkinned = "true"/>
+<Model id="blockwall" file="blockwall" name="Block Wall" position="0 7 0" isSkinned = "false"/>
+
+<Composite name="Block Walls (composite)" position="0 0 0">
+  <AssetRef id="blockwall" position="0 7 0" rotation="1 0 0 0" />
+  <AssetRef id="blockwall" position="0 21 0" rotation="1 0 0 0" />
+  <Joint asset0="0" asset1="1" chunk0="81" chunk1="70" position0="-11 7 0" position1="-11 -7 0" />
+  <Joint asset0="0" asset1="1" chunk0="46" chunk1="13" position0="0 7 0" position1="0 -7 0" />
+  <Joint asset0="0" asset1="1" chunk0="39" chunk1="4" position0="11 7 0" position1="11 -7 0" />
+</Composite> 
+
+<Composite name="Lego (composite)" position="0 0 0">
+	<AssetRef id="blockwall" position="-5 7 -5" />
+	<AssetRef id="blockwall" position="5 7 5" />
+	<AssetRef id="column" position="0 15 0" rotation="1 0 0 -90" />
+	<AssetRef id="column" position="0 27 0" />
+</Composite> 
+
+<Composite name="NRF Joints (composite)" position="0 0 0">
+	<AssetRef id="column support 1" position="15 10 0" />
+	<AssetRef id="column support 1" position="-15 10 0" />
+  	<Joint asset0="0" asset1="-1" chunk0="3" chunk1="0" position0="0 0 0" position1="15 30 0" />
+  	<Joint asset0="1" asset1="-1" chunk0="5" chunk1="0" position0="0 8 0" position1="-15 38 0" />
+</Composite>
+
+<Box name="Wall (3 depth, 625 nodes)" extents="20 20 2" staticHeight="0.5">
+	<Level slices="1 1 1"  />
+	<Level slices="5 5 1"  />
+	<Level slices="5 5 1" isSupport="true" />
+</Box> 
+
+<Box name="Wall (2 depth, 625 nodes, no root chunk)" extents="20 20 2" staticHeight="0.5">
+	<Level slices="5 5 1"  />
+	<Level slices="5 5 1" isSupport="true" />
+</Box> 
+
+<Box name="Poor Man's Cloth" extents="20 20 0.2" jointAllBonds = "true" >
+	<Level slices="1 1 1"  />
+	<Level slices="20 20 1" isSupport="true"  />
+	<Level slices="2 2 1"  />
+</Box> 
+
+<Box name="Cube (4 depth, 1728 nodes)" extents="20 20 20">
+	<Level slices="1 1 1"  />
+	<Level slices="2 2 2"  />
+	<Level slices="2 2 2"  />	
+	<Level slices="3 3 3" isSupport="true" />
+</Box> 
+
+<Box id="column" name="Column (3 depth, 50 nodes)" extents="2 20 2">
+	<Level slices="1 1 1"  />
+	<Level slices="1 5 1"  />
+	<Level slices="1 10 1"  isSupport="true"/>	
+</Box>
+
+<Box id="column support 1" name="Column (3 depth, 50 nodes)" extents="2 20 2">
+  <Level slices="1 1 1"  />
+  <Level slices="1 5 1"  isSupport="true" />
+  <Level slices="1 10 1" />
+</Box>
+
+<Box name="Cube of Layers (3 depth, 1250 nodes)" extents="20 20 20">
+	<Level slices="1 1 1"  />
+	<Level slices="1 1 10"  />
+	<Level slices="5 5 5"  isSupport="true"/>	
+</Box> 
+
+<Box name="Brittle Wall" extents="40 20 1" staticHeight="0.5">
+	<Level slices="1 1 1"  />
+	<Level slices="2 2 1"  />
+	<Level slices="2 2 1"  isSupport="true"/>	
+	<Level slices="2 2 2"  />
+	<Level slices="2 2 2"  />
+</Box> 
\ No newline at end of file
diff --git a/NvBlast/samples/resources/configs/resources.xml b/NvBlast/samples/resources/configs/resources.xml
new file mode 100644
index 0000000..57b709c
--- /dev/null
+++ b/NvBlast/samples/resources/configs/resources.xml
@@ -0,0 +1,5 @@
+<project toolsVersion="3.5">
+	<platform name="win">
+		<dependency name="BlastSampleResources" version="21645816"/>
+	</platform>
+</project>
diff --git a/NvBlast/samples/resources/shaders/common_buffers.hlsl b/NvBlast/samples/resources/shaders/common_buffers.hlsl
new file mode 100644
index 0000000..1aa3386
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/common_buffers.hlsl
@@ -0,0 +1,28 @@
+#ifndef COMMON_BUFFERS_HLSL
+#define COMMON_BUFFERS_HLSL
+
+cbuffer Camera : register(b0)
+{
+	row_major matrix viewProjection;
+	row_major matrix projectionInv;
+	float3 viewPos;
+};
+
+cbuffer World : register(b1)
+{
+	float3 ambientColor;
+	float3 pointLightPos;
+	float3 pointLightColor;
+	float3 dirLightDir;
+	float specularPower;
+	float3 dirLightColor;
+	float specularIntensity;
+};
+
+cbuffer Object : register(b2)
+{
+	row_major matrix model;
+	float4 defaultColor;
+};
+
+#endif
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/debug_primitive.hlsl b/NvBlast/samples/resources/shaders/debug_primitive.hlsl
new file mode 100644
index 0000000..a24ebfb
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/debug_primitive.hlsl
@@ -0,0 +1,31 @@
+#include "common_buffers.hlsl"
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 color : COLOR0;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float3 color : COLOR0;
+};
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4 worldSpacePos = mul(float4(iV.position, 1.0f), model);
+	float4 eyeSpacePos = mul(worldSpacePos, viewProjection);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.color = iV.color;
+
+	return oV;
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	return float4(iV.color, 1);
+}
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/lighting.hlsl b/NvBlast/samples/resources/shaders/lighting.hlsl
new file mode 100644
index 0000000..2dacc14
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/lighting.hlsl
@@ -0,0 +1,51 @@
+#include "common_buffers.hlsl"
+
+static const float att_c = 1.0f;
+static const float att_l = 0.014f;
+static const float att_q = 0.0007f;
+
+
+float CalcAttenuation(float distance)
+{
+	return 1 / (att_c + att_l * distance + att_q * distance * distance);
+};
+
+
+float3 CalcLight(float3 textureColor, float3 lightDir, float3 viewDir, float3 normal, float3 lightColor, float specPower, float specIntensity, float attenuation)
+{
+	normal = normalize(normal);
+
+	// diffuse
+	float3 dirToLight = normalize(-lightDir);
+	float diffuseFactor = max(dot(normal, dirToLight), 0.0);
+	float3 diffuse = lightColor * textureColor * diffuseFactor * attenuation;
+
+	// specular (Blinn-Phong)
+	float3 halfwayDir = normalize(dirToLight + viewDir);
+	float specFactor = pow(max(dot(viewDir, halfwayDir), 0.0), specPower);
+	float3 spec = lightColor * specFactor * attenuation * specIntensity;
+	
+	return diffuse + spec;
+};
+
+float3 CalcPixelLight(float3 diffuseColor, float3 worldPos, float3 normal)
+{
+	float3 viewDir = normalize(viewPos - worldPos);
+
+	// ambient
+	float3 ambient = ambientColor * diffuseColor;
+
+	// dir light
+	float3 dirLight = CalcLight(diffuseColor, dirLightDir, viewDir, normal, dirLightColor, specularPower, specularIntensity, 1);
+
+	// point light
+	float3 pointLightDir = worldPos - pointLightPos;
+	float distance = length(pointLightDir);
+    float attenuation = CalcAttenuation(distance);
+	float3 pointLight = CalcLight(diffuseColor, pointLightDir, viewDir, normal, pointLightColor, specularPower, specularIntensity, attenuation);
+	
+	// hacky hack: ambient attenuates within point light distance
+	ambient *= attenuation;
+
+	return ambient + dirLight + pointLight;
+};
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/model_simple.hlsl b/NvBlast/samples/resources/shaders/model_simple.hlsl
new file mode 100644
index 0000000..7d55a72
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/model_simple.hlsl
@@ -0,0 +1,42 @@
+#include "common_buffers.hlsl"
+#include "lighting.hlsl"
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 normal : NORMAL0;
+	float health : TEXCOORD1;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float4 worldPos : POSITION0;
+	float3 normal : NORMAL0;
+	float health : TEXCOORD1;
+};
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4 worldSpacePos = mul(float4(iV.position, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.worldPos = worldSpacePos;
+
+	// normals
+	float3 worldNormal = mul(iV.normal,  (float3x3)model);
+	oV.normal = worldNormal;
+
+	oV.health = iV.health;
+
+	return oV;
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	float3 lightColor = CalcPixelLight(defaultColor.xyz, iV.worldPos.xyz, iV.normal);	
+	lightColor.r = 1.0f - iV.health; // hack for health
+	return float4(lightColor, 1);
+}
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/model_simple_textured.hlsl b/NvBlast/samples/resources/shaders/model_simple_textured.hlsl
new file mode 100644
index 0000000..5167837
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/model_simple_textured.hlsl
@@ -0,0 +1,76 @@
+#include "common_buffers.hlsl"
+#include "lighting.hlsl"
+
+SamplerState defaultSampler : register(s0);
+Texture2D diffuseTexture : register(t0);
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 normal : NORMAL0;
+	float2 uv : TEXCOORD0;
+	float health : TEXCOORD1;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float4 worldPos : POSITION0;
+	float2 uv : TEXCOORD0;
+	float3 normal : NORMAL0;
+	float health : TEXCOORD1;
+};
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4 worldSpacePos = mul(float4(iV.position, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.worldPos = worldSpacePos;
+
+	// normals
+	float3 worldNormal = mul(float4(iV.normal, 0.0f), model);
+	oV.normal = worldNormal;
+
+	oV.uv = iV.uv;
+	oV.health = iV.health;
+
+	return oV;
+}
+
+float noise2(float2 co)
+{
+    return frac(sin(dot(co.xy, float2(12.9898,78.233))) * 43758.5453);
+}
+
+float voronoi( float2 x )
+{
+    int2 p = floor( x );
+    float2  f = frac( x );
+ 
+    float res = 8.0;
+    for( int j=-1; j<=1; j++ )
+    for( int i=-1; i<=1; i++ )
+    {
+        int2 b = int2( i, j );
+        float2  r = float2( b ) - f + noise2( p + b );
+        float d = dot( r, r );
+ 
+        res = min( res, d );
+    }
+    return sqrt( res );
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	float4 textureColor = diffuseTexture.Sample(defaultSampler, iV.uv);
+
+	// health cracks hack
+	float crack = 1.0f - voronoi(iV.uv * 50.0f);
+	crack = smoothstep(0.0f, 0.5f, crack);
+	textureColor = textureColor * lerp(1.0f, crack, (1.0f - iV.health) * 0.7f);
+
+	return float4(CalcPixelLight(textureColor, iV.worldPos, iV.normal), 1);
+}
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/model_skinned.hlsl b/NvBlast/samples/resources/shaders/model_skinned.hlsl
new file mode 100644
index 0000000..1e26c95
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/model_skinned.hlsl
@@ -0,0 +1,54 @@
+#include "common_buffers.hlsl"
+#include "lighting.hlsl"
+
+SamplerState defaultSampler : register(s0);
+Texture2D diffuseTexture : register(t0);
+Texture2D bonesTexture : register(t1);
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 normal : NORMAL0;
+	float2 uv : TEXCOORD0;
+	uint boneIndex : TEXCOORD1;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float4 worldPos : POSITION0;
+	float2 uv : TEXCOORD0;
+	float3 normal : NORMAL0;
+};
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4x4 boneMatrix;
+	boneMatrix[0] = bonesTexture.Load(int3(0, iV.boneIndex, 0));
+	boneMatrix[1] = bonesTexture.Load(int3(1, iV.boneIndex, 0));
+	boneMatrix[2] = bonesTexture.Load(int3(2, iV.boneIndex, 0));
+	boneMatrix[3] = bonesTexture.Load(int3(3, iV.boneIndex, 0));
+
+	float3 skinnedPos = mul(float4(iV.position, 1.0f), boneMatrix);
+	float4 worldSpacePos = mul(float4(skinnedPos, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.worldPos = worldSpacePos;
+
+	// normals
+	float3 localNormal = mul(float4(iV.normal, 0.0f), boneMatrix);
+	float3 worldNormal = mul(float4(localNormal, 0.0f), model);
+	oV.normal = worldNormal;
+
+	oV.uv = iV.uv;
+
+	return oV;
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	float3 lightColor = CalcPixelLight(defaultColor.xyz, iV.worldPos.xyz, iV.normal);	
+	return float4(lightColor, 1);
+}
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/model_skinned_textured.hlsl b/NvBlast/samples/resources/shaders/model_skinned_textured.hlsl
new file mode 100644
index 0000000..2b2bb0e
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/model_skinned_textured.hlsl
@@ -0,0 +1,54 @@
+#include "common_buffers.hlsl"
+#include "lighting.hlsl"
+
+SamplerState defaultSampler : register(s0);
+Texture2D diffuseTexture : register(t0);
+Texture2D bonesTexture : register(t1);
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 normal : NORMAL0;
+	float2 uv : TEXCOORD0;
+	uint boneIndex : TEXCOORD1;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float4 worldPos : POSITION0;
+	float2 uv : TEXCOORD0;
+	float3 normal : NORMAL0;
+};
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4x4 boneMatrix;
+	boneMatrix[0] = bonesTexture.Load(int3(0, iV.boneIndex, 0));
+	boneMatrix[1] = bonesTexture.Load(int3(1, iV.boneIndex, 0));
+	boneMatrix[2] = bonesTexture.Load(int3(2, iV.boneIndex, 0));
+	boneMatrix[3] = bonesTexture.Load(int3(3, iV.boneIndex, 0));
+
+	float3 skinnedPos = mul(float4(iV.position, 1.0f), boneMatrix);
+	float4 worldSpacePos = mul(float4(skinnedPos, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.worldPos = worldSpacePos;
+
+	// normals
+	float3 localNormal = mul(float4(iV.normal, 0.0f), boneMatrix);
+	float3 worldNormal = mul(float4(localNormal, 0.0f), model);
+	oV.normal = worldNormal;
+
+	oV.uv = iV.uv;
+
+	return oV;
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	float4 textureColor = diffuseTexture.Sample(defaultSampler, iV.uv);
+	return float4(CalcPixelLight(textureColor, iV.worldPos, iV.normal), 1);
+}
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/physx_primitive.hlsl b/NvBlast/samples/resources/shaders/physx_primitive.hlsl
new file mode 100644
index 0000000..03fd137
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/physx_primitive.hlsl
@@ -0,0 +1,37 @@
+#include "common_buffers.hlsl"
+#include "lighting.hlsl"
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 normal : NORMAL0;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float4 worldPos : POSITION0;
+	float3 normal : NORMAL0;
+};
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4 worldSpacePos = mul(float4(iV.position, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.worldPos = worldSpacePos;
+
+	// normals
+	float3 worldNormal = mul(iV.normal,  (float3x3)model);
+	oV.normal = worldNormal;
+
+	return oV;
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	float3 lightColor = CalcPixelLight(defaultColor.xyz, iV.worldPos.xyz, iV.normal);	
+	return float4(lightColor, 1);
+}
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/physx_primitive_plane.hlsl b/NvBlast/samples/resources/shaders/physx_primitive_plane.hlsl
new file mode 100644
index 0000000..3b2ec5d
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/physx_primitive_plane.hlsl
@@ -0,0 +1,64 @@
+#include "common_buffers.hlsl"
+#include "lighting.hlsl"
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 normal : NORMAL0;
+	float2 uv : TEXCOORD0;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float4 worldPos : POSITION0;
+	float2 uv : TEXCOORD0;
+	float3 normal : NORMAL0;
+};
+
+float filterwidth(float2 v)
+{
+  float2 fw = max(abs(ddx(v)), abs(ddy(v)));
+  return max(fw.x, fw.y);
+}
+
+float2 bump(float2 x) 
+{
+	return (floor(x/2) + 2.f * max((x/2) - floor(x/2) - .5f, 0.f)); 
+}
+
+float checker(float2 uv)
+{
+  float width = filterwidth(uv);
+  float2 p0 = uv - 0.5 * width;
+  float2 p1 = uv + 0.5 * width;
+  
+  float2 i = (bump(p1) - bump(p0)) / width;
+  return i.x * i.y + (1 - i.x) * (1 - i.y);
+}
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4 worldSpacePos = mul(float4(iV.position, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.uv = iV.uv;
+
+	oV.worldPos = worldSpacePos;
+
+	// normals
+	float3 worldNormal = mul(iV.normal,  (float3x3)model);
+	oV.normal = worldNormal;
+
+	return oV;
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	float4 color = defaultColor;
+	color *= 1.0 - 0.25 * checker(iV.uv);
+	float3 lightColor = CalcPixelLight(color.xyz, iV.worldPos.xyz, iV.normal);	
+	return float4(lightColor, 1);
+}
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/physx_primitive_transparent.hlsl b/NvBlast/samples/resources/shaders/physx_primitive_transparent.hlsl
new file mode 100644
index 0000000..d52392e
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/physx_primitive_transparent.hlsl
@@ -0,0 +1,40 @@
+#include "common_buffers.hlsl"
+#include "lighting.hlsl"
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 normal : NORMAL0;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float4 worldPos : POSITION0;
+	float3 normal : NORMAL0;
+};
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4 worldSpacePos = mul(float4(iV.position, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.worldPos = worldSpacePos;
+
+	// normals
+	float3 worldNormal = mul(iV.normal,  (float3x3)model);
+	oV.normal = worldNormal;
+
+	return oV;
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	float4 color = defaultColor;
+	float3 viewDir = normalize(viewPos - iV.worldPos.xyz);
+	float factor = max(0.0f, dot(normalize(iV.normal), viewDir));
+	color.a *= factor;
+	return color;
+}
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/pointsprite.hlsl b/NvBlast/samples/resources/shaders/pointsprite.hlsl
new file mode 100644
index 0000000..2bff194
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/pointsprite.hlsl
@@ -0,0 +1,106 @@
+#include "common_buffers.hlsl"
+#include "lighting.hlsl"
+
+SamplerState linearSampler : register(s0);
+SamplerState pointSampler : register(s1);
+Texture2D diffuseTexture : register(t0);
+Texture2D<float> depthTexture   : register(t1);
+
+static const float POINT_SIZE = 1.00f;
+static const float FADE_DISTANCE = 1.0f;
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float4 color : COLOR0;
+	float2 scale : TANGENT;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+	float4 color : COLOR0;
+	float2 uv : TEXCOORD0;
+	float2 screenPos : TEXCOORD1;
+	float2 depth : TEXCOORD2;
+	float2  pointSize  : PSIZE;
+};
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4 worldSpacePos = mul(float4(iV.position, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	oV.color = iV.color;
+	oV.uv = float2(0, 0);
+	
+	// uncomment to use scale
+	//oV.pointSize = iV.scale * POINT_SIZE;
+	oV.pointSize = float2(1, 1) * POINT_SIZE;
+
+	return oV;
+}
+
+static const float4 SPRITE_VERTEX_POSITIONS[4] = 
+{
+    float4(  0.5, -0.5, 0, 0),
+    float4(  0.5,  0.5, 0, 0),
+    float4( -0.5, -0.5, 0, 0),
+    float4( -0.5,  0.5, 0, 0),
+};
+
+static const float2 SPRITE_VERTEX_TEXCOORDS[4] = 
+{ 
+	float2(1, 0), 
+	float2(1, 1),
+	float2(0, 0),
+	float2(0, 1),
+};
+
+[maxvertexcount(4)]
+void GS( point VS_OUTPUT sprite[1], inout TriangleStream<VS_OUTPUT> triStream )
+{
+    VS_OUTPUT v;
+
+	v.color = sprite[0].color;
+	v.pointSize = sprite[0].pointSize;                      
+    
+	float4 aspectFactor = float4((projection[0][0] / projection[1][1]) * v.pointSize.x, 1.0 * v.pointSize.y, 0, 0);
+	
+	[unroll] for(int i = 0; i < 4; ++i)
+	{
+		v.position = sprite[0].position + SPRITE_VERTEX_POSITIONS[i] * aspectFactor;
+		v.screenPos = v.position.xy / v.position.w;
+		v.depth = v.position.zw;
+		v.uv = SPRITE_VERTEX_TEXCOORDS[i];
+		triStream.Append(v);
+	}
+	
+    triStream.RestartStrip();	
+}
+
+float4 PS(VS_OUTPUT input) : SV_Target0
+{
+	// soft particles fade:
+    float2 screenPos = 0.5*( (input.screenPos) + float2(1,1));
+    screenPos.y = 1 - screenPos.y;
+	
+    float particleDepth = input.depth.x / input.depth.y;
+
+	float depthSample = depthTexture.Sample(pointSampler, screenPos);
+        
+	float4 depthViewSample = mul(float4(input.screenPos, depthSample, 1), projectionInv );
+	float4 depthViewParticle = mul(float4(input.screenPos, particleDepth, 1), projectionInv);
+
+	float depthDiff = depthViewSample.z / depthViewSample.w - depthViewParticle.z / depthViewParticle.w;
+	if( depthDiff < 0 )
+		discard;
+            
+    float depthFade = saturate( depthDiff / FADE_DISTANCE );
+	
+	float4 textureColor = diffuseTexture.Sample(linearSampler, input.uv) * input.color;
+	textureColor.a *= depthFade;
+	return textureColor;
+}
\ No newline at end of file
diff --git a/NvBlast/samples/resources/shaders/unlit_transparent.hlsl b/NvBlast/samples/resources/shaders/unlit_transparent.hlsl
new file mode 100644
index 0000000..0c2158a
--- /dev/null
+++ b/NvBlast/samples/resources/shaders/unlit_transparent.hlsl
@@ -0,0 +1,27 @@
+#include "common_buffers.hlsl"
+
+struct VS_INPUT
+{
+	float3 position : POSITION0;
+	float3 normal : NORMAL0;
+};
+
+struct VS_OUTPUT
+{
+	float4 position : SV_POSITION;
+};
+
+VS_OUTPUT VS(VS_INPUT iV)
+{
+	VS_OUTPUT oV;
+
+	float4 worldSpacePos = mul(float4(iV.position, 1.0f), model);
+	oV.position = mul(worldSpacePos, viewProjection);
+
+	return oV;
+}
+
+float4 PS(VS_OUTPUT iV) : SV_Target0
+{
+	return defaultColor;
+}
\ No newline at end of file