Code cleanup / Cycles:

* Remove code for the unused Wave texture variations. 

We have quite some unused code in the texture area, I guess it doesn't harm to clean a bit up here. 
We can always get the code back from SVN if we need something.

intern/cycles/kernel/shaders/node_texture.h

@@ -198,31 +198,6 @@ float noise_basis_hard(point p, string basis, int hard)
 	return (hard) ? fabs(2.0 * t - 1.0) : t;
 }
 
-/* Waves */
-
-float noise_wave(string wave, float a)
-{
-	if (wave == "Sine") {
-		return 0.5 + 0.5 * sin(a);
-	}
-	if (wave == "Saw") {
-		float b = 2 * M_PI;
-		int n = (int)(a / b);
-		a -= n * b;
-		if (a < 0) a += b;
-
-		return a / b;
-	}
-	if (wave == "Tri") {
-		float b = 2 * M_PI;
-		float rmax = 1.0;
-
-		return rmax - 2.0 * fabs(floor((a * (1.0 / b)) + 0.5) - (a * (1.0 / b)));
-	}
-
-	return 0.0;
-}
-
 /* Turbulence */
 
 float noise_turbulence(point p, string basis, float details, int hard)

intern/cycles/kernel/shaders/node_wave_texture.osl

@@ -39,7 +39,7 @@ float wave(point p, float scale, string type, float detail, float distortion, fl
 	if (distortion != 0.0) {
 		n = n + (distortion * noise_turbulence(p * dscale, "Perlin", detail, 0));
 	}
-	return noise_wave("Sine", n);
+	return 0.5 + 0.5 * sin(n);
 }
 
 shader node_wave_texture(

intern/cycles/kernel/svm/svm_texture.h

@@ -177,31 +177,6 @@ __device float noise_basis_hard(float3 p, NodeNoiseBasis basis, int hard)
 	return (hard)? fabsf(2.0f*t - 1.0f): t;
 }
 
-/* Waves */
-
-__device float noise_wave(NodeWaveBasis wave, float a)
-{
-	if(wave == NODE_WAVE_SINE) {
-		return 0.5f + 0.5f * sinf(a);
-	}
-	else if(wave == NODE_WAVE_SAW) {
-		float b = M_2PI_F;
-		int n = float_to_int(a / b);
-		a -= n*b;
-		if(a < 0.0f) a += b;
-
-		return a / b;
-	}
-	else if(wave == NODE_WAVE_TRI) {
-		float b = M_2PI_F;
-		float rmax = 1.0f;
-
-		return rmax - 2.0f*fabsf(floorf((a*(1.0f/b))+0.5f) - (a*(1.0f/b)));
-	}
-
-	return 0.0f;
-}
-
 /* Turbulence */
 
 __device_noinline float noise_turbulence(float3 p, NodeNoiseBasis basis, float octaves, int hard)

intern/cycles/kernel/svm/svm_types.h

@@ -274,12 +274,6 @@ typedef enum NodeNoiseBasis {
 	NODE_NOISE_CELL_NOISE
 } NodeNoiseBasis;
 
-typedef enum NodeWaveBasis {
-	NODE_WAVE_SINE,
-	NODE_WAVE_SAW,
-	NODE_WAVE_TRI
-} NodeWaveBasis;
-
 typedef enum NodeMusgraveType {
 	NODE_MUSGRAVE_MULTIFRACTAL,
 	NODE_MUSGRAVE_FBM,

intern/cycles/kernel/svm/svm_wave.h

@@ -22,21 +22,19 @@ CCL_NAMESPACE_BEGIN
 
 __device_noinline float svm_wave(NodeWaveType type, float3 p, float scale, float detail, float distortion, float dscale)
 {
-	float w, n;
+	float n;
 
 	p *= scale;
 
 	if(type == NODE_WAVE_BANDS)
 		n = (p.x + p.y + p.z) * 10.0f;
-	else /* if(type == NODE_WAVE_RINGS) */
+	else /* NODE_WAVE_RINGS */
 		n = len(p) * 20.0f;
 	
 	if(distortion != 0.0f)
 		n += distortion * noise_turbulence(p*dscale, NODE_NOISE_PERLIN, detail, 0);
 
-	w = noise_wave(NODE_WAVE_SINE, n);
+	return 0.5f + 0.5f * sinf(n);
-
-	return w;
 }
 
 __device void svm_node_tex_wave(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node, int *offset)