claude_code/procedural-3d-engine
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Corrected usage flag for instancing buffer

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saschawillems 2016-04-17 13:51:16 +02:00
parent 0463d5b1e3
commit 6d54900c4d
2 changed files with 6 additions and 3 deletions
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2
README.md
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@ -99,7 +99,7 @@ Uses [assimp](https://github.com/assimp/assimp) to load and a mesh from a common
## [Mesh instancing](instancing/) ## [Mesh instancing](instancing/)
<img src="./screenshots/instancing.jpg" height="96px" align="right"> <img src="./screenshots/instancing.jpg" height="96px" align="right">
Shows the use of instancing for rendering many copies of the same mesh using different attributes and textures. A secondary uniform buffer containing instanced data, stored in device local memory, is used to pass instance data to the shader via vertex attributes with a per-instance step rate. The instance data also contains a texture layer index for having different textures for the instanced meshes. Shows the use of instancing for rendering many copies of the same mesh using different attributes and textures. A secondary vertex buffer containing instanced data, stored in device local memory, is used to pass instance data to the shader via vertex attributes with a per-instance step rate. The instance data also contains a texture layer index for having different textures for the instanced meshes.
<br><br> <br><br>
## [Multi sampling](multisampling/) ## [Multi sampling](multisampling/)

7
instancing/instancing.cpp
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@ -500,7 +500,7 @@ public:
&stagingBuffer.memory); &stagingBuffer.memory);
VulkanExampleBase::createBuffer( VulkanExampleBase::createBuffer(
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT |VK_BUFFER_USAGE_TRANSFER_DST_BIT, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
VK_MEMORY_HEAP_DEVICE_LOCAL_BIT, VK_MEMORY_HEAP_DEVICE_LOCAL_BIT,
instanceBuffer.size, instanceBuffer.size,
nullptr, nullptr,
@ -553,7 +553,10 @@ public:
uboVS.view = glm::rotate(uboVS.view, glm::radians(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f)); uboVS.view = glm::rotate(uboVS.view, glm::radians(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
} }
uboVS.time += frameTimer * 0.05f; if (!paused)
{
uboVS.time += frameTimer * 0.05f;
}
memcpy(uniformData.vsScene.mapped, &uboVS, sizeof(uboVS)); memcpy(uniformData.vsScene.mapped, &uboVS, sizeof(uboVS));
} }