Differential D15308 Diff 53409 source/blender/draw/engines/overlay/shaders/overlay_outline_prepass_curves_vert.glsl

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

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

				uint outline_colorid_get(void)
				{
				int flag = int(abs(ObjectInfo.w));
				bool is_active = (flag & DRW_BASE_ACTIVE) != 0;

				if (isTransform) {
				return 0u; /* colorTransform */
				}
				else if (is_active) {
				return 3u; /* colorActive */
				}
				else {
				return 1u; /* colorSelect */
				}

				return 0u;
				}

				/* Replace top 2 bits (of the 16bit output) by outlineId.
				* This leaves 16K different IDs to create outlines between objects.
				vec3 world_pos = point_object_to_world(pos);
				* SHIFT = (32 - (16 - 2)) */
				#define SHIFT 18u

				void main()
				{
				bool is_persp = (drw_view.winmat[3][3] == 0.0);
				float time, thickness;
				fclemUnsubmitted Done Inline Actions Use `drw_view.winmat` instead. This was recently refactored / mass renamed. fclem: Use `drw_view.winmat` instead. This was recently refactored / mass renamed.
				vec3 center_wpos, tan, binor;

				hair_get_center_pos_tan_binor_time(is_persp,
				ModelMatrixInverse,
				drw_view.viewinv[3].xyz,
				drw_view.viewinv[2].xyz,
				center_wpos,
				tan,
				binor,
				time,
				thickness);
				vec3 world_pos;
				if (hairThicknessRes > 1) {
				/* Calculate the thickness, thicktime, worldpos taken into account the outline. */
				float outline_width = point_world_to_ndc(center_wpos).w * 1.25 *
				drw_view.viewport_size_inverse.y * drw_view.wininv[1][1];
				thickness += outline_width;
				float thick_time = float(gl_VertexID % hairThicknessRes) / float(hairThicknessRes - 1);
				thick_time = thickness * (thick_time * 2.0 - 1.0);
				/* Take object scale into account.
				* NOTE: This only works fine with uniform scaling. */
				float scale = 1.0 / length(mat3(ModelMatrixInverse) * binor);
				world_pos = center_wpos + binor * thick_time * scale;
				}
				else {
				world_pos = center_wpos;
				}
				jbakkerAuthorUnsubmitted Done Inline Actions `0.5` jbakker:* `*0.5`

				gl_Position = point_world_to_ndc(world_pos);
				fclemUnsubmitted Done Inline Actions This whole part could be better commented. I am not sure what `d` is (I guess the screen space normal vector to the curve). I think you can have the same result by just copying what `hair_get_pos_tan_binor_time` does and just scale and/or clamp the `thick_time`. You can know the world space radius to clamp to by using (untested) `point_world_to_ndc(center_world_pos).w * minimum_radius_in_pixel * drw_view.viewport_size_inverse.y * drw_view.wininv[1][1]` or something like that. fclem: This whole part could be better commented. I am not sure what `d` is (I guess the screen space…

				#ifdef USE_GEOM
				vert.pos = point_world_to_view(world_pos);
				#endif

				/* Small bias to always be on top of the geom. */
				gl_Position.z -= 1e-3;

				jbakkerAuthorUnsubmitted Done Inline Actions Is this still in use? jbakker: Is this still in use?
				/* ID 0 is nothing (background) */
				interp.ob_id = uint(resource_handle + 1);

				/* Should be 2 bits only [0..3]. */
				uint outline_id = outline_colorid_get();

				/* Combine for 16bit uint target. */
				interp.ob_id = (outline_id << 14u) \| ((interp.ob_id << SHIFT) >> SHIFT);

				view_clipping_distances(world_pos);
				}