Fix particle to correctly display in the FOW, and to adapt slightly to sunColor settings (both on ARB and GLSL).

This was SVN commit r13287.

binaries/data/mods/public/shaders/arb/particle.fp

@@ -1,7 +1,23 @@
 !!ARBfp1.0
-TEMP tex;
+
+ATTRIB v_los = fragment.texcoord[1];
+PARAM sunColor = program.local[0];
+
+TEMP tex, losTex, color;
 
 TEX tex, fragment.texcoord[0], texture[0], 2D;
-MUL result.color, tex, fragment.color;
+
+TEMP temp;
+MOV temp, 0.5;
+
+ADD color.rgb, fragment.color, sunColor;
+MUL color.rgb, color, temp;
+
+MUL color.rgb, color, tex;
+
+// Multiply everything by the LOS texture
+TEX losTex, v_los, texture[1], 2D;
+MUL result.color.rgb, color, losTex.a;
+MUL result.color.a, tex, fragment.color;
 
 END

binaries/data/mods/public/shaders/arb/particle.vp

@@ -3,6 +3,8 @@ ATTRIB uv = vertex.texcoord[0];
 ATTRIB offset = vertex.texcoord[1];
 PARAM axis1 = state.matrix.modelview.row[0];
 PARAM axis2 = state.matrix.modelview.row[1];
+PARAM losTransform = program.local[0];
+
 TEMP position;
 
 MAD position.xyz, axis1, offset.x, vertex.position;
@@ -16,8 +18,8 @@ DP4 result.position.y, state.matrix.mvp.row[1], position;
 DP4 result.position.z, state.matrix.mvp.row[2], position;
 DP4 result.position.w, state.matrix.mvp.row[3], position;
 
-MOV result.texcoord, uv;
-
+MOV result.texcoord[0], uv;
 MOV result.color, vertex.color;
+MAD result.texcoord[1], vertex.position.xzzz, losTransform.x, losTransform.y;
 
 END

binaries/data/mods/public/shaders/arb/particle.xml

@@ -6,10 +6,13 @@
         <stream name="color"/>
         <stream name="uv0"/>
         <stream name="uv1"/>
+        <uniform name="losTransform" loc="0" type="vec2"/>
     </vertex>
 
     <fragment file="arb/particle.fp">
         <uniform name="baseTex" loc="0" type="sampler2D"/>
+		<uniform name="losTex" loc="1" type="sampler2D"/>
+        <uniform name="sunColor" loc="0" type="vec3"/>
     </fragment>
 
 </program>

binaries/data/mods/public/shaders/glsl/particle.fs

@@ -1,10 +1,13 @@
 #version 110
 
 uniform sampler2D baseTex;
+uniform sampler2D losTex;
 
 varying vec2 v_tex;
+varying vec2 v_los;
 varying vec4 v_color;
 
+uniform vec3 sunColor;
 uniform vec3 fogColor;
 uniform vec2 fogParams;
 
@@ -26,5 +29,11 @@ vec4 get_fog(vec4 color)
 
 void main()
 {
-	gl_FragColor = get_fog(texture2D(baseTex, v_tex) * v_color);
+	vec4 color = texture2D(baseTex, v_tex) * vec4((v_color.rgb + sunColor)/2.0,v_color.a);
+	
+    float los = texture2D(losTex, v_los).a;
+    los = los < 0.03 ? 0.0 : los;
+    color.rgb *= los;
+
+	gl_FragColor = get_fog(color);
 }

binaries/data/mods/public/shaders/glsl/particle.vs

@@ -1,8 +1,10 @@
 #version 110
 
 uniform mat4 transform;
+uniform vec2 losTransform;
 
 varying vec2 v_tex;
+varying vec2 v_los;
 varying vec4 v_color;
 
 attribute vec3 a_vertex;
@@ -19,7 +21,8 @@ void main()
   vec3 position = axis1*offset.x + axis1*offset.y + axis2*offset.x + axis2*-offset.y + a_vertex;
   
   gl_Position = transform * vec4(position, 1.0);
-  
+	
+  v_los = position.xz * losTransform.x + losTransform.y;
   v_tex = a_uv0;
   v_color = a_color;
 }

source/graphics/ParticleEmitter.cpp

@@ -20,6 +20,7 @@
 #include "ParticleEmitter.h"
 
 #include "graphics/LightEnv.h"
+#include "graphics/LOSTexture.h"
 #include "graphics/ParticleEmitterType.h"
 #include "graphics/ParticleManager.h"
 #include "graphics/TextureManager.h"
@@ -165,9 +166,16 @@ void CParticleEmitter::UpdateArrayData()
 
 void CParticleEmitter::Bind(const CShaderProgramPtr& shader)
 {
+	CLOSTexture& los = g_Renderer.GetScene().GetLOSTexture();
+	shader->BindTexture("losTex", los.GetTextureSmooth());
+	shader->Uniform("losTransform", los.GetTextureMatrix()[0], los.GetTextureMatrix()[12], 0.f, 0.f);
+	
+	const CLightEnv& lightEnv = g_Renderer.GetLightEnv();
+	shader->Uniform("sunColor", lightEnv.m_SunColor);
+	shader->Uniform("fogColor", lightEnv.m_FogColor);
+	shader->Uniform("fogParams", lightEnv.m_FogFactor, lightEnv.m_FogMax, 0.f, 0.f);
+
 	shader->BindTexture("baseTex", m_Type->m_Texture);
-	shader->Uniform("fogColor", g_Renderer.GetLightEnv().m_FogColor);
-	shader->Uniform("fogParams", g_Renderer.GetLightEnv().m_FogFactor, g_Renderer.GetLightEnv().m_FogMax, 0.f, 0.f);
 	pglBlendEquationEXT(m_Type->m_BlendEquation);
 	glBlendFunc(m_Type->m_BlendFuncSrc, m_Type->m_BlendFuncDst);
 }