167 lines
5.8 KiB
Python
167 lines
5.8 KiB
Python
# SPDX-License-Identifier: GPL-2.0-or-later
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# ----------------------------------------------------------
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# support routines for render measures in final image
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# Author: Antonio Vazquez (antonioya)
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#
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# ----------------------------------------------------------
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# noinspection PyUnresolvedReferences
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import bpy
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import gpu
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import bgl
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# noinspection PyUnresolvedReferences
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import blf
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from os import path, remove
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from sys import exc_info
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# noinspection PyUnresolvedReferences
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import bpy_extras.image_utils as img_utils
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# noinspection PyUnresolvedReferences
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import bpy_extras.object_utils as object_utils
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# noinspection PyUnresolvedReferences
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from bpy_extras import view3d_utils
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from math import ceil
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from .measureit_geometry import *
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# -------------------------------------------------------------
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# Render image main entry point
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#
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# -------------------------------------------------------------
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def render_main(self, context, animation=False):
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# Save old info
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settings = bpy.context.scene.render.image_settings
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depth = settings.color_depth
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settings.color_depth = '8'
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# Get object list
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scene = context.scene
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objlist = context.scene.objects
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# --------------------
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# Get resolution
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# --------------------
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render_scale = scene.render.resolution_percentage / 100
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width = int(scene.render.resolution_x * render_scale)
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height = int(scene.render.resolution_y * render_scale)
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# --------------------------------------
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# Loop to draw all lines in Offsecreen
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# --------------------------------------
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offscreen = gpu.types.GPUOffScreen(width, height)
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view_matrix = Matrix([
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[2 / width, 0, 0, -1],
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[0, 2 / height, 0, -1],
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[0, 0, 1, 0],
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[0, 0, 0, 1]])
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with offscreen.bind():
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bgl.glClearColor(0.0, 0.0, 0.0, 0.0)
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bgl.glClear(bgl.GL_COLOR_BUFFER_BIT)
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gpu.matrix.reset()
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gpu.matrix.load_matrix(view_matrix)
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gpu.matrix.load_projection_matrix(Matrix.Identity(4))
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# -----------------------------
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# Loop to draw all objects
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# -----------------------------
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for myobj in objlist:
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if myobj.visible_get() is True:
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if 'MeasureGenerator' in myobj:
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op = myobj.MeasureGenerator[0]
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draw_segments(context, myobj, op, None, None)
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# -----------------------------
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# Loop to draw all debug
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# -----------------------------
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if scene.measureit_debug is True:
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selobj = bpy.context.selected_objects
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for myobj in selobj:
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if scene.measureit_debug_objects is True:
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draw_object(context, myobj, None, None)
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elif scene.measureit_debug_object_loc is True:
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draw_object(context, myobj, None, None)
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if scene.measureit_debug_vertices is True:
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draw_vertices(context, myobj, None, None)
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elif scene.measureit_debug_vert_loc is True:
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draw_vertices(context, myobj, None, None)
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if scene.measureit_debug_edges is True:
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draw_edges(context, myobj, None, None)
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if scene.measureit_debug_faces is True or scene.measureit_debug_normals is True:
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draw_faces(context, myobj, None, None)
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# -----------------------------
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# Draw a rectangle frame
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# -----------------------------
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if scene.measureit_rf is True:
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rfcolor = scene.measureit_rf_color
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rfborder = scene.measureit_rf_border
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rfline = scene.measureit_rf_line
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imm_set_line_width(rfline)
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x1 = rfborder
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x2 = width - rfborder
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y1 = int(ceil(rfborder / (width / height)))
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y2 = height - y1
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draw_rectangle((x1, y1), (x2, y2), rfcolor)
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buffer = bgl.Buffer(bgl.GL_BYTE, width * height * 4)
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bgl.glReadBuffer(bgl.GL_COLOR_ATTACHMENT0)
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bgl.glReadPixels(0, 0, width, height, bgl.GL_RGBA, bgl.GL_UNSIGNED_BYTE, buffer)
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offscreen.free()
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# -----------------------------
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# Create image
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# -----------------------------
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image_name = "measureit_output"
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if not image_name in bpy.data.images:
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bpy.data.images.new(image_name, width, height)
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image = bpy.data.images[image_name]
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image.scale(width, height)
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image.pixels = [v / 255 for v in buffer]
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# Saves image
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if image is not None and (scene.measureit_render is True or animation is True):
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ren_path = bpy.context.scene.render.filepath
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filename = "mit_frame"
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if len(ren_path) > 0:
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if ren_path.endswith(path.sep):
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initpath = path.realpath(ren_path) + path.sep
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else:
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(initpath, filename) = path.split(ren_path)
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ftxt = "%04d" % scene.frame_current
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outpath = path.realpath(path.join(initpath, filename + ftxt + ".png"))
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save_image(self, outpath, image)
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# restore default value
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settings.color_depth = depth
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# -------------------------------------
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# Save image to file
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# -------------------------------------
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def save_image(self, filepath, myimage):
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# noinspection PyBroadException
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try:
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# Save old info
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settings = bpy.context.scene.render.image_settings
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myformat = settings.file_format
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mode = settings.color_mode
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depth = settings.color_depth
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# Apply new info and save
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settings.file_format = 'PNG'
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settings.color_mode = "RGBA"
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settings.color_depth = '8'
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myimage.save_render(filepath)
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print("MeasureIt: Image " + filepath + " saved")
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# Restore old info
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settings.file_format = myformat
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settings.color_mode = mode
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settings.color_depth = depth
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except:
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print("Unexpected error:" + str(exc_info()))
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self.report({'ERROR'}, "MeasureIt: Unable to save render image")
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return
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