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Fix #108591: Handle null material adding paint slot #108592

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YimingWu merged 5 commits from ChengduLittleA/blender:fix-108591 into blender-v3.6-release 2023-06-06 04:13:08 +02:00
Conversation 6 Commits 5 Files Changed 1 +8 -4
YimingWu commented 2023-06-05 08:07:16 +02:00
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When adding a texture paint slot to an object, the object could have no
material, this patch handles that so it won't need to call
default_paint_slot_color_get to get color from the material before
calling the operator.

When adding a texture paint slot to an object, the object could have no material, this patch handles that so it won't need to call `default_paint_slot_color_get` to get color from the material before calling the operator.
YimingWu added the
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Sculpt, Paint & Texture
 label 2023-06-05 08:07:16 +02:00
Pratik Borhade requested review from Joseph Eagar 2023-06-05 10:42:21 +02:00
Philipp Oeser commented 2023-06-05 11:47:43 +02:00
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Crash was caused by 859c0d9edf btw. @HooglyBoogly

Crash was caused by 859c0d9edf btw. @HooglyBoogly
Iliya Katushenock commented 2023-06-05 11:54:59 +02:00
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Hay, as i can see, default_paint_slot_color_get already has branch to solve
null material / node tree case. This fix just should start to use this case, instead
another checking with new constant value.

Hay, as i can see, `default_paint_slot_color_get` already has branch to solve null material / node tree case. This fix just should start to use this case, instead another checking with new constant value.
YimingWu commented 2023-06-05 12:22:57 +02:00
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Good point. I changed it to set default values in default_paint_slot_color_get.

Good point. I changed it to set default values in `default_paint_slot_color_get`.
Iliya Katushenock commented 2023-06-05 12:25:33 +02:00
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I mean something like

      bNodeTree *ntree = nullptr;
      bNode *in_node = nullptr;
      if (me != nullptr && ma->nodetree != nullptr) {
        ma->nodetree->ensure_topology_cache();
        const blender::Span<bNode *> nodes = ma->nodetree->nodes_by_type("ShaderNodeBsdfPrincipled");
        in_node = nodes.is_empty() ? nullptr : nodes.first();
      }
      if (!in_node) {
        /* An existing material or Principled BSDF node could not be found.
         * Copy default color values from a default Principled BSDF instead. */
        ntree = ntreeAddTree(nullptr, "Temporary Shader Nodetree", ntreeType_Shader->idname);
        in_node = nodeAddStaticNode(nullptr, ntree, SH_NODE_BSDF_PRINCIPLED);
      }
I mean something like ```Cpp bNodeTree *ntree = nullptr; bNode *in_node = nullptr; if (me != nullptr && ma->nodetree != nullptr) { ma->nodetree->ensure_topology_cache(); const blender::Span<bNode *> nodes = ma->nodetree->nodes_by_type("ShaderNodeBsdfPrincipled"); in_node = nodes.is_empty() ? nullptr : nodes.first(); } if (!in_node) { /* An existing material or Principled BSDF node could not be found. * Copy default color values from a default Principled BSDF instead. */ ntree = ntreeAddTree(nullptr, "Temporary Shader Nodetree", ntreeType_Shader->idname); in_node = nodeAddStaticNode(nullptr, ntree, SH_NODE_BSDF_PRINCIPLED); } ```
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Hans Goudey commented 2023-06-05 14:08:38 +02:00
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This PR should probably target 3.6 instead of main.

This PR should probably target 3.6 instead of main.
YimingWu commented 2023-06-05 15:15:42 +02:00
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thanks @mod_moder.

thanks @mod_moder.
YimingWu changed title from Fix #108591: Handle `mat==null` adding paint slot to Fix #108591: Handle `mat==null` adding paint slot 2023-06-05 15:15:55 +02:00
ChengduLittleA changed target branch from main to blender-v3.6-release 2023-06-05 15:15:57 +02:00
YimingWu changed title from Fix #108591: Handle `mat==null` adding paint slot to Fix #108591: Handle `mat==null` adding paint slot 2023-06-05 15:16:44 +02:00
ChengduLittleA changed target branch from blender-v3.6-release to main 2023-06-05 15:16:46 +02:00
YimingWu force-pushed fix-108591 from 1f1bdb9683 to 22baaaf987 2023-06-05 15:20:12 +02:00 Compare
YimingWu changed title from Fix #108591: Handle `mat==null` adding paint slot to Fix #108591: Handle `mat==null` adding paint slot 2023-06-05 15:20:20 +02:00
ChengduLittleA changed target branch from main to blender-v3.6-release 2023-06-05 15:20:22 +02:00
Hans Goudey reviewed 2023-06-05 16:19:51 +02:00
source/blender/editors/sculpt_paint/paint_image_proj.cc Outdated
@ -6643,0 +6641,4 @@
if (ma && ma->nodetree) {
ma->nodetree->ensure_topology_cache();
const blender::Span<bNode *> nodes = ma->nodetree->nodes_by_type("ShaderNodeBsdfPrincipled");
nodes.is_empty() ? nullptr : nodes.first();
Hans Goudey commented 2023-06-05 16:19:51 +02:00
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Am I missing something? nodes.is_empty() ? nullptr : nodes.first(); doesn't seem to do anything

Am I missing something? `nodes.is_empty() ? nullptr : nodes.first();` doesn't seem to do anything
ChengduLittleA marked this conversation as resolved
YimingWu added 1 commit 2023-06-06 03:50:48 +02:00
Hans Goudey approved these changes 2023-06-06 03:56:04 +02:00
Hans Goudey changed title from Fix #108591: Handle `mat==null` adding paint slot to Fix #108591: Handle null material adding paint slot 2023-06-06 03:56:25 +02:00
YimingWu merged commit 8a0a9ec0c3 into blender-v3.6-release 2023-06-06 04:13:08 +02:00
YimingWu deleted branch fix-108591 2023-06-06 04:13:11 +02:00
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