/// <summary>
///
/// </summary>
/// <param name="mgr"></param>
/// <param name="rootSceneNode"></param>
/// <param name="method"></param>
public StaticBillboardSet(SceneManager mgr, SceneNode rootSceneNode, BillboardMethod method)
{
mSceneMgr = mgr;
mRenderMethod = method;
mVisible = true;
mFadeEnabled = false;
mBBOrigin = BillboardOrigin.Center;
//Fall back to Compatible if vertex shaders are not available
if (mRenderMethod == BillboardMethod.Accelerated)
{
RenderSystemCapabilities caps = Root.Singleton.RenderSystem.Capabilities;
if (!caps.HasCapability(Capabilities.VertexPrograms))
mRenderMethod = BillboardMethod.Compatible;
}
mNode = rootSceneNode.CreateChildSceneNode();
mEntityName = GetUniqueID("SBSEntity");
if (mRenderMethod == BillboardMethod.Accelerated)
{
//Accelerated billboard method
mEntity = null;
mUFactor = 1.0f;
mVFactor = 1.0f;
//Load vertex shader to align billboards to face the camera (if not loaded already)
if (++mSelfInstances == 1)
{
//First shader, simple camera-alignment
HighLevelGpuProgram vertexShader =
(HighLevelGpuProgram)HighLevelGpuProgramManager.Instance.GetByName("Sprite_vp");
if (vertexShader == null)
{
string vertexProg = string.Empty;
vertexProg =
"void Sprite_vp( \n" +
" float4 position : POSITION, \n" +
" float3 normal : NORMAL, \n" +
" float4 color : COLOR, \n" +
" float2 uv : TEXCOORD0, \n" +
" out float4 oPosition : POSITION, \n" +
" out float2 oUv : TEXCOORD0, \n" +
" out float4 oColor : COLOR, \n" +
" out float4 oFog : FOG, \n" +
" uniform float4x4 worldViewProj, \n" +
" uniform float uScroll, \n" +
" uniform float vScroll, \n" +
" uniform float4 preRotatedQuad[4] ) \n" +
"{ \n" +
//Face the camera
" float4 vCenter = float4( position.x, position.y, position.z, 1.0f ); \n" +
" float4 vScale = float4( normal.x, normal.y, normal.x, 1.0f ); \n" +
" oPosition = mul( worldViewProj, vCenter + (preRotatedQuad[normal.z] * vScale) ); \n" +
//Color
" oColor = color; \n" +
//UV Scroll
" oUv = uv; \n" +
" oUv.x += uScroll; \n" +
" oUv.y += vScroll; \n" +
//Fog
" oFog.x = oPosition.z; \n" +
"}";
vertexShader = HighLevelGpuProgramManager.Instance.CreateProgram(
"Sprite_vp",
ResourceGroupManager.DefaultResourceGroupName,
"cg", GpuProgramType.Vertex);
vertexShader.Source = vertexProg;
vertexShader.SetParam("profiles", "vs_1_1 arbvp1");
vertexShader.SetParam("entry_point", "Sprite_vp");
vertexShader.Load();
}
//Second shader, camera alignment and distance based fading
HighLevelGpuProgram vertexShader2 =
(HighLevelGpuProgram)HighLevelGpuProgramManager.Instance.GetByName("SpriteFade_vp");
if (vertexShader2 == null)
{
string vertexProg2 = string.Empty;
vertexProg2 =
"void SpriteFade_vp( \n" +
" float4 position : POSITION, \n" +
" float3 normal : NORMAL, \n" +
" float4 color : COLOR, \n" +
" float2 uv : TEXCOORD0, \n" +
" out float4 oPosition : POSITION, \n" +
" out float2 oUv : TEXCOORD0, \n" +
" out float4 oColor : COLOR, \n" +
" out float4 oFog : FOG, \n" +
" uniform float4x4 worldViewProj, \n" +
" uniform float3 camPos, \n" +
" uniform float fadeGap, \n" +
" uniform float invisibleDist, \n" +
" uniform float uScroll, \n" +
" uniform float vScroll, \n" +
" uniform float4 preRotatedQuad[4] ) \n" +
"{ \n" +
//Face the camera
" float4 vCenter = float4( position.x, position.y, position.z, 1.0f ); \n" +
" float4 vScale = float4( normal.x, normal.y, normal.x, 1.0f ); \n" +
" oPosition = mul( worldViewProj, vCenter + (preRotatedQuad[normal.z] * vScale) ); \n" +
" oColor.rgb = color.rgb; \n" +
//Fade out in the distance
" float dist = distance(camPos.xz, position.xz); \n" +
" oColor.a = (invisibleDist - dist) / fadeGap; \n" +
//UV scroll
" oUv = uv; \n" +
" oUv.x += uScroll; \n" +
" oUv.y += vScroll; \n" +
//Fog
" oFog.x = oPosition.z; \n" +
"}";
vertexShader2 = HighLevelGpuProgramManager.Instance.CreateProgram(
"SpriteFade_vp",
ResourceGroupManager.DefaultResourceGroupName,
"cg", GpuProgramType.Vertex);
vertexShader2.Source = vertexProg2;
vertexShader2.SetParam("profiles", "vs_1_1 arbvp1");
vertexShader2.SetParam("entry_point", "SpriteFade_vp");
vertexShader2.Load();
}
}
}
else
{
//Compatible billboard method
mFallbackSet = mSceneMgr.CreateBillboardSet(GetUniqueID("SBS"), 100);
mNode.AttachObject(mFallbackSet);
}
}
/// <summary>
///
/// </summary>
/// <param name="mgr"></param>
/// <param name="rootSceneNode"></param>
/// <param name="method"></param>
public StaticBillboardSet(SceneManager mgr, SceneNode rootSceneNode, BillboardMethod method)
{
mSceneMgr = mgr;
mRenderMethod = method;
mVisible = true;
mFadeEnabled = false;
mBBOrigin = BillboardOrigin.Center;
//Fall back to Compatible if vertex shaders are not available
if (mRenderMethod == BillboardMethod.Accelerated)
{
RenderSystemCapabilities caps = Root.Singleton.RenderSystem.Capabilities;
if (!caps.HasCapability(Capabilities.VertexPrograms))
{
mRenderMethod = BillboardMethod.Compatible;
}
}
mNode = rootSceneNode.CreateChildSceneNode();
mEntityName = GetUniqueID("SBSEntity");
if (mRenderMethod == BillboardMethod.Accelerated)
{
//Accelerated billboard method
mEntity = null;
mUFactor = 1.0f;
mVFactor = 1.0f;
//Load vertex shader to align billboards to face the camera (if not loaded already)
if (++mSelfInstances == 1)
{
//First shader, simple camera-alignment
HighLevelGpuProgram vertexShader =
(HighLevelGpuProgram)HighLevelGpuProgramManager.Instance.GetByName("Sprite_vp");
if (vertexShader == null)
{
string vertexProg = string.Empty;
vertexProg =
"void Sprite_vp( \n"+
" float4 position : POSITION, \n"+
" float3 normal : NORMAL, \n"+
" float4 color : COLOR, \n"+
" float2 uv : TEXCOORD0, \n"+
" out float4 oPosition : POSITION, \n"+
" out float2 oUv : TEXCOORD0, \n"+
" out float4 oColor : COLOR, \n"+
" out float4 oFog : FOG, \n"+
" uniform float4x4 worldViewProj, \n"+
" uniform float uScroll, \n"+
" uniform float vScroll, \n"+
" uniform float4 preRotatedQuad[4] ) \n"+
"{ \n"+
//Face the camera
" float4 vCenter = float4( position.x, position.y, position.z, 1.0f ); \n"+
" float4 vScale = float4( normal.x, normal.y, normal.x, 1.0f ); \n"+
" oPosition = mul( worldViewProj, vCenter + (preRotatedQuad[normal.z] * vScale) ); \n"+
//Color
" oColor = color; \n"+
//UV Scroll
" oUv = uv; \n"+
" oUv.x += uScroll; \n"+
" oUv.y += vScroll; \n"+
//Fog
" oFog.x = oPosition.z; \n"+
"}";
vertexShader = HighLevelGpuProgramManager.Instance.CreateProgram(
"Sprite_vp",
ResourceGroupManager.DefaultResourceGroupName,
"cg", GpuProgramType.Vertex);
vertexShader.Source = vertexProg;
vertexShader.SetParam("profiles", "vs_1_1 arbvp1");
vertexShader.SetParam("entry_point", "Sprite_vp");
vertexShader.Load();
}
//Second shader, camera alignment and distance based fading
HighLevelGpuProgram vertexShader2 =
(HighLevelGpuProgram)HighLevelGpuProgramManager.Instance.GetByName("SpriteFade_vp");
if (vertexShader2 == null)
{
string vertexProg2 = string.Empty;
vertexProg2 =
"void SpriteFade_vp( \n"+
" float4 position : POSITION, \n"+
" float3 normal : NORMAL, \n"+
" float4 color : COLOR, \n"+
" float2 uv : TEXCOORD0, \n"+
" out float4 oPosition : POSITION, \n"+
" out float2 oUv : TEXCOORD0, \n"+
" out float4 oColor : COLOR, \n"+
" out float4 oFog : FOG, \n"+
" uniform float4x4 worldViewProj, \n"+
" uniform float3 camPos, \n"+
" uniform float fadeGap, \n"+
" uniform float invisibleDist, \n" +
" uniform float uScroll, \n"+
" uniform float vScroll, \n"+
" uniform float4 preRotatedQuad[4] ) \n"+
"{ \n"+
//Face the camera
" float4 vCenter = float4( position.x, position.y, position.z, 1.0f ); \n"+
" float4 vScale = float4( normal.x, normal.y, normal.x, 1.0f ); \n"+
" oPosition = mul( worldViewProj, vCenter + (preRotatedQuad[normal.z] * vScale) ); \n"+
" oColor.rgb = color.rgb; \n"+
//Fade out in the distance
" float dist = distance(camPos.xz, position.xz); \n"+
" oColor.a = (invisibleDist - dist) / fadeGap; \n"+
//UV scroll
" oUv = uv; \n"+
" oUv.x += uScroll; \n"+
" oUv.y += vScroll; \n"+
//Fog
" oFog.x = oPosition.z; \n"+
"}";
vertexShader2 = HighLevelGpuProgramManager.Instance.CreateProgram(
"SpriteFade_vp",
ResourceGroupManager.DefaultResourceGroupName,
"cg", GpuProgramType.Vertex);
vertexShader2.Source = vertexProg2;
vertexShader2.SetParam("profiles", "vs_1_1 arbvp1");
vertexShader2.SetParam("entry_point", "SpriteFade_vp");
vertexShader2.Load();
}
}
}
else
{
//Compatible billboard method
mFallbackSet = mSceneMgr.CreateBillboardSet(GetUniqueID("SBS"), 100);
mNode.AttachObject(mFallbackSet);
}
}
