add flag DISABLE ANTI_ALIASING but it won't work in viewers (need to …

…change other calls of _resize_image for MacOS, similar to the PR linked to this commit

Similar to LeiaInc@f933ba1

mmatl#39

pyrender/constants.py

@@ -55,6 +55,10 @@ class RenderFlags(object):
     """Render the color buffer flat, with no lighting computations."""
     SEG = 8192
 
+    """Custom: disable anti-aliasing. """
+    # https://github.com/mmatl/pyrender/pull/175/files
+    DISABLE_ANTI_ALIASING = 16384
+
 
 class TextAlign:
     """Text alignment options for captions.

pyrender/renderer.py

@@ -3,6 +3,7 @@
 Author: Matthew Matl
 """
 import sys
+import os
 
 import numpy as np
 import PIL
@@ -335,7 +336,8 @@ def _forward_pass(self, scene, flags, seg_node_map=None):
 
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
 
-        if not bool(flags & RenderFlags.SEG):
+        if not bool(flags & RenderFlags.SEG) and not bool(flags & RenderFlags.DISABLE_ANTI_ALIASING):
+        # if not bool(flags & RenderFlags.SEG):
             glEnable(GL_MULTISAMPLE)
         else:
             glDisable(GL_MULTISAMPLE)
@@ -1009,7 +1011,7 @@ def _configure_forward_pass_viewport(self, flags):
 
         # If using offscreen render, bind main framebuffer
         if flags & RenderFlags.OFFSCREEN:
-            self._configure_main_framebuffer()
+            self._configure_main_framebuffer(flags)
             glBindFramebuffer(GL_DRAW_FRAMEBUFFER, self._main_fb_ms)
         else:
             glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0)
@@ -1051,7 +1053,7 @@ def _delete_shadow_framebuffer(self):
         if self._shadow_fb is not None:
             glDeleteFramebuffers(1, [self._shadow_fb])
 
-    def _configure_main_framebuffer(self):
+    def _configure_main_framebuffer(self, flags):
         # If mismatch with prior framebuffer, delete it
         if (self._main_fb is not None and
                 self.viewport_width != self._main_fb_dims[0] or
@@ -1089,15 +1091,27 @@ def _configure_main_framebuffer(self):
             # Generate multisample buffer
             self._main_cb_ms, self._main_db_ms = glGenRenderbuffers(2)
             glBindRenderbuffer(GL_RENDERBUFFER, self._main_cb_ms)
-            glRenderbufferStorageMultisample(
-                GL_RENDERBUFFER, 4, GL_RGBA,
-                self.viewport_width, self.viewport_height
-            )
+            if not bool(flags & RenderFlags.DISABLE_ANTI_ALIASING):
+                glRenderbufferStorageMultisample(
+                    GL_RENDERBUFFER, 4, GL_RGBA,
+                    self.viewport_width, self.viewport_height
+                )
+            else:
+                glRenderbufferStorage(
+                    GL_RENDERBUFFER, GL_RGBA,
+                    self.viewport_width, self.viewport_height
+                )
             glBindRenderbuffer(GL_RENDERBUFFER, self._main_db_ms)
-            glRenderbufferStorageMultisample(
-                GL_RENDERBUFFER, 4, GL_DEPTH_COMPONENT24,
-                self.viewport_width, self.viewport_height
-            )
+            if not bool(flags & RenderFlags.DISABLE_ANTI_ALIASING):
+                glRenderbufferStorageMultisample(
+                    GL_RENDERBUFFER, 4, GL_DEPTH_COMPONENT24,
+                    self.viewport_width, self.viewport_height
+                )
+            else:
+                glRenderbufferStorage(
+                    GL_RENDERBUFFER, GL_DEPTH_COMPONENT24,
+                    self.viewport_width, self.viewport_height
+                )
             self._main_fb_ms = glGenFramebuffers(1)
             glBindFramebuffer(GL_DRAW_FRAMEBUFFER, self._main_fb_ms)
             glFramebufferRenderbuffer(
@@ -1187,7 +1201,8 @@ def _read_main_framebuffer(self, scene, flags):
 
         # Resize for macos if needed
         if sys.platform == 'darwin':
-            color_im = self._resize_image(color_im, True)
+            # color_im = self._resize_image(color_im, True)
+            color_im = self._resize_image(color_im, antialias=not bool(flags & RenderFlags.DISABLE_ANTI_ALIASING))
 
         return color_im, depth_im