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Added ETC2 and ASTC texture variants (Refs #174)

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This commit is contained in:
saschawillems 2017-03-08 20:42:23 +01:00
parent 7d7ef490c2
commit ab95c2f29a
6 changed files with 70 additions and 29 deletions
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27
texture/texture.cpp
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@ -79,7 +79,7 @@ public:
{
zoom = -2.5f;
rotation = { 0.0f, 15.0f, 0.0f };
title = "Vulkan Example - Texturing";
title = "Vulkan Example - Texture loading";
enableTextOverlay = true;
}
@ -591,6 +591,26 @@ public:
indices.data()));
}
// Texture loading is done here
void loadAssets()
{
// Vulkan core supports three different compressed texture formats
// As the support differs between implemementations we need to check and load the proper texture
// Block compression (BC) is common on desktops, ETC and ASTC on mobile
if (deviceFeatures.textureCompressionBC) {
loadTexture(getAssetPath() + "textures/metalplate01_bc2_unorm.ktx", VK_FORMAT_BC2_UNORM_BLOCK, false);
}
else if (deviceFeatures.textureCompressionASTC_LDR) {
loadTexture(getAssetPath() + "textures/metalplate01_astc_8x8_unorm.ktx", VK_FORMAT_ASTC_8x8_UNORM_BLOCK, false);
}
else if (deviceFeatures.textureCompressionETC2) {
loadTexture(getAssetPath() + "textures/metalplate01_etc2_unorm.ktx", VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK, false);
}
else {
vks::tools::exitFatal("Device does not support any compressed texture format!", "Error");
}
}
void setupVertexDescriptions()
{
// Binding description
@ -828,13 +848,10 @@ public:
void prepare()
{
VulkanExampleBase::prepare();
loadAssets();
generateQuad();
setupVertexDescriptions();
prepareUniformBuffers();
loadTexture(
getAssetPath() + "textures/pattern_02_bc2.ktx",
VK_FORMAT_BC2_UNORM_BLOCK,
false);
setupDescriptorSetLayout();
preparePipelines();
setupDescriptorPool();