Some code tweaks

examples/models/resources/shaders/glsl330/irradiance.fs

@@ -15,7 +15,7 @@ in vec3 fragPosition;
 uniform samplerCube environmentMap;
 
 // Constant values
-const float PI = 3.14159265359f;
+const float PI = 3.14159265359;
 
 // Output fragment color
 out vec4 finalColor;
@@ -31,8 +31,8 @@ void main()
     vec3 right = cross(up, normal);
     up = cross(normal, right);
 
-    float sampleDelta = 0.025f;
-    float nrSamples = 0.0f; 
+    float sampleDelta = 0.025;
+    float nrSamples = 0.0; 
 
     for (float phi = 0.0; phi < 2.0*PI; phi += sampleDelta)
     {

examples/models/resources/shaders/glsl330/pbr.vs

@@ -34,7 +34,7 @@ void main()
     mat3 normalMatrix = transpose(inverse(mat3(matModel)));
 
     // Calculate fragment position based on model transformations
-    fragPosition = vec3(matModel*vec4(vertexPosition, 1.0f));
+    fragPosition = vec3(matModel*vec4(vertexPosition, 1.0));
 
     // Send vertex attributes to fragment shader
     fragTexCoord = vertexTexCoord;

examples/models/resources/shaders/glsl330/prefilter.fs

@@ -18,7 +18,7 @@ uniform samplerCube environmentMap;
 uniform float roughness;
 
 // Constant values
-const float PI = 3.14159265359f;
+const float PI = 3.14159265359;
 
 // Output fragment color
 out vec4 finalColor;
@@ -35,7 +35,7 @@ float DistributionGGX(vec3 N, vec3 H, float roughness)
     float NdotH = max(dot(N, H), 0.0);
     float NdotH2 = NdotH*NdotH;
 
-    float nom   = a2;
+    float nom = a2;
     float denom = (NdotH2*(a2 - 1.0) + 1.0);
     denom = PI*denom*denom;
 
@@ -49,7 +49,7 @@ float RadicalInverse_VdC(uint bits)
      bits = ((bits & 0x33333333u) << 2u) | ((bits & 0xCCCCCCCCu) >> 2u);
      bits = ((bits & 0x0F0F0F0Fu) << 4u) | ((bits & 0xF0F0F0F0u) >> 4u);
      bits = ((bits & 0x00FF00FFu) << 8u) | ((bits & 0xFF00FF00u) >> 8u);
-     return float(bits) * 2.3283064365386963e-10; // / 0x100000000
+     return float(bits)*2.3283064365386963e-10; // / 0x100000000
 }
 
 vec2 Hammersley(uint i, uint N)
@@ -60,7 +60,7 @@ vec2 Hammersley(uint i, uint N)
 vec3 ImportanceSampleGGX(vec2 Xi, vec3 N, float roughness)
 {
 	float a = roughness*roughness;
-	float phi = 2.0 * PI * Xi.x;
+	float phi = 2.0*PI*Xi.x;
 	float cosTheta = sqrt((1.0 - Xi.y)/(1.0 + (a*a - 1.0)*Xi.y));
 	float sinTheta = sqrt(1.0 - cosTheta*cosTheta);