Differential D6447 Diff 20923 source/blender/gpu/shaders/material/gpu_shader_material_noise.glsl

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source/blender/gpu/shaders/material/gpu_shader_material_noise.glsl

		/* clang-format off */
		#define FLOORFRAC(x, x_int, x_fract) { float x_floor = floor(x); x_int = int(x_floor); x_fract = x - x_floor; }
		/* clang-format on */

	/* Bilinear Interpolation:	/* Bilinear Interpolation:
	*	*
	* v2 v3	* v2 v3
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	float noise_perlin(float x)	float noise_perlin(float x)
	{	{
	int X;	int X;
	float fx = floorfrac(x, X);	float fx;

		FLOORFRAC(x, X, fx);

	float u = fade(fx);	float u = fade(fx);

	float r = mix(noise_grad(hash_int(X), fx), noise_grad(hash_int(X + 1), fx - 1.0), u);	float r = mix(noise_grad(hash_int(X), fx), noise_grad(hash_int(X + 1), fx - 1.0), u);
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	float noise_perlin(vec2 vec)	float noise_perlin(vec2 vec)
	{	{
	int X;	int X, Y;
	int Y;	float fx, fy;

	float fx = floorfrac(vec.x, X);	FLOORFRAC(vec.x, X, fx);
	float fy = floorfrac(vec.y, Y);	FLOORFRAC(vec.y, Y, fy);

	float u = fade(fx);	float u = fade(fx);
	float v = fade(fy);	float v = fade(fy);
Context not available.

	float noise_perlin(vec3 vec)	float noise_perlin(vec3 vec)
	{	{
	int X;	int X, Y, Z;
	int Y;	float fx, fy, fz;
	int Z;

	float fx = floorfrac(vec.x, X);	FLOORFRAC(vec.x, X, fx);
	float fy = floorfrac(vec.y, Y);	FLOORFRAC(vec.y, Y, fy);
	float fz = floorfrac(vec.z, Z);	FLOORFRAC(vec.z, Z, fz);

	float u = fade(fx);	float u = fade(fx);
	float v = fade(fy);	float v = fade(fy);
Context not available.

	float noise_perlin(vec4 vec)	float noise_perlin(vec4 vec)
	{	{
	int X;	int X, Y, Z, W;
	int Y;	float fx, fy, fz, fw;
	int Z;
	int W;	FLOORFRAC(vec.x, X, fx);
		FLOORFRAC(vec.y, Y, fy);
	float fx = floorfrac(vec.x, X);	FLOORFRAC(vec.z, Z, fz);
	float fy = floorfrac(vec.y, Y);	FLOORFRAC(vec.w, W, fw);
	float fz = floorfrac(vec.z, Z);
	float fw = floorfrac(vec.w, W);

	float u = fade(fx);	float u = fade(fx);
	float v = fade(fy);	float v = fade(fy);
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