3DPrinting/PrusaSlicer-NonPlainar
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Layers editing overlay rendering modified to use a texture drawn on a quad lying in a plane parallel to the camera viewport

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This commit is contained in:
Enrico Turri 2019-06-14 10:55:56 +02:00
parent 821ca0e36a
commit ed4b71eb15
2 changed files with 18 additions and 13 deletions
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9
resources/shaders/variable_layer_height.vs
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@ -15,6 +15,7 @@ const vec3 LIGHT_FRONT_DIR = vec3(0.6985074, 0.1397015, 0.6985074);
#define INTENSITY_AMBIENT 0.3
uniform mat4 volume_world_matrix;
uniform float object_max_z;
// x = tainted, y = specular;
varying vec2 intensity;
@ -42,6 +43,12 @@ void main()
intensity.x += NdotL * LIGHT_FRONT_DIFFUSE;
// Scaled to widths of the Z texture.
object_z = (volume_world_matrix * gl_Vertex).z;
if (object_max_z > 0.0)
// when rendering the overlay
object_z = object_max_z * gl_MultiTexCoord0.y;
else
// when rendering the volumes
object_z = (volume_world_matrix * gl_Vertex).z;
gl_Position = ftransform();
}

22
src/slic3r/GUI/GLCanvas3D.cpp
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@ -63,11 +63,6 @@ static const float GROUND_Z = -0.02f;
static const float GIZMO_RESET_BUTTON_HEIGHT = 22.0f;
static const float GIZMO_RESET_BUTTON_WIDTH = 70.f;
static const float UNIT_MATRIX[] = { 1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f };
static const float DEFAULT_BG_DARK_COLOR[3] = { 0.478f, 0.478f, 0.478f };
static const float DEFAULT_BG_LIGHT_COLOR[3] = { 0.753f, 0.753f, 0.753f };
static const float ERROR_BG_DARK_COLOR[3] = { 0.478f, 0.192f, 0.039f };
@ -452,8 +447,7 @@ void GLCanvas3D::LayersEditing::_render_active_object_annotations(const GLCanvas
m_shader.set_uniform("z_texture_row_to_normalized", 1.0f / (float)m_layers_texture.height);
m_shader.set_uniform("z_cursor", m_object_max_z * this->get_cursor_z_relative(canvas));
m_shader.set_uniform("z_cursor_band_width", band_width);
// The shader requires the original model coordinates when rendering to the texture, so we pass it the unit matrix
m_shader.set_uniform("volume_world_matrix", UNIT_MATRIX);
m_shader.set_uniform("object_max_z", m_object_max_z);
glsafe(::glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
glsafe(::glBindTexture(GL_TEXTURE_2D, m_z_texture_id));
@ -466,10 +460,10 @@ void GLCanvas3D::LayersEditing::_render_active_object_annotations(const GLCanvas
::glBegin(GL_QUADS);
::glNormal3f(0.0f, 0.0f, 1.0f);
::glVertex3f(l, b, 0.0f);
::glVertex3f(r, b, 0.0f);
::glVertex3f(r, t, m_object_max_z);
::glVertex3f(l, t, m_object_max_z);
::glTexCoord2f(0.0f, 0.0f); ::glVertex2f(l, b);
::glTexCoord2f(1.0f, 0.0f); ::glVertex2f(r, b);
::glTexCoord2f(1.0f, 1.0f); ::glVertex2f(r, t);
::glTexCoord2f(0.0f, 1.0f); ::glVertex2f(l, t);
glsafe(::glEnd());
glsafe(::glBindTexture(GL_TEXTURE_2D, 0));
@ -522,6 +516,7 @@ void GLCanvas3D::LayersEditing::render_volumes(const GLCanvas3D& canvas, const G
GLint z_cursor_id = ::glGetUniformLocation(shader_id, "z_cursor");
GLint z_cursor_band_width_id = ::glGetUniformLocation(shader_id, "z_cursor_band_width");
GLint world_matrix_id = ::glGetUniformLocation(shader_id, "volume_world_matrix");
GLint object_max_z_id = ::glGetUniformLocation(shader_id, "object_max_z");
glcheck();
if (z_to_texture_row_id != -1 && z_texture_row_to_normalized_id != -1 && z_cursor_id != -1 && z_cursor_band_width_id != -1 && world_matrix_id != -1)
@ -548,7 +543,10 @@ void GLCanvas3D::LayersEditing::render_volumes(const GLCanvas3D& canvas, const G
// Render the object using the layer editing shader and texture.
if (! glvolume->is_active || glvolume->composite_id.object_id != this->last_object_id || glvolume->is_modifier)
continue;
glsafe(::glUniformMatrix4fv(world_matrix_id, 1, GL_FALSE, (const GLfloat*)glvolume->world_matrix().cast<float>().data()));
if (world_matrix_id != -1)
glsafe(::glUniformMatrix4fv(world_matrix_id, 1, GL_FALSE, (const GLfloat*)glvolume->world_matrix().cast<float>().data()));
if (object_max_z_id != -1)
glsafe(::glUniform1f(object_max_z_id, GLfloat(0)));
glvolume->render();
}
// Revert back to the previous shader.