Differential D3719 Diff 11915 source/blender/gpu/intern/gpu_material.c

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source/blender/gpu/intern/gpu_material.c

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	} GPUColorBandBuilder;	} GPUColorBandBuilder;

	struct GPUMaterial {	struct GPUMaterial {
	Scene scene; / DEPRECATED was only usefull for lamps */	Scene scene; / DEPRECATED was only useful for lamps */
	Material *ma;	Material *ma;

	/* material for mesh surface, worlds or something else.	/* material for mesh surface, worlds or something else.
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	/* Functions */	/* Functions */

	/* Returns the adress of the future pointer to coba_tex */	/* Returns the address of the future pointer to coba_tex */
	GPUTexture *gpu_material_ramp_texture_row_set(GPUMaterial mat, int size, float pixels, float row)	GPUTexture *gpu_material_ramp_texture_row_set(GPUMaterial mat, int size, float pixels, float row)
	{	{
	/* In order to put all the colorbands into one 1D array texture,	/* In order to put all the colorbands into one 1D array texture,
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	/* Distance from surface. */	/* Distance from surface. */
	float d = kd->max_radius * ((float)i + 0.00001f) / ((float)resolution);	float d = kd->max_radius * ((float)i + 0.00001f) / ((float)resolution);

	/* For each distance d we compute the radiance incomming from an hypothetic parallel plane. */	/* For each distance d we compute the radiance incoming from an hypothetic parallel plane. */
	/* Compute radius of the footprint on the hypothetic plane */	/* Compute radius of the footprint on the hypothetic plane */
	float r_fp = sqrtf(kd->max_radius * kd->max_radius - d * d);	float r_fp = sqrtf(kd->max_radius * kd->max_radius - d * d);
	float r_step = r_fp / INTEGRAL_RESOLUTION;	float r_step = r_fp / INTEGRAL_RESOLUTION;
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	profile[1] = eval_profile(dist, falloff_type, sharpness, kd->param[1]);	profile[1] = eval_profile(dist, falloff_type, sharpness, kd->param[1]);
	profile[2] = eval_profile(dist, falloff_type, sharpness, kd->param[2]);	profile[2] = eval_profile(dist, falloff_type, sharpness, kd->param[2]);

	/* Since the profile and configuration are radially symetrical we	/* Since the profile and configuration are radially symmetrical we
	* can just evaluate it once and weight it accordingly */	* can just evaluate it once and weight it accordingly */
	float r_next = r + r_step;	float r_next = r + r_step;
	float disk_area = (M_PI * r_next * r_next) - (M_PI * r * r);	float disk_area = (M_PI * r_next * r_next) - (M_PI * r * r);
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