Differential D17089 Diff 60052 source/blender/draw/engines/overlay/shaders/overlay_volume_velocity_vert.glsl

Changeset View

Standalone View

source/blender/draw/engines/overlay/shaders/overlay_volume_velocity_vert.glsl


#pragma BLENDER_REQUIRE(common_view_lib.glsl)		#pragma BLENDER_REQUIRE(common_view_lib.glsl)

const vec3 corners[4] = vec3[4](vec3(0.0, 0.2, -0.5),
vec3(-0.2 * 0.866, -0.2 * 0.5, -0.5),
vec3(0.2 * 0.866, -0.2 * 0.5, -0.5),
vec3(0.0, 0.0, 0.5));

const int indices[12] = int[12](0, 1, 1, 2, 2, 0, 0, 3, 1, 3, 2, 3);

/* Straight Port from BKE_defvert_weight_to_rgb()		/* Straight Port from BKE_defvert_weight_to_rgb()
* TODO: port this to a color ramp. */		* TODO: port this to a color ramp. */
vec3 weight_to_color(float weight)		vec3 weight_to_color(float weight)
{		{
vec3 r_rgb = vec3(0.0);		vec3 r_rgb = vec3(0.0);
float blend = ((weight / 2.0) + 0.5);		float blend = ((weight / 2.0) + 0.5);

if (weight <= 0.25) { /* blue->cyan */		if (weight <= 0.25) { /* blue->cyan */
▲ Show 20 Lines • Show All 153 Lines • ▼ Show 20 Lines	#else
}		}
else if (length(vector) == 0.0) {		else if (length(vector) == 0.0) {
vector_length = 0.0;		vector_length = 0.0;
}		}

mat3 rot_mat = rotation_from_vector(vector);		mat3 rot_mat = rotation_from_vector(vector);

# ifdef USE_NEEDLE		# ifdef USE_NEEDLE
		/* NOTE(Metal): Declaring constant arrays in function scope to avoid increasing local shader
		* memory pressure. */
		const vec3 corners[4] = vec3[4](vec3(0.0, 0.2, -0.5),
		vec3(-0.2 * 0.866, -0.2 * 0.5, -0.5),
		vec3(0.2 * 0.866, -0.2 * 0.5, -0.5),
		vec3(0.0, 0.0, 0.5));

		const int indices[12] = int[12](0, 1, 1, 2, 2, 0, 0, 3, 1, 3, 2, 3);

vec3 rotated_pos = rot_mat * corners[indices[gl_VertexID % 12]];		vec3 rotated_pos = rot_mat * corners[indices[gl_VertexID % 12]];
pos += rotated_pos * vector_length * displaySize * cellSize;		pos += rotated_pos * vector_length * displaySize * cellSize;
# else		# else
vec3 rotated_pos = rot_mat * vec3(0.0, 0.0, 1.0);		vec3 rotated_pos = rot_mat * vec3(0.0, 0.0, 1.0);
pos += ((gl_VertexID % 2) == 1) ? rotated_pos * vector_length * displaySize * cellSize :		pos += ((gl_VertexID % 2) == 1) ? rotated_pos * vector_length * displaySize * cellSize :
vec3(0.0);		vec3(0.0);
# endif		# endif
#endif		#endif

vec3 world_pos = point_object_to_world(pos);		vec3 world_pos = point_object_to_world(pos);
gl_Position = point_world_to_ndc(world_pos);		gl_Position = point_world_to_ndc(world_pos);
}		}