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Use 16-bit single channel heightmap for terrain displacement

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saschawillems 2016-06-24 20:59:56 +02:00
parent a9de176d12
commit d9d3a3e3b3
6 changed files with 8 additions and 6 deletions
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1
android/build-all.bat
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@ -31,3 +31,4 @@ call _build multithreading %1
call _build textoverlay %1 call _build textoverlay %1
call _build debugmarker %1 call _build debugmarker %1
call _build scenerendering %1 call _build scenerendering %1
call _build terraintessellation %1

2
android/terraintessellation/build.bat
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@ -10,7 +10,7 @@ if %ERRORLEVEL% EQU 0 (
xcopy "..\..\data\shaders\terraintessellation\*.*" "assets\shaders\terraintessellation" /Y xcopy "..\..\data\shaders\terraintessellation\*.*" "assets\shaders\terraintessellation" /Y
mkdir "assets\textures" mkdir "assets\textures"
xcopy "..\..\data\textures\terrain_heightmap_r8.ktx" "assets\textures" /Y xcopy "..\..\data\textures\terrain_heightmap_r16.ktx" "assets\textures" /Y
xcopy "..\..\data\textures\terrain_texturearray_bc3.ktx" "assets\textures" /Y xcopy "..\..\data\textures\terrain_texturearray_bc3.ktx" "assets\textures" /Y
xcopy "..\..\data\textures\skysphere_bc3.ktx" "assets\textures" /Y xcopy "..\..\data\textures\skysphere_bc3.ktx" "assets\textures" /Y

1
android/uninstall-all.bat
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@ -38,6 +38,7 @@ adb uninstall de.saschawillems.vulkanMultithreading
adb uninstall de.saschawillems.vulkanTextoverlay adb uninstall de.saschawillems.vulkanTextoverlay
adb uninstall de.saschawillems.vulkanDebugmarker adb uninstall de.saschawillems.vulkanDebugmarker
adb uninstall de.saschawillems.vulkanScenerendering adb uninstall de.saschawillems.vulkanScenerendering
adb uninstall de.saschawillems.vulkanTerraintessellation
goto finish goto finish
:exit :exit

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data/textures/terrain_heightmap_r16.ktx Normal file
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data/textures/terrain_heightmap_r8.ktx
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8
terraintessellation/terraintessellation.cpp
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@ -68,7 +68,7 @@ public:
glm::vec4 lightPos = glm::vec4(0.0f, -2.0f, 0.0f, 0.0f); glm::vec4 lightPos = glm::vec4(0.0f, -2.0f, 0.0f, 0.0f);
glm::vec4 frustumPlanes[6]; glm::vec4 frustumPlanes[6];
float displacementFactor = 32.0f; float displacementFactor = 32.0f;
float tessellationFactor = 1.0f; float tessellationFactor = 0.75f;
glm::vec2 viewportDim; glm::vec2 viewportDim;
// Desired size of tessellated quad patch edge // Desired size of tessellated quad patch edge
float tessellatedEdgeSize = 20.0f; float tessellatedEdgeSize = 20.0f;
@ -117,8 +117,8 @@ public:
title = "Vulkan Example - Dynamic terrain tessellation"; title = "Vulkan Example - Dynamic terrain tessellation";
camera.type = Camera::CameraType::firstperson; camera.type = Camera::CameraType::firstperson;
camera.setPerspective(60.0f, (float)width / (float)height, 0.1f, 512.0f); camera.setPerspective(60.0f, (float)width / (float)height, 0.1f, 512.0f);
camera.setRotation(glm::vec3(-22.0f, 135.0f, 0.6f)); camera.setRotation(glm::vec3(-6.0f, -56.0f, 0.0f));
camera.setTranslation(glm::vec3(0.0f, 30.0f, 0.0f)); camera.setTranslation(glm::vec3(-45.0f, 14.0f, -28.5f));
camera.movementSpeed = 7.5f; camera.movementSpeed = 7.5f;
timerSpeed *= 15.0f; timerSpeed *= 15.0f;
// Support for tessellation shaders is optional, so check first // Support for tessellation shaders is optional, so check first
@ -210,7 +210,7 @@ public:
{ {
textureLoader->loadTexture(getAssetPath() + "textures/skysphere_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.skySphere); textureLoader->loadTexture(getAssetPath() + "textures/skysphere_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.skySphere);
// Height data is stored in a one-channel texture // Height data is stored in a one-channel texture
textureLoader->loadTexture(getAssetPath() + "textures/terrain_heightmap_r8.ktx", VK_FORMAT_R8_UNORM, &textures.heightMap); textureLoader->loadTexture(getAssetPath() + "textures/terrain_heightmap_r16.ktx", VK_FORMAT_R16_UNORM, &textures.heightMap);
// Terrain textures are stored in a texture array with layers corresponding to terrain height // Terrain textures are stored in a texture array with layers corresponding to terrain height
textureLoader->loadTextureArray(getAssetPath() + "textures/terrain_texturearray_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.terrainArray); textureLoader->loadTextureArray(getAssetPath() + "textures/terrain_texturearray_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.terrainArray);