math: fixed power function

Corrected shader code and fixed bug in widget bridge that reported an incorrect index.
2020-07-17 12:33:28 +10:00
parent 662d66ad10
commit 6309b8fbb7
2 changed files with 21 additions and 2 deletions
@@ -65,7 +65,16 @@ ShaderCode MathNodeBase::GetShaderCodeInternal(const QString &shader_id, NodeInp
      operation = QStringLiteral("%1 / %2");
      break;
    case kOpPower:
-      operation = QStringLiteral("pow(%1, %2)");
+      if (pairing == kPairTextureNumber) {
+        // The "number" in this operation has to be declared a vec4
+        if (type_a & NodeParam::kNumber) {
+          operation = QStringLiteral("pow(%2, vec4(%1))");
+        } else {
+          operation = QStringLiteral("pow(%1, vec4(%2))");
+        }
+      } else {
+        operation = QStringLiteral("pow(%1, %2)");
+      }
      break;
    }