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Added ETC2 and ASTC texture variants (Refs #174)

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This commit is contained in:
saschawillems 2017-03-10 15:20:08 +01:00
parent c688f7394c
commit a5a2211489
8 changed files with 96 additions and 49 deletions
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25
texturearray/texturearray.cpp
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@ -313,9 +313,26 @@ public:
void loadTextures()
{
loadTextureArray(
getAssetPath() + "textures/texturearray_bc3.ktx",
VK_FORMAT_BC3_UNORM_BLOCK);
// Vulkan core supports three different compressed texture formats
// As the support differs between implemementations we need to check device features and select a proper format and file
std::string filename;
VkFormat format;
if (deviceFeatures.textureCompressionBC) {
filename = "texturearray_bc3_unorm.ktx";
format = VK_FORMAT_BC3_UNORM_BLOCK;
}
else if (deviceFeatures.textureCompressionASTC_LDR) {
filename = "texturearray_astc_8x8_unorm.ktx";
format = VK_FORMAT_ASTC_8x8_UNORM_BLOCK;
}
else if (deviceFeatures.textureCompressionETC2) {
filename = "texturearray_etc2_unorm.ktx";
format = VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK;
}
else {
vks::tools::exitFatal("Device does not support any compressed texture format!", "Error");
}
loadTextureArray(getAssetPath() + "textures/" + filename, format);
}
void buildCommandBuffers()
@ -664,8 +681,8 @@ public:
void prepare()
{
VulkanExampleBase::prepare();
setupVertexDescriptions();
loadTextures();
setupVertexDescriptions();
generateQuad();
prepareUniformBuffers();
setupDescriptorSetLayout();