cleaned up particlefire example

really dug into example to learn and just _leaving the example better then I found it_ but cleaning up some unused values and swizzle redudency in shaders. Tested on desktop and android

data/shaders/particlefire/normalmap.frag

@@ -11,8 +11,8 @@ layout (binding = 2) uniform sampler2D sNormalHeightMap;
 layout (location = 0) in vec2 inUV;
 layout (location = 1) in vec3 inLightVec;
 layout (location = 2) in vec3 inLightVecB;
-layout (location = 5) in vec3 inLightDir;
-layout (location = 6) in vec3 inViewVec;
+layout (location = 3) in vec3 inLightDir;
+layout (location = 4) in vec3 inViewVec;
 
 layout (location = 0) out vec4 outFragColor;
 
@@ -41,4 +41,4 @@ void main(void)
 	float specular = pow(max(dot(view, reflectDir), 0.0), 4.0);
 	
 	outFragColor = vec4((rgb * atten + (diffuse * rgb + 0.5 * specular * specularColor.rgb)) * atten, 1.0);   
-}
+}

data/shaders/particlefire/normalmap.vert

@@ -15,20 +15,18 @@ layout (binding = 0) uniform UBO
 	mat4 model;
 	mat4 normal;
 	vec4 lightPos;
-	vec4 cameraPos;
 } ubo;
 
 out gl_PerVertex
 {
 	vec4 gl_Position;
-	float gl_PointSize;
 };
 
 layout (location = 0) out vec2 outUV;
 layout (location = 1) out vec3 outLightVec;
 layout (location = 2) out vec3 outLightVecB;
-layout (location = 5) out vec3 outLightDir;
-layout (location = 6) out vec3 outViewVec;
+layout (location = 3) out vec3 outLightDir;
+layout (location = 4) out vec3 outViewVec;
 
 void main(void) 
 {
@@ -42,18 +40,18 @@ void main(void)
 	tbnMatrix[1] =  mat3(ubo.normal) * inBiTangent;
 	tbnMatrix[2] =  mat3(ubo.normal) * inNormal;
 
-	outLightVec.xyz = vec3(ubo.lightPos.xyz - vertexPosition.xyz) * tbnMatrix;
+	outLightVec.xyz = vec3(ubo.lightPos.xyz - vertexPosition) * tbnMatrix;
 
-	vec3 lightDist = ubo.lightPos.xyz - inPos.xyz;
-	outLightVecB.x = dot(inTangent.xyz, lightDist);
-	outLightVecB.y = dot(inBiTangent.xyz, lightDist);
+	vec3 lightDist = ubo.lightPos.xyz - inPos;
+	outLightVecB.x = dot(inTangent, lightDist);
+	outLightVecB.y = dot(inBiTangent, lightDist);
 	outLightVecB.z = dot(inNormal, lightDist);
 
-	outViewVec.x = dot(inTangent, inPos.xyz);
-	outViewVec.y = dot(inBiTangent, inPos.xyz);
-	outViewVec.z = dot(inNormal, inPos.xyz);
+	outViewVec.x = dot(inTangent, inPos);
+	outViewVec.y = dot(inBiTangent, inPos);
+	outViewVec.z = dot(inNormal, inPos);
 
 	outUV = inUV;
 	
 	gl_Position = ubo.projection * ubo.model * vec4(inPos, 1.0);
-}
+}

data/shaders/particlefire/particle.frag

@@ -11,7 +11,6 @@ layout (location = 1) in float inAlpha;
 layout (location = 2) in flat int inType;
 layout (location = 3) in float inRotation;
 
-
 layout (location = 0) out vec4 outFragColor;
 
 void main () 
@@ -43,4 +42,4 @@ void main ()
 	}
 	
 	outFragColor.rgb = color.rgb * inColor.rgb * alpha;	
-}
+}

data/shaders/particlefire/particle.vert

@@ -44,6 +44,5 @@ void main ()
 	// Scale particle size depending on camera projection
 	vec4 eyePos = ubo.modelview * vec4(inPos.xyz, 1.0);
 	vec4 projectedCorner = ubo.projection * vec4(0.5 * spriteSize, 0.5 * spriteSize, eyePos.z, eyePos.w);
-	gl_PointSize = ubo.viewportDim.x * projectedCorner.x / projectedCorner.w;
-	
+	gl_PointSize = ubo.viewportDim.x * projectedCorner.x / projectedCorner.w;	
 }

examples/particlefire/particlefire.cpp

@@ -106,7 +106,6 @@ public:
 		glm::mat4 model;
 		glm::mat4 normal;
 		glm::vec4 lightPos = glm::vec4(0.0f, 0.0f, 0.0f, 0.0f);
-		glm::vec4 cameraPos;
 	} uboEnv;
 
 	struct {
@@ -709,7 +708,6 @@ public:
 		uboEnv.projection = uboVS.projection;
 		uboEnv.model = uboVS.model;
 		uboEnv.normal = glm::inverseTranspose(uboEnv.model);
-		uboEnv.cameraPos = glm::vec4(0.0, 0.0, zoom, 0.0);
 		memcpy(uniformBuffers.environment.mapped, &uboEnv, sizeof(uboEnv));
 	}