Changeset 2425

Timestamp:

06/08/07 01:15:25 (17 years ago)

Author:

szirmay

Message:

 

Location:

GTP/trunk/App/Demos/Illum/Ogre/Media/materials/GTPParticles

Files:

• GTP_HPS.hlsl (modified) (2 diffs)
• GTP_Particles.material (modified) (3 diffs)
• GTP_Particles.particle (modified) (2 diffs)
• GTP_Particles.program (modified) (1 diff)
• GTP_Sprite.hlsl (modified) (1 diff)

GTP/trunk/App/Demos/Illum/Ogre/Media/materials/GTPParticles/GTP_HPS.hlsl

@@ -165 +165 @@
                                                 uniform sampler2D illumVolume : register(s2),
                                                 uniform float farplane,
-                                                uniform float nearplane                                         
+                                                uniform float nearplane,
+                                                uniform float4 color                                            
                                                         ) : COLOR
 {
-        float4 Color = 0;
+        float4 Color = IN.Color * color;
         float4 impostor = tex2D(Texture, IN.texCoord);
         float f = 1.0 - impostor.g;
@@ -192 +193 @@
         
 ///final color  
-        Color = float4(1, 1, 1, alpha) * IN.Color;
+        Color.a *= alpha;
+
     return Color; 
         

GTP/trunk/App/Demos/Illum/Ogre/Media/materials/GTPParticles/GTP_Particles.material

@@ -55 +55 @@
             param_named_auto farplane far_clip_distance   
             param_named_auto nearplane near_clip_distance
-            param_named color float4 1 1 1 1
+            param_named color float4 1 1 1 0.1
          }
          texture_unit
@@ -70 +70 @@
          {
            texture planck.tga
+         }
+    }
+   }
+}
+
+material GTP/SBB/Illum
+{ 
+   technique 
+   { 
+    pass 
+    {    
+        IllumTechniques
+        { 
+                RenderTechnique SphericalBillboard
+                {
+                        texture_unit_id         1                                       
+                }
+                RenderTechnique IllumVolume
+                {
+                    material GTP/HPS/Smoke_IllumVolume
+                    update_interval 1
+                    texture_unit_id 2
+                    resolution 128
+                    lightmatrix_param_name lightViewProj
+                }
+        }         
+        //scene_blend src_alpha one
+        scene_blend src_alpha one_minus_src_alpha
+        depth_write off
+        depth_check off 
+        vertex_program_ref GTP/Particles/SBB_Illum_VS
+        {       
+            param_named_auto worldView worldview_matrix
+            param_named_auto worldViewInv inverse_worldview_matrix                              
+            param_named_auto Proj projection_matrix
+            param_named_auto width viewport_width       
+            param_named_auto height viewport_height 
+        } 
+        fragment_program_ref  GTP/Particles/SBB_Illum_PS
+        { 
+            param_named_auto farplane far_clip_distance   
+            param_named_auto nearplane near_clip_distance
+            param_named color float4 1 1 1 0.5
+         }
+         texture_unit
+         {
+           anim_texture smokealpha.tga 32 2.0
+           //texture flare.png
+         }
+         //scene depth texture
+         texture_unit
+         {
+           filtering none
+         }      
+         texture_unit
+         {
+           
          }
     }
@@ -168 +225 @@
                         { 
                                 param_named_auto farplane far_clip_distance
-                                param_named_auto nearplane near_clip_distance                           
+                                param_named_auto nearplane near_clip_distance
+                                param_named color float4 1 1 1 0.5                              
                         }                       
                         //impostor texture

GTP/trunk/App/Demos/Illum/Ogre/Media/materials/GTPParticles/GTP_Particles.particle

@@ -43 +43 @@
         
         material                GTP/HPS/Smoke_L_Depth_Illum
+//      material GTP/HPS/Smoke_L_Depth
+
         particle_width  1.6
     particle_height 1.6
@@ -59 +61 @@
         angle           30
         emission_rate   3
+        time_to_live    10
+        direction       0 1 0
+        velocity        20
+        width           70       
+        height          70
+        depth           70
+    }
+    // Make em float upwards
+  //  affector LinearForce
+  //  {
+  //      force_vector      0 40 0
+  //      force_application add
+  //  }
+
+    affector ColourFader2
+    {
+       alpha1 +0.5
+       alpha2 -0.5
+       state_change 3
+    }
+}
+
+GTP/Smoke_Large
+{
+        renderer sprite
+        
+        //material              GTP/SBB/Basic
+        material                GTP/SBB/Illum
+
+        particle_width  72
+    particle_height 72
+    cull_each       false
+    quota           6000
+    sorted                      true
+    //billboard_type  point
+    
+    // Area emitter
+    emitter Box
+    {
+       colour 1 1 1 0
+       //colour_range_start 1 1 1 0
+           //colour_range_end 1 1 1 0
+
+        angle           30
+        emission_rate   60
         time_to_live    10
         direction       0 1 0

GTP/trunk/App/Demos/Illum/Ogre/Media/materials/GTPParticles/GTP_Particles.program

@@ -28 +28 @@
         entry_point SBB_Sprite_PS
         target ps_2_0
+}
+
+///spherical billboard sprite programs
+vertex_program GTP/Particles/SBB_Illum_VS hlsl
+{
+        source GTP_Sprite.hlsl
+        entry_point SBB_Sprite_Illum_VS
+        target vs_2_0
+} 
+
+fragment_program GTP/Particles/SBB_Illum_PS hlsl
+{
+        source GTP_Sprite.hlsl
+        entry_point SBB_Sprite_Illum_PS
+        target ps_3_0
 }
 

GTP/trunk/App/Demos/Illum/Ogre/Media/materials/GTPParticles/GTP_Sprite.hlsl

@@ -136 +136 @@
         Color.a *= alpha;
 /// address a color map (colors of fire eg.) with the alpha
-        Color.rgb = tex2D( PlanckMap, Color.aa).rgb;
+        //Color.rgb = tex2D( PlanckMap, Color.aa).rgb;
         
         return Color * color; 
 }
 
-
+struct SBB_ILLUM_VS_OUT
+{
+        float4 hPosition        : POSITION;
+        float4 texCoord         : TEXCOORD0;
+        float3 P                : TEXCOORD1;
+        float3 Q                : TEXCOORD2;
+        float r                 : TEXCOORD3;
+        float2 screenCoord      : TEXCOORD4;
+        float4 lightCoord       : TEXCOORD5;
+        float4 color            : COLOR0;
+};
+
+SBB_ILLUM_VS_OUT SBB_Sprite_Illum_VS (float4 position : POSITION,       
+                float4 texCoord : TEXCOORD0,
+                float4 color    : COLOR,
+                uniform float width,
+                uniform float height,
+                uniform float4x4 worldView,
+                uniform float4x4 Proj,
+                uniform float4x4 worldViewInv,
+                uniform float4x4 lightViewProj)
+{
+        SBB_ILLUM_VS_OUT OUT;
+ ///transform to camera space and create a sprite with vertex offset 
+        float2 offset = texCoord.zw;
+        float4 cPosition;   
+        float4 wPosition = position;    
+        cPosition = mul(worldView, wPosition);
+/// P is the particle sphere center     
+        OUT.P = cPosition.xyz;
+        OUT.P.z = - 1 * OUT.P.z;
+        cPosition.xy += offset;
+/// Q is the shaded point (it is moved backwards to avoid unwanted frontplane clipping)                         
+        OUT.Q = cPosition.xyz;  
+        OUT.Q.z = OUT.P.z;
+        OUT.r = abs(texCoord.z);   
+/// calculate screen space position 
+   OUT.hPosition = mul( Proj, cPosition );
+   OUT.screenCoord =  (OUT.hPosition.xy / OUT.hPosition.w + 1.0) / 2.0;
+   OUT.screenCoord.y = 1.0 - OUT.screenCoord.y;
+   OUT.screenCoord += float2(0.5/width, 0.5/height);   
+   
+   OUT.texCoord = texCoord;
+   OUT.color = color;
+
+   wPosition = mul(worldViewInv, cPosition);
+   OUT.lightCoord = mul(lightViewProj, wPosition);
+
+  return OUT;
+} 
+
+
+float4 SBB_Sprite_Illum_PS(SBB_ILLUM_VS_OUT IN ,
+        //      in screenCoord : VPOS,
+            uniform float nearplane,
+            uniform float farplane,
+            uniform float4 color,
+            uniform sampler2D colorTexture : register(s0),
+            uniform sampler2D DepthMap : register(s1),
+            uniform sampler2D illumVolume : register(s2)
+                ) : COLOR
+{
+        ///identify light volume slices and interpolation       
+        float2 lightCoord;
+        lightCoord = (IN.lightCoord.xy + float2(1.0, 1.0)) / 2.0;
+        lightCoord.y = 1.0 - lightCoord.y;
+        float z = IN.lightCoord.z / IN.lightCoord.w;
+                
+        float4 extintion = tex2D(illumVolume, lightCoord);
+        
+                float intensities[5];
+                intensities[0] = 1.0;
+                intensities[1] = extintion.r;
+                intensities[2] = extintion.g;
+                intensities[3] = extintion.b;
+                intensities[4] = extintion.a;
+                        
+                float3 start;
+                float3 end;
+                float3 temp = 1.0;
+                float t;
+                
+                float4 planes = float4(0.33, 0.5, 0.66, 1);
+                if(z < planes.x)
+                {
+                        start = intensities[0];
+                        end = intensities[1];
+                        t = z / planes.x;
+                        temp = lerp(start, end, t);                             
+                }
+                if(z > planes.x && z < planes.y)
+                {
+                        start = intensities[1];
+                        end = intensities[2];
+                        t = (z - planes.x) / (planes.y - planes.x);
+                        temp = lerp(start, end, t);                                     
+                }
+                if(z > planes.y && z < planes.z)
+                {
+                        start = intensities[2];
+                        end = intensities[3];
+                        t = (z - planes.y) / (planes.z - planes.y);
+                        temp = lerp(start, end, t);                             
+                }
+                if(z > planes.z)
+                {
+                        start = intensities[3];
+                        end = intensities[4];
+                        t = (z - planes.z) / (planes.a - planes.z);
+                        temp = lerp(start, end, t);                                     
+                }
+                IN.color.rgb *= temp;
+///////////////
+        float4 Color = IN.color;
+        float alpha = 0;
+        
+/// get the depth values from the depthMap and calculate ray length in sphere   
+        float d = length( IN.Q - IN.P );
+        float Zs;
+        if( d < IN.r )
+        {
+         
+         float w = sqrt( IN.r * IN.r - d * d );
+         alpha = w / IN.r;
+         alpha *= pow( (IN.r-d) / IN.r , 2);
+        
+         float F = IN.Q.z - w;
+         float B = IN.Q.z + w; 
+         
+
+         Zs = tex2D( DepthMap, IN.screenCoord ).r;
+         if(Zs == 0) Zs = farplane;
+         float ds = min( Zs, B ) - max( nearplane, F );  
+        // float ds = min( Zs, B ) - F;  
+         alpha *=  ds / w * 0.5;
+        
+        
+        }
+/// fetch opacity from a texture
+        Color.a *= tex2D( colorTexture, IN.texCoord.xy).r ;
+        //Color.a *= IN.color.a;
+        Color.a *= alpha;
+/// address a color map (colors of fire eg.) with the alpha
+        //Color.rgb = tex2D( PlanckMap, Color.aa).rgb;
+        
+        return Color * color; 
+}
+
+