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Use cube map (from asset pack) in hdr example

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saschawillems 2017-04-22 10:22:01 +02:00
parent 1dd45a4ddf
commit 89dcddbdca
7 changed files with 21 additions and 54 deletions
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8
android/hdr/build.py
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@ -6,8 +6,8 @@ import glob
APK_NAME = "vulkanHDR"
SHADER_DIR = "hdr"
ASSETS_MODELS = ["cube.obj", "sphere.obj", "teapot.dae", "torusknot.obj"]
ASSETS_TEXTURES = ["hdr_uffizi_bc6uf.DDS", "hrd_uffizi_rgba16_float.dds"]
ASSETS_MODELS = ["cube.obj", "sphere.obj", "teapot.dae", "torusknot.obj", "venus.fbx"]
ASSETS_TEXTURES = ["hdr/uffizi_cube.ktx"]
if subprocess.call("ndk-build", shell=True) == 0:
print("Build successful")
@ -15,7 +15,7 @@ if subprocess.call("ndk-build", shell=True) == 0:
# Assets
os.makedirs("./assets/shaders/base", exist_ok=True)
os.makedirs("./assets/shaders/%s" % SHADER_DIR, exist_ok=True)
os.makedirs("./assets/textures", exist_ok=True)
os.makedirs("./assets/textures/hdr", exist_ok=True)
os.makedirs("./assets/models", exist_ok=True)
os.makedirs("./res/drawable", exist_ok=True)
@ -28,7 +28,7 @@ if subprocess.call("ndk-build", shell=True) == 0:
shutil.copy(file, "./assets/shaders/%s" % SHADER_DIR)
# Textures
for file in ASSETS_TEXTURES:
shutil.copy("../../data/textures/%s" % file, "./assets/textures")
shutil.copy("../../data/textures/%s" % file, "./assets/textures/hdr")
# Models
for file in ASSETS_MODELS:
shutil.copy("../../data/models/%s" % file, "./assets/models")

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data/shaders/hdr/bloom.frag.spv
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15
data/shaders/hdr/gbuffer.frag
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@ -3,7 +3,7 @@
#extension GL_ARB_separate_shader_objects : enable
#extension GL_ARB_shading_language_420pack : enable
layout (binding = 1) uniform sampler2D samplerEnvMap;
layout (binding = 1) uniform samplerCube samplerEnvMap;
layout (location = 0) in vec3 inUVW;
layout (location = 1) in vec3 inPos;
@ -24,13 +24,6 @@ layout (binding = 2) uniform UBO {
float exposure;
} ubo;
vec2 envMapEquirect(vec3 normal)
{
float phi = acos(-normal.y);
float theta = atan(-1.0 * normal.x, normal.z) + PI;
return vec2(theta / TwoPI, phi / PI);
}
void main()
{
vec4 color;
@ -40,7 +33,7 @@ void main()
case 0: // Skybox
{
vec3 normal = normalize(inUVW);
color = texture(samplerEnvMap, envMapEquirect(normal));
color = texture(samplerEnvMap, normal);
}
break;
@ -74,7 +67,7 @@ void main()
float spec = (fresnel * geoAtt) / (NdotV * NdotL * 3.14);
color = texture(samplerEnvMap, envMapEquirect(reflect(-wViewVec, wNormal)));
color = texture(samplerEnvMap, reflect(-wViewVec, wNormal));
color = vec4(color.rgb * NdotL * (k + spec * (1.0 - k)), 1.0);
}
@ -84,7 +77,7 @@ void main()
{
vec3 wViewVec = mat3(inInvModelView) * normalize(inViewVec);
vec3 wNormal = mat3(inInvModelView) * inNormal;
color = texture(samplerEnvMap, envMapEquirect(refract(-wViewVec, wNormal, 1.0/1.6)));
color = texture(samplerEnvMap, refract(-wViewVec, wNormal, 1.0/1.6));
}
break;
}

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data/shaders/hdr/gbuffer.frag.spv
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1
data/shaders/hdr/gbuffer.vert
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@ -28,7 +28,6 @@ out gl_PerVertex
void main()
{
outUVW = inPos;
outUVW.x *= -1.0;
switch(type) {
case 0: // Skybox

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data/shaders/hdr/gbuffer.vert.spv
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39
hdr/hdr.cpp
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@ -1,6 +1,8 @@
/*
* Vulkan Example - HDR
*
* Note: Requires the separate (HDR) asset pack (see data/textures/hdr/README.md)
*
* Copyright (C) 2016-2017 by Sascha Willems - www.saschawillems.de
*
* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
@ -41,7 +43,7 @@ public:
});
struct {
vks::Texture2D envmap;
vks::TextureCubeMap envmap;
} textures;
struct Models {
@ -601,41 +603,14 @@ public:
{
// Models
models.skybox.loadFromFile(getAssetPath() + "models/cube.obj", vertexLayout, 0.05f, vulkanDevice, queue);
std::vector<std::string> filenames = {"sphere.obj", "teapot.dae", "torusknot.obj"};
std::vector<std::string> filenames = { "geosphere.obj", "teapot.dae", "torusknot.obj", "venus.fbx" };
for (auto file : filenames) {
vks::Model model;
model.loadFromFile(getAssetPath() + "models/" + file, vertexLayout, 0.05f, vulkanDevice, queue);
model.loadFromFile(ASSET_PATH "models/" + file, vertexLayout, 0.05f * (file == "venus.fbx" ? 3.0f : 1.0f), vulkanDevice, queue);
models.objects.push_back(model);
}
// Load HDR texture (equirectangular projected)
// VK_FORMAT_BC6H_UFLOAT_BLOCK is a compressed 16 bit unsigned floating point format for storing HDR content
if (deviceFeatures.textureCompressionBC)
{
textures.envmap.loadFromFile(getAssetPath() + "textures/hdr_uffizi_bc6uf.DDS", VK_FORMAT_BC6H_UFLOAT_BLOCK, vulkanDevice, queue);
}
else
{
textures.envmap.loadFromFile(getAssetPath() + "textures/hrd_uffizi_rgba16_float.dds", VK_FORMAT_R16G16B16A16_SFLOAT, vulkanDevice, queue);
}
// Custom sampler with clamping adress mode
vkDestroySampler(device, textures.envmap.sampler, nullptr);
VkSamplerCreateInfo sampler{};
sampler.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
sampler.magFilter = VK_FILTER_LINEAR;
sampler.minFilter = VK_FILTER_LINEAR;
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
sampler.addressModeV = sampler.addressModeU;
sampler.addressModeW = sampler.addressModeU;
sampler.maxLod = (float)textures.envmap.mipLevels;
sampler.maxLod = 1.0f;
sampler.anisotropyEnable = VK_TRUE;
sampler.maxAnisotropy = vulkanDevice->properties.limits.maxSamplerAnisotropy;
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
VK_CHECK_RESULT(vkCreateSampler(vulkanDevice->logicalDevice, &sampler, nullptr, &textures.envmap.sampler));
textures.envmap.descriptor.sampler = textures.envmap.sampler;
// Load HDR cube map
textures.envmap.loadFromFile(getAssetPath() + "textures/hdr/uffizi_cube.ktx", VK_FORMAT_R16G16B16A16_SFLOAT, vulkanDevice, queue);
}
void setupDescriptorPool()