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Synchronizing batting viewport and svg dimensions

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Also switched to even more simple pattern to indicate insulation because of the vertex limit
This commit is contained in:
Andrej730
2023-03-02 15:50:13 +05:00
parent 588d6ccaaa
commit 4c58ca28e5
2 changed files with 69 additions and 33 deletions
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src/blenderbim/blenderbim/bim/module/drawing/data.py
+6 -4
View File
@@ -135,7 +135,9 @@ class DecoratorData:
return result
element = tool.Ifc.get_entity(obj)
if element:
result = ifcopenshell.util.element.get_pset(element, "BBIM_Batting", "Thickness") or 5.0
cls.data[obj.name] = result
return result
return 5.0
unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
thickness = ifcopenshell.util.element.get_pset(element, "BBIM_Batting", "Thickness")
thickness = thickness * unit_scale if thickness else 1.5
cls.data[obj.name] = thickness
return thickness
return 1.5
src/blenderbim/blenderbim/bim/module/drawing/decoration.py
+63 -29
View File
@@ -1355,8 +1355,6 @@ class BattingDecorator(BaseDecorator):
DEF_GLSL = (
BaseDecorator.DEF_GLSL
+ """
#define BREAK_LENGTH 32.0
#define BREAK_WIDTH 16.0
#define PATTERN_SEGMENT_LENGTH 2
"""
)
@@ -1364,11 +1362,18 @@ class BattingDecorator(BaseDecorator):
GEOM_GLSL = """
uniform vec2 winsize;
uniform float viewportDrawingScale;
uniform float batting_thickness;
uniform float batting_thickness_winspace;
layout(lines) in;
layout(line_strip, max_vertices=256) out;
void place_vert(vec4 ref_point, vec2 win_space_vert) {
vec4 win2clip = matWIN2CLIP();
vec4 p = ref_point + vec4(win_space_vert, 0, 0);
gl_Position = WIN2CLIP(p);
EmitVertex();
}
void main() {
vec4 clip2win = matCLIP2WIN();
vec4 win2clip = matWIN2CLIP();
@@ -1380,13 +1385,33 @@ class BattingDecorator(BaseDecorator):
vec4 gap = dir * 16.0; // TODO: never used?
float segment_width = batting_thickness / 2.5;
vec2 batting_dimensions = vec2(segment_width, batting_thickness);
// make sure to multiply by viewportDrawingScale
float segment_width = batting_thickness_winspace / 2.5;
vec2 batting_dimensions = vec2(segment_width, batting_thickness_winspace);
// need to multiply by viewportDrawingScale
// so the drawing will stay consistent on zoom in / zoom out
mat2 m_edge_space = mat2( dir.xy, dir.yx*vec2(1,-1) ) * viewportDrawingScale;
// but since we use winspace batting dimensions we skip it
mat2 m_edge_space = mat2( dir.xy, dir.yx*vec2(1,-1) );
vec2 pattern_segment_data[PATTERN_SEGMENT_LENGTH];
// simplied rectangle + cross version to indicate batting
place_vert(p0w, m_edge_space * ( vec2(0, 0.5) * batting_dimensions ) );
place_vert(p0w, m_edge_space * ( -vec2(0, 0.5) * batting_dimensions ) );
place_vert(p1w, m_edge_space * ( -vec2(0, 0.5) * batting_dimensions ) );
place_vert(p1w, m_edge_space * ( vec2(0, 0.5) * batting_dimensions ) );
place_vert(p0w, m_edge_space * ( vec2(0, 0.5) * batting_dimensions ) );
EndPrimitive();
place_vert(p0w, m_edge_space * ( -vec2(0, 0.5) * batting_dimensions ) );
place_vert(p1w, m_edge_space * ( vec2(0, 0.5) * batting_dimensions ) );
EndPrimitive();
place_vert(p0w, m_edge_space * ( vec2(0, 0.5) * batting_dimensions ) );
place_vert(p1w, m_edge_space * ( -vec2(0, 0.5) * batting_dimensions ) );
EndPrimitive();
// TODO: more fancy pattern? possibly use of frag shader?
// we're not using complicated patterns because of the
// hardware shader limit:
// Error: C6033: Hardware limitation reached, can only emit 256 vertices of this size
// vec2 pattern_segment_data[PATTERN_SEGMENT_LENGTH];
// simplified insulation pattern
// pattern_segment_data[0] = vec2(0, 1);
// pattern_segment_data[1] = vec2(0.5, 0.8);
@@ -1396,26 +1421,21 @@ class BattingDecorator(BaseDecorator):
// pattern_segment_data[5] = vec2(0.5, 0.8);
// pattern_segment_data[6] = vec2(1.0, 1.0);
// zigzag pattern
pattern_segment_data[0] = vec2(0, 1);
pattern_segment_data[1] = vec2(0, 0);
int segs = int( ceil( length(edge) / (batting_dimensions.x * viewportDrawingScale) ) ); // amount of segments
vec4 p;
vec2 p_base, p_cur_ver;
for (int i = 0; i < segs; i++) {
p_base = m_edge_space * (vec2(i, -0.5) * batting_dimensions);
for(int j=0; j<PATTERN_SEGMENT_LENGTH; j++) {
p_cur_ver = p_base + m_edge_space * (pattern_segment_data[j] * batting_dimensions);
p = p0w + vec4(p_cur_ver, 0, 0);
gl_Position = WIN2CLIP(p);
EmitVertex();
}
}
gl_Position = p1;
EmitVertex();
EndPrimitive();
// pattern_segment_data[0] = vec2(0, 1);
// pattern_segment_data[1] = vec2(0, 0);
// int segs = int( ceil( length(edge) / (batting_dimensions.x * viewportDrawingScale) ) ); // amount of segments
// vec4 p;
// vec2 p_base, p_cur_ver;
// for (int i = 0; i < segs; i++) {
// p_base = m_edge_space * (vec2(i, -0.5) * batting_dimensions);
// for(int j=0; j<PATTERN_SEGMENT_LENGTH; j++) {
// p_cur_ver = p_base + m_edge_space * (pattern_segment_data[j] * batting_dimensions);
// place_vert(p0w, p_cur_ver);
// }
// }
// gl_Position = p1;
// EmitVertex();
// EndPrimitive();
}
"""
@@ -1424,12 +1444,26 @@ class BattingDecorator(BaseDecorator):
verts, idxs = self.get_editmesh_geom(obj)
else:
verts, idxs = self.get_mesh_geom(obj)
# TODO: find the less ugly way to figure thickness
thickness = DecoratorData.get_batting_thickness(obj)
region = context.region
region3d = context.region_data
original_edge_length = (verts[1]-verts[0]).length
clipspace_verts = [region3d.perspective_matrix @ v for v in verts[:2]]
winspace_verts = [v * Vector([region.width/2, region.height/2, 1]) for v in clipspace_verts]
win_space_edge_length = (winspace_verts[1]-winspace_verts[0]).xy.length
k = win_space_edge_length / original_edge_length
winspace_thickness = k * thickness
self.draw_lines(
context,
obj,
verts[:2],
idxs,
extra_float_kwargs={"batting_thickness": DecoratorData.get_batting_thickness(obj)},
extra_float_kwargs={
"batting_thickness_winspace": winspace_thickness},
is_scale_dependant = False
)