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Fix T41023: Specific material cause bad render result, different on CPU/GPU

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Issue was caused by too much aggressive optimization, which skipped execution
of some nodes leading to an uninitialized memory read in SVM stack.
This commit is contained in:
Sergey Sharybin
2014-07-11 18:19:14 +06:00
parent 4633e655dc
commit 594ff72bfe
2 changed files with 59 additions and 20 deletions
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12
intern/cycles/render/svm.h
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@@ -123,15 +123,21 @@ protected:
/* single closure */
void find_dependencies(set<ShaderNode*>& dependencies,
const set<ShaderNode*>& done, ShaderInput *input);
const set<ShaderNode*>& done,
ShaderInput *input,
ShaderNode *skip_node = NULL);
void generate_node(ShaderNode *node, set<ShaderNode*>& done);
void generate_closure_node(ShaderNode *node, set<ShaderNode*>& done);
void generated_shared_closure_nodes(ShaderNode *node, set<ShaderNode*>& done,
void generated_shared_closure_nodes(ShaderNode *root_node, ShaderNode *node,
set<ShaderNode*>& done,
set<ShaderNode*>& closure_done, const set<ShaderNode*>& shared);
void generate_svm_nodes(const set<ShaderNode*>& nodes, set<ShaderNode*>& done);
/* multi closure */
void generate_multi_closure(ShaderNode *node, set<ShaderNode*>& done, set<ShaderNode*>& closure_done);
void generate_multi_closure(ShaderNode *root_node,
ShaderNode *node,
set<ShaderNode*>& done,
set<ShaderNode*>& closure_done);
/* compile */
void compile_type(Shader *shader, ShaderGraph *graph, ShaderType type);